Aprilia Riders

[muser]

Originally posted by CMYRS@May 4 2005, 11:15 AM

Why would it be better to use gear oil than engine oil even though the 2 are of similar viscosity and engine oil holds up better under extreme high heat conditions?

 

Any particular SAE rating to recommend?

HMmmmmm.....maybe thats why I always have problems finding neutral all the time!

Car engine oil instead of motorbike gear oil?

 

Well, gear oil is a transmission oil, and therefore, to my understanding, has different properties and additives compared with car engine oil. Car engine oil usually doesn't have the job of lubricating the clutch and gearbox and can therefore contain friction-reducing additives to prolong engine life. These same additives produce clutch slippage when used in bike gear/clutch reservoirs. Not all car engine oils contain these additives, but most do.

 

Why do you say that engine oil holds up better under extreme high heat? Many would claim the opposite, especially when bike gear oils are intended to combat shearing, which is the effect of the gears slicing through the oil and squeezing oil out from between gears.

 

Or perhaps you were asking why not use motorcycle 4T oil instead of gear oil? If that's the case, the same logic applies, minus the bit about clutch slippage.

 

I'm using a SAE 75 weight gear oil, which I believe translates to SAE 10 weight for bike 4T and car engine oils.

 

Oh yah, and I'm no expert on these matters; just sharing what little I know. Personally, I wouldn't take any risks with bike fluids, and would only use the best motorcycle-specific stuff. But then again everyone knows I'm kiasu. Part of the reason for my attitude though is that I can actually feel the difference between gear oil brands with the same ratings.

[muser]

Originally posted by Axxis@May 4 2005, 12:51 PM

well it's official. I cooked the engine... Block and piston are a mess.

=((

*wahhhhhhhhh*

Oh no! Can you get Cheng Xi's block and piston? Maybe you can get a Pollini replacement block and piston? Feel for your bro :3P

[Axxis]

8385> =((

doh doh doh doh doh!

[Axxis]

[gonggong]

Originally posted by muser@May 4 2005, 01:33 PM

Oh no! Can you get Cheng Xi's block and piston? Maybe you can get a Pollini replacement block and piston? Feel for your bro :3P

Axxis, just get the polini kit...since you are only using it as a track bike

[Axxis]

yeah but Ideal doesn't have any in stock at the moment.

anyway, I'm trying to recover financially from all the bike purchases at the moment and the timing of this REALLY sucks.

[berukblue]

CHris....maybe you can sell your sonic a little earlier? Anyway since its ur track bike i guess u can take the time to look for the cash

[Axxis]

yeah.. I wish but I'm holding it for my mate and he's not got the money (or his licence) till atlest 2nd June.

might be easier and better to sell my cbr and keep e sonic for the time being.

fark...

[wacko]

woah chris...

i feel for ya..

 

anyway guys..

check out the pic..

wacko in action...

[Axxis]

wacko> thanks man...

 

is your bike down at Ideal? Saw one that looks the same.

So many prilly's sitting outside when I went down today.

[wacko]

Originally posted by Axxis@May 4 2005, 05:03 PM

wacko> thanks man...

 

is your bike down at Ideal? Saw one that looks the same.

So many prilly's sitting outside when I went down today.

yep...

my clutch cable burst..

so i send for a tow truck down to ideal..

apparently they do not have the stock yet..

so i have to keep my baby there first..

[eyz]

heard that this mod is able to boost 10 - 15km on the speedo...

can cut wind resistance~~

 

http://img179.echo.cx/img179/492/dsc000789fj.jpg

 

wahaha

 

Chrix, wat ya reckon??

kaka

[Axxis]

LOL.. that made my day man. I've had a frown the entire day but now I'm smiling.

I forgot to superglue it in place before the day started.

Can you send me the full pic.

[email protected]

[wacko]

so..

chris..

when u taking ur bike..??

so we can go down PG again...

this time its my turn to drag my knees...

wahahhahaha......

 

 

check out me and my bike...

wahahahah (so vain)

[berukblue]

HAHA....thats me in the blue jacket in the background Next time take pic ask permission lah LOL

[warren84]

Originally posted by karmatrix@May 2 2005, 11:58 PM

hello, anybody can recommend a good choice of 2t and gearoil for my rs250? heard motul 600 is not bad...gearoil? just got my bike and dunno wat best for her..hope the rs experts can helped out.. i heard that the gear oil need to use a specific rating? and where to get it cheaper? thks..

ya i'm, using motul 600, and also motul gearoil... can reccomened pleasure workshop to u... need help just call mi~~ u living where

[CMYRS]

Originally posted by muser@May 4 2005, 01:26 PM

Car engine oil instead of motorbike gear oil?

 

Well, gear oil is a transmission oil, and therefore, to my understanding, has different properties and additives compared with car engine oil. Car engine oil usually doesn't have the job of lubricating the clutch and gearbox and can therefore contain friction-reducing additives to prolong engine life. These same additives produce clutch slippage when used in bike gear/clutch reservoirs. Not all car engine oils contain these additives, but most do.

 

 

 

Or perhaps you were asking why not use motorcycle 4T oil instead of gear oil? If that's the case, the same logic applies, minus the bit about clutch slippage.

 

I'm using a SAE 75 weight gear oil, which I believe translates to SAE 10 weight for bike 4T and car engine oils.

 

Oh yah, and I'm no expert on these matters; just sharing what little I know. Personally, I wouldn't take any risks with bike fluids, and would only use the best motorcycle-specific stuff. But then again everyone knows I'm kiasu. Part of the reason for my attitude though is that I can actually feel the difference between gear oil brands with the same ratings.

Why do you say that engine oil holds up better under extreme high heat? Many would claim the opposite, especially when bike gear oils are intended to combat shearing, which is the effect of the gears slicing through the oil and squeezing oil out from between gears.

 

 

I had temp gauges for both gearbox and one in the engine sump for several cars.

On the road and especially on the track, engine oil temps are higher. I am not sure if this applies to naturally aspirated vehicles and bikes as well.

 

One reason why theres a radiator for the engine and not one for the gearbox, other than adding a transmission oil cooler.

Another reason for longer service intervals for transmission gear oils compared to engine oils. Lower operating temp, oils holds together better=less frequent change required.

 

No matter how expensive the type of engine oil I have tried, after just 2-3k km, the oil is black as tar compared to the original dark golden colour poured in.

Transmission oils on the other hand never ever reach that stage of abuse

 

Maybe its just me

[George]

Originally posted by berukblue@May 4 2005, 01:11 PM

Hey...i'm definitely interested in your arrow...do you think it would provide beter performance than my arrow-inside-milo exhaust? I noe it would give better ground clearance at the very least....

Hi mate, I dont know anything about milo, but after i installed arrow i found out why people say that aprilia got power after 8K rpm. Bike runs better with arrow and it very very light.

[berukblue]

Originally posted by George@May 4 2005, 08:33 PM

Hi mate, I dont know anything about milo, but after i installed arrow i found out why people say that aprilia got power after 8K rpm. Bike runs better with arrow and it very very light.

Well at the very least it would provide better ground clearance and is lighter right? So u got pm

[karmatrix]

Originally posted by warren84@May 4 2005, 07:02 PM

ya i'm, using motul 600, and also motul gearoil... can reccomened pleasure workshop to u... need help just call mi~~ u living where

im living woodlands...where is this pleasure motor? can enlighten? thks!

[lacrimosae]

DIY Session X*

15 May 2005 Sunday

11am - 3pm

Blk 21 Joo Seng Road

Bring your bikes, solvents, and egos

Water, cloth, soap provided

 

*Where X denotes a variable. I've forgotten how many DIYs I've organised this year...

 

Place names below.

1)

 

http://img.photobucket.com/albums/v260/lacrimosae/Misc/DIYaddress.jpg

 

Guys, get rid of those clingy girlfriends and get your hands dirty for once. We dont want to hear about any of that SNAG sh*t. (ok, I am a bit of that too) But lets get together and pretend we're a bunch of testosterone-driven grease monkeys dying to take our babies apart with wrenches and that's all we want to do for a coupla hours next weekend.

 

Clingy-ness is the number one sign of insecurity in a relationship.

Ditch the ***** and ride.

You can always crawl back on your hands and knees and beg for forgiveness later, after some bonding with the rest of the guys... Come on, you know you want to...

[cheng_xi07]

Originally posted by _wacko_@May 4 2005, 05:06 PM

yep...

my clutch cable burst..

so i send for a tow truck down to ideal..

apparently they do not have the stock yet..

so i have to keep my baby there first..

maybe i have... check it out.. hahaa....

[cheng_xi07]

hi all.. after the bike breaking i sold

battery

signals

rear shock

rpm meter

fork

valve

 

still ups for sell

-the front digi meter

-valve motor

-reed valve (don know have a not)

-34mm carb

-erp

-mirrors

-tyres

-rims

-brakes system

-magnetic coil

-block

-cylinder

-main wiring

-full set fairing w/o the head (right side fairing connections parts spoil, have to fibre glass urself, with front n rear hugger)

-accelerator cable (eyz thinking)

-2t pump (eyz thinking)

-and any other thing u can think of other den the head fairing n speedo meter

[muser]

Must...resist...temptation...to make fun of lacrimosae...must not...be tempted by...easy target...must focus on serious topic...

 

My Broquet fuel-saving/performance-enhancing device review:

I got this on the strength of Lawrence's (lacrimosae's) recommendation, and his claim of getting an extra 20km on a full tank. I didn't recall him mentioning any performance increase, so I didn't expect any. I was only looking for better fuel economy.

 

I haven't noticed better fuel economy yet, but instead have noticed something else - a very noticeable, undeniable increase in torque throughout the rev range. That's right, from bottom to top. Somewhat similar to running a rich jetting, except the top-end doesn't seem to be compromised in the same way.

 

And in case you're wondering if I was riding in the middle of a hot afternoon and therefore effectively running rich (intake of lower density hot hair), I was riding in the cool evening.

 

Fuel is just plain old SPC 98. The effects of Broquet are supposedly more noticeable on lower octane fuel (RON 95), which makes the performance increase even more unexpected.

 

Strange but true.

 

Note: For those who haven't heard of Broquet, it's a fuel catalyst in the form of a wire-mesh-covered tablet that you drop into your fuel tank. Costs about $50 from MotorX (230 Tanjong Katong Rd), which sponsors this forum. I'm not related to them.

[cheng_xi07]

btw my tyres r front metzler (8 mths old) rear gpr 70 (5 mths old)..