Aprilia Riders

[speedkills]

Originally posted by jinhanz@Jul 25 2005, 03:08 PM

by the way chris this sat free to view bike for mi??? and vick vincent andrew speedkills and whoever wanna go together??? haha

wad time? if at night i can..maybe after that we go for coffee lor..organise a small coffee outing la! then you drve again! hahaha..

[DNAdevil]

Originally posted by speedkills@Jul 26 2005, 12:14 AM

wad time? if at night i can..maybe after that we go for coffee lor..organise a small coffee outing la! then you drve again! hahaha..

if at nite i dun think i can liao....... cos wrk till 11.15pm lay........no join u all again....DAM!!!! i keep missing the outing with u guy due to my wrking time!!!

[speedkills]

Originally posted by DNAdevil@Jul 26 2005, 12:17 AM

if at nite i dun think i can liao....... cos wrk till 11.15pm lay........no join u all again....DAM!!!! i keep missing the outing with u guy due to my wrking time!!!

11.15pm? the night is still young! hehe

 

i think we would still be out man...sat night fever lei

[Benguin46]

if jinhan drive ill be his dog again.. haha!!

[DNAdevil]

Originally posted by speedkills@Jul 26 2005, 12:20 AM

11.15pm? the night is still young! hehe

 

i think we would still be out man...sat night fever lei

hai....sat nite fever?!?! i too old for that liao hahaha anyway if u all around AMK area then most likely i can join u all for kopi after wrk

[redridinghood]

hey guys.. wed nite movie? got 15 free tix coutesy of RON.. haha.. so.. while stocks last.. unless got extra ppl wanna join n dont mind forking out money.. hahaha.. =P so here goes..

 

date: 27th july (wed)

time: 9plus show.. meet up around 7pm

venue: suntec city ( free parkin )

show: the island

 

going:

1. redridinghood - vivi

2. lightbolt75 - godfrey - 93361475

3. M@+r!x - andrew - 98554161

4. CMYRS - andre - 91992019

5. myxplix - raf - 91255705

6. luckyexplorer - jincong - 94232981

7. xiongzzz - weixiong - 96654547

8. Visor - ben - 97828437

9. kron - andy - 94876200

10.

11.

12.

13.

14.

15.

 

hey guys if anything to edit pls do so asap if not the tix go to waste.. if your name is thr means u confirm liao so dun fly aeroplane kayz.. haha..

cya guys!

[xiongzzz]

my bike flooded with water after i was forced to park in camp for 5 days w/o touching it... even the spark plug was damp. so sorry guys if cldnt ride to meet up, its either pillion, bus or stay at home till my bike finish its major operation. heh.

[muser]

Originally posted by CMYRS

They were built to last longer than copper ones i.e. longer service intervals.

But NGK's German website says here that racing plugs have a shorter life than standard plugs, sacrificing longevity for performance.

[xiongzzz]

i'hv heard from mechs that racing plugs hv shorter lifespan...but the fuel burns better...

even tried den's plugs? i'm trying to buy a plug with onger lifespan after mine's gone 2 days after i got a new plug

[CMYRS]

Originally posted by muser+Jul 26 2005, 01:28 AM-->

QUOTE (muser @ Jul 26 2005, 01:28 AM)

[fibre]

maybe this will clear things up:

 

http://www.ngk.de/VX_spark_plugs__Platinum_plugs.693.0.html

 

The packaging for the platinum plug is the red background with checkered flag....the same as the racing plugs, which is quite misleading

 

anyway, the platinum spark plug cost $9 at LAB, which can buy u 3 standard plugs

 

for me, i choose to get a new $3 plug per month

[-fspider-]

:nono:

i leaVe deN taKe phoTo...

siGhz....

sooN heNg

[gonggong]

hmmm....spark plug....well, this is my thought...might be wrong.....But is this thought of mine that prompted me to put denso iridium recently.

 

Most 2B bikes have only one plug. Unlike V-twin, inline4, V6, etc....if one plug misfires (one out of the many many times), its still fine becoz there are other plugs to compensate....and its almost impossible to experience all plugs to misfire at the same time.

 

Having said, our RS125 has only ONE plug and has high revving engine...so...you judge for yourself....performance plugs or normal plugs.....

[speedkills]

hey guys.. wed nite movie? got 15 free tix coutesy of RON.. haha.. so.. while stocks last.. unless got extra ppl wanna join n dont mind forking out money.. hahaha.. =P so here goes..

 

date: 27th july (wed)

time: 9plus show.. meet up around 7pm

venue: suntec city ( free parkin )

show: the island

 

going:

1. redridinghood - vivi

2. lightbolt75 - godfrey - 93361475

3. M@+r!x - andrew - 98554161

4. CMYRS - andre - 91992019

5. myxplix - raf - 91255705

6. luckyexplorer - jincong - 94232981

7. xiongzzz - weixiong - 96654547

8. Visor - ben - 97828437

9. kron - andy - 94876200

10. Speedkills - Samuel - 91060925

11.

12.

13.

14.

15.

 

hey guys if anything to edit pls do so asap if not the tix go to waste.. if your name is thr means u confirm liao so dun fly aeroplane kayz.. haha..

cya guys!

[muser]

Originally posted by CMYRS+-->

QUOTE (CMYRS)

Yes Chris, those are racing plugs, I am referring to plat plugs compared to the normal copper ones.   Normal plugs are different to racing ones, eg. usually always colder type ranges, able to withstand higher themal discharge loads with very close to 1-3% failure rates over a specified period.   Comparing normal plugs to racing ones are a little like comparing Suzuki Swift vs R1 around PG   U get the drift...........[/b] Oh, I see, you're talking about standard platinum plugs versus standard copper ones, not racing platinum plugs verses standard copper ones. That makes sense Andre, thanks   Originally posted by fibre@ The packaging for the platinum plug is the red background with checkered flag....the same as the racing plugs, which is quite misleading Hey, that's really misleading and confusing!

[berukblue]

hey guys.. wed nite movie? got 15 free tix coutesy of RON.. haha.. so.. while stocks last.. unless got extra ppl wanna join n dont mind forking out money.. hahaha.. =P so here goes..

 

date: 27th july (wed)

time: 9plus show.. meet up around 7pm

venue: suntec city ( free parkin )

show: the island

 

going:

1. redridinghood - vivi

2. lightbolt75 - godfrey - 93361475

3. M@+r!x - andrew - 98554161

4. CMYRS - andre - 91992019

5. myxplix - raf - 91255705

6. luckyexplorer - jincong - 94232981

7. xiongzzz - weixiong - 96654547

8. Visor - ben - 97828437

9. kron - andy - 94876200

10. Speedkills - Samuel - 91060925

11. berukblue - Hanif - 94773946

12.

13.

14.

15.

 

hey guys if anything to edit pls do so asap if not the tix go to waste.. if your name is thr means u confirm liao so dun fly aeroplane kayz.. haha..

cya guys!

[spiderman]

Originally posted by speedkills@Jul 26 2005, 12:10 AM

hey doctor, the clutch basket will cost how much outside? maybe can buy to stock up..hehe

 

doctor wanna come out for supper now? hungry

i not so sure for 125... 250 one is around 180 new one....

[jinhanz]

think probably in the morning. or early afternoon...

[DNAdevil]

Originally posted by jinhanz@Jul 26 2005, 11:26 AM

think probably in the morning. or early afternoon...

morning? sure i can just sms me the place k?

[spiderman]

Originally posted by muser@Jul 26 2005, 10:21 AM

 

So no one here uses racing plugs? And what about iridium plugs as opposed to platinum plugs? I'd like to know if Derrick (ROTHMANS) really uses racings plugs, and if Regina has been irresponsible in recommending them to me if their lifespans are shorter than standard ones.

yes he is using ngk racing plugs... i dunno what u guys mean about lifespan of the plugs.. to me the plugs can be used for very long as long as yr air fuel ratio is correct the plug wun foul with carbon and still be in working condition if u clean of the carbon.... there will be slight lack in perfomance after a few months but u can try to adjust spark plug gap to compensate... thats from my experience lah...

[redridinghood]

hey guys.. i need a confirmed no. of ppl going by tonight kay! tks..

 

yo guys.. wed nite movie? got 15 free tix coutesy of RON.. haha.. so.. while stocks last.. unless got extra ppl wanna join n dont mind forking out money.. hahaha.. =P so here goes..

 

date: 27th july (wed)

time: 9plus show.. meet up around 7pm

venue: suntec city ( free parkin )

show: THE ISLAND OR if got sneaks for STEALTH tmr then mayb we'll watch tt instead..

 

going:

1. redridinghood - vivi

2. lightbolt75 - godfrey - 93361475

3. M@+r!x - andrew - 98554161

4. CMYRS - andre - 91992019

5. myxplix - raf - 91255705

6. luckyexplorer - jincong - 94232981

7. xiongzzz - weixiong - 96654547

8. Visor - ben - 97828437

9. kron - andy - 94876200

10. Speedkills - Samuel - 91060925

11. berukblue - Hanif - 94773946

12.

13.

14.

15.

 

hey guys if anything to edit pls do so asap if not the tix go to waste.. if your name is thr means u confirm liao so dun fly aeroplane kayz.. haha..

cya guys!

[spiderman]

Somemore information to share with u guys but ppl who know the engine basics well will benefit more... others will be very confused...

 

Porting - The basics

 

Porting:

 

The process of cylinder porting is a funny paradox. The people in the market to buy it are looking for information and the people in the market of selling it are hiding information on porting. So much myth and misinformation is associated with this complex machining and metal finishing process. Yet the tooling is easily available and the design of the ports is actually quite straightforward with resources like computer design programs. This article is an overview of how porting is performed and how it can benefit your performance demands.

 

Two-Stroke Principles

 

Although a two-stroke engine has fewer moving parts than a four-stroke engine, a two-stroke is a complex engine with different phases taking place in the crankcase and in the cylinder bore at the same time. This is necessary because a two-stroke engine completes a power cycle in only 360 degrees of crankshaft rotation, compared to a four-stroke engine, which requires 720 degrees of crankshaft rotation to complete one power cycle. Two-stroke engines aren't as efficient as four-stroke engines, meaning that they don't retain as much air as they draw in through the intake. Some of the air is lost out the exhaust pipe. If a two-stroke engine could retain the same percentage of air, they would be twice as powerful as a four-stroke engine because they produce twice as many power strokes in the same number of crankshaft revolutions. The following is an explanation of the basic operation of the two-stroke engine.

 

1. Starting with the piston at top dead center (TDC 0 degrees) ignition has occurred and the gasses in the combustion chamber are expanding and pushing down the piston. This pressurizes the crankcase causing the reed valve to close. At about 90 degrees after TDC the exhaust port opens ending the power stroke. A pressure wave of hot expanding gasses flows down the exhaust pipe. The blow-down phase has started and will end when the transfer ports open. The pressure in the cylinder must blow-down to below the pressure in the crankcase in order for the unburned mixture gasses to flow out the transfer ports during the scavenging phase.

2. 2.Now the transfer ports are uncovered at about 120 degrees after TDC. The scavenging phase has begun. Meaning that the unburned mixture gasses are flowing out of the transfers and merging together to form a loop. The gasses travel up the backside of the cylinder and loops around in the cylinder head to scavenge out the burnt mixture gasses from the previous power stroke. It is critical that the burnt gasses are scavenged from the combustion chamber, to make room for as much unburned gasses as possible. That is the key to making more power in a two-stroke engine. The more unburned gasses you can squeeze into the combustion chamber, the more the engine will produce. Now the loop of unburned mixture gasses have traveled into the exhaust pipe's header section. Most of the gasses aren't lost because a compression pressure wave has reflected from the baffle cone of the exhaust pipe, to pack the unburned gasses back into the cylinder before the piston closes off the exhaust port.

3. Now the crankshaft has rotated past bottom dead center (BDC 180 degrees) and the piston is on the upstroke. The compression wave reflected from the exhaust pipe is packing the unburned gasses back in through the exhaust port as the piston closes off the port the start the compression phase. In the crankcase the pressure is below atmospheric producing a vacuum and a fresh charge of unburned mixture gasses is flowing through the reed valve into the crankcase.

4. The unburned mixture gasses are compresses and just before the piston reaches TDC, the ignition system discharges a spark causing the gasses to ignite and start the process all over again.

 

 

What is Porting?

 

Porting is a metal finishing process performed to the passageways of a two-stroke cylinder and crankcases, that serves to match the surface texture, shapes and sizes of port ducts, and the timing and angle aspects of the port windows that interface with the cylinder bore. The port windows determine the opening and closing timing of the intake, exhaust, blowdown, and transfer phases that take place in the cylinder. These phases must be coordinated to work with other engine components such as the intake and exhaust system. The intake and exhaust systems are designed to take advantage of the finite amplitude waves that travel back and forth from the atmosphere. Porting coordinates the opening of the intake, exhaust, and transfer ports to maximize the tuning affect of the exhaust pipe and intake system. Generally speaking porting for more mid-range acceleration is intended for use with stock intake and exhaust systems.

 

Terminology

 

These are some common words and terms associated with porting.

 

Ports

Passageways cast and machined into the cylinder.

 

Ducts

The tube shape that comprises the ports.

 

Windows

The part of the port that interfaces the cylinder bore.

 

Exhaust Port

The large port where the burnt gasses exit the cylinder.

 

Exhaust Bridge

The center divider used on triangular shaped exhaust ports.

 

Sub-Exhaust Ports

The minor exhaust ports positioned on each side of the main exhaust port.

 

Triple Ports

One main bridgeless exhaust port with one sub exhaust port on each side.

 

Front Transfers

Transfer ports link the crankcase to the cylinder bore. The front set (2) of transfers is located closest to the exhaust port.

 

Rear Transfers

The rear set of transfers is located closest to the intake port.

 

Auxiliary Transfers

Some cylinders have a minor set of transfers located between the front and rear sets.

 

Transfer Port Area Ratio

The area of the crankcase side of the transfers divided by the area of the port window.

 

Boost Ports

The port or ports that are located opposite of the exhaust port and in-line with the intake port. These ports are usually by-pass ports for the intake or piston and sharply angled upwards to help direct the gas flow during scavenging.

 

Port-Time-Area

A mathematical computation of the area of a port, divided by the displacement of the cylinder, and multiplied by the time that the port is open. The higher an engine revs the more time-area the port needs. The higher the piston speed the less time available for the gas to flow through the port.

 

Duration

The number of crankshaft angle rotational degrees that a port is open.

 

Opening Timing

The crank angle degree when the piston uncovers the port.

 

Crank Angle

Measured in units of degrees of crankshaft rotation. On a two-stroke engine there are a total of 360 degrees of crankshaft rotation in one power cycle.

 

Port Side angle

The side angle of a port measured at the window, from the centerline of the bore with the exhaust port being the starting point (0).

 

Port Roof angle

The angle of the top of the port at the window.

 

Port Height

The distance from the top of the cylinder to the opening point of the port.

 

Top Dead Center (TDC)

The top of the piston's stroke.

 

Bottom Dead Center (BDC)

The bottom of the piston's stroke.

 

Chordal Width

The effective width of a port, measured from the straightest point between sides.

 

BMEP

Brake Mean Effective Pressure.

 

Loop Scavenging

Scavenging is the process of purging the combustion chamber of burnt gasses. Loop scavenging refers to the flow pattern generated by the transfer port duct shapes and port entry angles and area. The gasses are directed to merge together and travel up the intake side of the bore into the head and loop around towards the exhaust port.

 

Blow-Down

This is the time-area of the exhaust port between the opening time of the exhaust and the transfers. When the exhaust port opens the pressure blows down, ideally to below the rising pressure of the gasses in the transfer ports. Blow-down is measured in degrees of crank rotation and time-area.

Effective Stroke

The distance from TDC to the exhaust port height. The longer the effective stroke the better the low-end power.

Primary Compression Ratio

The compression ratio of the crankcase.

Secondary Compression Ratio

The compression ratio of the cylinder head.

Compression Waves

Pressure waves that reflects from the end of the intake or exhaust system and return to the engine.

Expansion Waves

Pressure waves that travel from the engine and out to the atmosphere.

 

Tools of the Trade

 

There are two main types of tools used in porting, measuring and grinding. Here is an overview of how these tools are used.

 

Measuring

The basic measuring tools include a dial caliper, an inside divider, and an assortment of angle gauges. The caliper is used to measure the port height, the divider is used to measure the chordal width of the port, and the angle gauges are used to measure the roof and side angles of the ports. Calipers and dividers are available from places like Sears or industrial supply stores. Angle gauges are fashioned from cardboard and specific to individual cylinders.

 

Grinding

The most common grinding tools are electric powered. They consist of a motor, speed control, flexible drive shaft, tool handle, and tool bits. The power of these motors ranges from 1/5th to 1/4th HP with a maximum rpm of 15,000. Popular manufacturers include Foredom, Dremel, and Dumor. Each company sells a full compliment of accessories for all sorts of hobbyist activities. The most popular source for cylinder porting tools and accessories is CC Specialty in Tennessee (1-800-762-6995).

 

The tool handles and bits are the secret to porting. There are two types of tool handles; straight and right angle. The straight tool handles are used for machining the port ducts. The right angle tool handles are used to gain access to the port windows from the cylinder bore. Over the years I've tested hundreds of different tool bits and arrived at some simple materials and patterns for finishing the different surfaces of a cylinder. The materials of a cylinder range from aluminum as the base casting material, to a cast iron or steel liner, or nickel composite plated cylinder bores. Here are the basic tool bits used for porting; tungsten carbide works best for aluminum, steel, and cast iron, stones are best for grinding through nickel composite. The tungsten carbide tool bits are available in hundreds of different patterns and shapes. The diamond pattern is the best performing and the shape of the bit should match the corresponding shape of the port. Stones, or mounted points as they are termed in industrial supply catalogs, are available in different shapes and grits. The grits are graded by the color of the stones. Gray being the most course and red being the most fine. The finer the grit the faster it wears but the smoother the finish.

 

Making Ports Bigger

 

Generally speaking, if you're trying to raise the peak rpm of the powerband with an aftermarket exhaust system of clutching on a snowmobile, the ports will probably need to be machined in this manner; widen the transfer ports for more time-area and raise the exhaust port for more duration. Most OEM cylinders have exhaust ports that are cast to the maximum safe limit of chordal width. Often times widening the exhaust port will cause accelerated piston and ring wear. In some cases the port will be widened so far that it breaks through into the water jacket. The internal casting on some cylinders is so thin that it prevents tuners from widening the exhaust port. Transfer ports should be widened with respect to the piston ring centering pins. The ports should have a safe margin of 2mm for the centering pin. The height of the transfer ports is based on the time-area of the exhaust port above the transfer port opening height. That is called Blow-down. The exhaust port has to evacuate the cylinder bore of burnt gasses before the transfers open, otherwise backflow will occur into the crankcase. That can cause a variety of dangerous problems like blown crank seals, chipped or burnt reeds, or in extreme circumstances a fire that can extend out of the carb. The angles of the transfers are important too. Generally speaking when the side angles direct the gasses to the intake side of the cylinder, or the roof angles are a steep angle 15-25 degrees), the porting will be better for trail-riding. When the side angles direct the gasses to the center of the cylinder and the roof angles are nearly flat (0-5 degrees), the porting will be better suited to drag or lake racing.

 

 

Making Ports Smaller

 

Ports are purposely made smaller for several reasons. One or more of the ports could have been designed too big, or a well-meaning tuner may have been overzealous, or a customer may have asked for more that he could handle. There are performance gains to be had from smaller ports, for high altitude compensation or for more punch for trail and snowcross riding. Simply using a thinner base gasket or by tunring-down the cylinder base on a lathe. Cometic Gasket Co. in Mentor Ohio makes graded gaskets from .25 to 1.5mm and even custom base plates for stroker engines. (http://www.cometic.com) Another method is by welding the perimeter of the port, although that entails replating the bore. Transfer and intake ports can be made smaller with the use of epoxy. Brand name products like DURO Master Mend or Weld-Stick are chemical resistant, easy to mold to fit, and can withstand temperatures of 400F. Master Mend is a liquid product and Weld-Stick is a semi-dry putty material. The epoxy can be applied to the roof of the ports to retard the timing and reduce the duration. It can be applied to the sides of the transfers to reduce the time-area, and it can be applied to the transfer ducts to boost the primary compression ratio (crankcase volume).

 

Porting for Big Bores

 

WISECO offers big bore piston kits for most popular snowmobiles. (http://www.wiseco.com) The average increase in displacement is 50cc per cylinder. This requires that the cylinder be over-bored 4-8mm. Because the ports enter the cylinder bore at angles, when the bore size is increased all the ports drop in height. The steeper the port angles the greater the port height will drop. Lower port heights mean retarded timing and reduced duration. The exhaust port gets narrower and the transfers get wider. A larger displacement cylinder will require more port-time-area. Normally the exhaust port needs to be raised higher than stock to compensate for the compression ratio. If you're adding a set of performance pipes at the same time as the big bore, you'll need to compensate the port timing to get the best gains from the pipes. It's a complicated thing. Sometimes tuners use thicker base gaskets to compensate for big bores, but ideally the port-time-area needs to be calculated before any serious porting changes are made. If you are strictly trail riding at high altitude, you can just have the cylinders bored and replated because the porting will inherently change to suit that type of application.

[lacrimosae]

Posted by muser

Riding jackets don't have to be fancy, they just have to protect. Armour can take a while to get used to, but sometimes repositioning the armour if it's attached with velcro can help it sit on your body better. I haven't heard of Shift, though I know Fox, No Fear and Thor. alpinestars started out in MX too, though they're big now in street racing. A lot of MX and street gear shares similar characteristics, though there are some features tailored more for one than the other.

 

That's true.

 

I used to be obsessed about mountain biking and i have plenty of Shift gear. They are really big in MX apparel. Got a couple of their jerseys, jackets, rain gear, shedloads of gloves, about 8 pairs, shin pads, armour, etc...

I've spent over $20,000 of mountain bikes and gear. Mostly on my 4 lovely bikes and Shift, Scott, Azonic, Lizard Skin, Marzocchi, RaceFace, Pearl Izumi, RavX, Scott, Rocket Parts, Thor, Fox, AXO, SixSixOne, Answer, Specialized, Troy Lee Design apparel. Motorbike expenditure simply pales in comparison.

 

Dont go down the same road as I did. You really dont need too many types of apparel for one discipline of riding. Get a good helmet, jacket, pants, boots, gloves and you're set for life.

 

Posted by t|rAm|sU

hopin to join u guys soon......

if anyone noe of someone sellin rs125......pls let me noe k?thanx!!!!!!

 

I've got an Aprilia for sale. FT plate. Good condition, owned by my girlfriend. Well-cared for, and accident free. Make a good price and its yours. Does not include current rider.

 

Posted by Sub Zero

Yup, I'm riding now.. I actually bought my Aprilia a month before i passed.. lol

 

This is not the wisest thing to do and I dont recommend it.

 

Posted by eyz

is that it's not really accurate.. the speed as reflected on the display is not realtime.. there's a lag between the actual speed and the displayed speed.. when ya bike comes to a stop, the display will still be showing 10 - 20km/h.. so if ya getting a digital speedo, make sure it doesn't has tis lag thingy.. no matter how accurate the digital speedo can calculate the speed, but wat's the use if it doesn't reflect the correct actual speed at that point of time..

 

In my last 9 years of cycling, I have never encountered any speedometer/cyclocomputer that could give a real time reading of your speed. Every speedometer has a lag and the cordless/wireless ones have a bigger lag than the wired ones. Cateye, Echo, Mavic, Oregon, Polar, Cycling Manager, Shimano, Siemens, Topeak, Sigma, Specialized, VDO, Vetta, Cat. These are the brands of speedometers I've used before, cant think of any others at the moment. Some have more functions like integrated heart rate monitors, cadence etc. I've spent a bomb on these cyclocomputers myself, trying to get The One with no lag. But sad to say, ALL have a lag of 1-3 seconds.

 

In terms of accuracy, the digital speedometers calculate the number the revolutions multiplied by the circumference of your tyre per second to give you the speed at every 1-2 second intervals. For measuring current speed, top speed, average speed and multiple trip distances, it’s a lot more accurate. ‘Current’ refers to the speed you were at 1-2 seconds ago. I think it’s an alternative that riders can consider other than our analogue speedometers. Even GPS have a lag time.

 

For those who want a real time (5-10km/h tolerance) reading of your speed, our analogue speedometers will do the job. But to have an accurate + real time reading, I recommend retrofitting a speed gun into your dashboard.

 

Alex,

Thanks for sharing again... You are like a walking information booth on Aprilias!!

 

Will be meeting Chris (muser) for dinner tonight at 8pm to catch up with him first.

Hope to catch up with the rest of you guys soon!!!

 

Ride Hard; Ride Safe!

[Benguin46]

hey guys.. i need a confirmed no. of ppl going by tonight kay! tks..

 

yo guys.. wed nite movie? got 15 free tix coutesy of RON.. haha.. so.. while stocks last.. unless got extra ppl wanna join n dont mind forking out money.. hahaha.. =P so here goes..

 

date: 27th july (wed)

time: 9plus show.. meet up around 7pm

venue: suntec city ( free parkin )

show: THE ISLAND OR if got sneaks for STEALTH tmr then mayb we'll watch tt instead..

 

going:

1. redridinghood - vivi

2. lightbolt75 - godfrey - 93361475

3. M@+r!x - andrew - 98554161

4. CMYRS - andre - 91992019

5. myxplix - raf - 91255705

6. luckyexplorer - jincong - 94232981

7. xiongzzz - weixiong - 96654547

8. Visor - ben - 97828437

9. kron - andy - 94876200

10. Speedkills - Samuel - 91060925

11. berukblue - Hanif - 94773946

12. Benguin46- Benedict - 96988499

13.

14.

15.

 

hey guys if anything to edit pls do so asap if not the tix go to waste.. if your name is thr means u confirm liao so dun fly aeroplane kayz.. haha..

cya guys!

[muser]

Originally posted by spiderman+-->

QUOTE (spiderman)

yes he is using ngk racing plugs... i dunno what u guys mean about lifespan of the plugs.. to me the plugs can be used for very long as long as yr air fuel ratio is correct the plug wun foul with carbon and still be in working condition if u clean of the carbon.... there will be slight lack in perfomance after a few months but u can try to adjust spark plug gap to compensate... thats from my experience lah...[/b] I was under the impression that spark plug tips made of certain materials last longer than others. For instance, after a while, the ends of spark plugs get worn out and slightly rounded, reducing efficiency, requiring either replacement or re-gapping, like you mentioned. Supposedly, more expensive plugs reduces this need. But like I said, I don't know cuz I never tried myself! Oh yah, anyone know where's the best place to get a spark plug gapping tool? I already have plenty of feeler gauges that I use for setting up my guitars. Hmm, I must ask Derrick about his spark plugs sometime soon.   Originally posted by spiderman@ It is critical that the burnt gasses are scavenged from the combustion chamber, to make room for as much unburned gasses as possible. That is the key to making more power in a two-stroke engine. This reminds me of my army workshop IC telling me about a supercharger-like device whose sole purpose is to aid the scavenging process. Anyone heard of such a thing?   Thanks again for sharing good info Alex. Any idea where the best place would be to get my engine ported in Singapore?