Aprilia Riders

[mike1024]

did you change your plug to a lower heat rating? Your plug is NGK, but what is the plug spec? look at the numbers: B10EGV is a colder plug than B9EGV. if you changed to a colder plug, there is an increased risk of plug fouling.

 

did you change your battery, or not? maybe it's flat

can the starter motor crank, or is there no turning over at all? maybe the starter relay or the starter switch or the battery is gone.

how often do you ride, and for how long? maybe the battery is flat.

when you tuned your bike, did you get the mech to change jetting? maybe you are running too rich?

 

It is generally not a Good idea to run without a filter.

 

please try to type in consistent case and with proper spelling. I know it's hard, but please try.

[muser]

Originally posted by Jerertan@Mar 16 2006, 12:28 AM

my spark plug is NGK

 

Carb just wash 1 month ago + tune!!

 

spark plug 1 mont ago just change

If plug is 1 month old then likely spark plug fouled. 1 month is time to change already. Change new one and try.

[xxes123]

Originally posted by muser+Mar 16 2006, 01:00 AM-->

QUOTE (muser @ Mar 16 2006, 01:00 AM)

If plug is 1 month old then likely spark plug fouled. 1 month is time to change already. Change new one and try. [/b] christ : not everyone like us so crazy to change gear oil and plug faithfully every month or every 1000-2000km..   back fire : fuel/air ratio might be wrong   u should take out the plug see whether could sparks when u crank... most prob plug foul or wet .. quite common for 2 stroke.. if wet, use tissue wipe dry, put back , would be able to start after a few crank..   use NGk-B9or 8 EGV(it has anti fouling properties) try not to use size 10( too cold for road use foul easily cos of short circuit as too much carbon desposite as plug too cold to burn away the carbon) , NGK B8/9 ES also foul very very easy.. keep a spare plug under ur seat..

[xxes123]

maybe technical problems would be better address in the ARC forum... this thread also a bit toooooooo most of the time ... more liken to a outing and chat thread liao...

[MaTrIx87]

Originally posted by Jerertan@Mar 15 2006, 11:55 PM

SiANZZ~~~~

 

Bike cannot start, half way to Hougang at Temasake Poly!!!!

 

Hum!!!!

 

Start Plug change,engine oil changed...... Batt~~~~

 

some more push start got back fire!!!! can anyone tell me what happen!!!

now bike at work shop~~~~

 

just hope is not piston jam ba!!!

bro haha it sounds sooooooooo familiar.. im no mech, neither was i there when it happened but when it hapend to me wif the same symptoms it was the piston the rings doest expand tt well oreadi therefore not enuf compression impossible to start oni way to start is a very steep slope or a really good pusher push damn fast or hard till enuf compression is created den it starts n u muz maintain high rev even at a standstill or if u close throttle it will stall

[speedkills]

Originally posted by M@+r!X@Mar 16 2006, 01:49 AM

bro haha it sounds sooooooooo familiar.. im no mech, neither was i there when it happened but when it hapend to me wif the same symptoms it was the piston the rings doest expand tt well oreadi therefore not enuf compression impossible to start oni way to start is a very steep slope or a really good pusher push damn fast or hard till enuf compression is created den it starts n u muz maintain high rev even at a standstill or if u close throttle it will stall

andrew knows best... besides, he has donated quite abit to the world aprilia fund! like me!!

 

hahaa...andrew...how? 2a...RVF or 250? hehehe... i gian pgm lei....quick... tell me something bad about it...

[speedkills]

Originally posted by xxes123@Mar 16 2006, 01:42 AM

maybe technical problems would be better address in the ARC forum... this thread also a bit toooooooo most of the time ... more liken to a outing and chat thread liao...

yeah man.. this is aprilia chatters' club.

 

hey edwin...you really wan the pda? suddenly like ok again..haha..i jus saw at cash converter..$80 for exactly the same...but the condition sucks la..haha...i think if you really wanna take it, you can do without changing the batts le! everynight just charge ok le.

[MaTrIx87]

Originally posted by speedkills@Mar 16 2006, 02:24 AM

andrew knows best... besides, he has donated quite abit to the world aprilia fund! like me!!

 

hahaa...andrew...how? 2a...RVF or 250? hehehe... i gian pgm lei....quick... tell me something bad about it...

sry lah im not part of the donate to the aprilia fund member coz ppl hu do tt are those hu do up their bikes for me its UNWILLING donation to the aprilia fund coz if i dun donate it cant move! zz bad abt it ah the lights are rectangle, the pipes look weird it sucks petrol same as it sucks 2t if 2t run out piston jam. eh.. its smoky.. the 2t will choke u it sounds crappy.. eh... wad else..

[speedkills]

Originally posted by M@+r!X@Mar 16 2006, 02:57 AM

sry lah im not part of the donate to the aprilia fund member coz ppl hu do tt are those hu do up their bikes for me its UNWILLING donation to the aprilia fund coz if i dun donate it cant move! zz bad abt it ah the lights are rectangle, the pipes look weird it sucks petrol same as it sucks 2t if 2t run out piston jam. eh.. its smoky.. the 2t will choke u it sounds crappy.. eh... wad else..

wah lau....reading your post my brain piston jam liao.... shurcks...

 

eh when you can come out? jb lei...eat seafood..before my diet program starts...

 

[MaTrIx87]

Originally posted by speedkills@Mar 16 2006, 03:54 AM

wah lau....reading your post my brain piston jam liao.... shurcks...

 

eh when you can come out? jb lei...eat seafood..before my diet program starts...

 

i oso wan go jb leh few more daes can liao haha relax man!

[cheng_xi07]

long time b4 i post.. my rs250 has being lying for mths without riding.. i won be riding anymore le.. new lowest price.. 2.3k... still got close to 10 yrs coe.. Fn plate... contact mi.. 90210871...

[jazzyme]

Originally posted by speedkills@Mar 16 2006, 03:54 AM

wah lau....reading your post my brain piston jam liao.... shurcks...

 

eh when you can come out? jb lei...eat seafood..before my diet program starts...

 

i tot ur diet program started a long time ago?

[Jerertan]

firstly i not good in english!!! so forgive me

 

i ride until half then stalled de~~

 

then try to restart cannot restart le

[muser]

Originally posted by Jerertan@Mar 16 2006, 05:11 AM

firstly i not good in english!!! so forgive me

 

i ride until half then stalled de~~

 

then try to restart cannot restart le

How did it stall? Engine slowly die, or suddenly die? Before you engine died, did you revs go up? Did the bike suddenly feel like it braked by itself? Did you skid? After the engine died, are there still lights on your instrument panel, or no lights anymore? When you try to start your bike again, is the sound of the starter strong, or very weak like no power like that?

[jonathan543]

Originally posted by Jerertan@Mar 16 2006, 12:28 AM

my spark plug is NGK

 

Carb just wash 1 month ago + tune!!

 

spark plug 1 mont ago just change

 

engine oil just change 3 days ago!!

 

air box empty

 

 

hum!! my bike tow to work shop le~~~

(is that information good)

 

(I do NOt need TIs ( casue i come here to know!!! what happen to my BIke ------->

However, if you are here to look for people to commiserate with you, then, here:

aww, too bad, aprilia sucks. maybe you should bring it to FM or something.

well bro pls do list down wad are the sympthoms kos there're 101 causes for the engine to die off & unable to start again.

instrumental lights working? do they go off when the starter button is pressed? does the starter motor crank or there's simply no response? the engine died off when idling or when on the move? do check if u still have fuel in ur tank or the fuel tap is turned on. sometimes these do slip past our minds... and lastly, dun panic bro!

 

aprilia is juz like any other popular thai 2t bikes out there, juz dat not oni it looks gd & huge for its class, it's electric started for the rider's convenience. unfortunately it oso creates problems of the battery being drained away too fast & died off should the bike refuses to start due to other causes.

and try not to use headlight on the move! using pole lights might be sufficient as the main bulb drains the battery unbelievably fast, leaving u not having enough juice to properly crank up the starter motor again. if u need to use the headlight, turn it off when turning into the carpark, or few minutes be4 u stop & park ur bike. this ensures the batt is being charged sufficiently for an ez engine start again.

 

and for a quick fix, if the bike keep dying off after idling for a certain time, u can adjust the knobbed screw on ur carb. turning it either way the rpm would either come up or down. adjust for the rpm to go up abit. do take note as little as 1/8 turn can make a lot of diff, so adjust it, rev up & listen to the engine sounds after falling back to idling & make more compensation if needed.

 

PS- is there any reason for the idling rpm to be low? koz almost all the bikeshop i been to, after tuning my bike the idling speed was set so low dat either i had trouble starting bike, or the engine would died off after few secs of starting.

[muser]

Originally posted by jonathan543@Mar 16 2006, 09:43 AM

is there any reason for the idling rpm to be low? koz almost all the bikeshop i been to, after tuning my bike the idling speed was set so low dat either i had trouble starting bike, or the engine would died off after few secs of starting.

Yes, one good reason for a low idle speed is to prevent fouling. An overly high idle speed tends to foul spark plugs, in the same way that idling your bike for a very long time can also tend to foul your plug. Also, if your bike requires a higher-than-normal idle speed in order not to die off, and your block is a stock one, then it's an indication that something else is wrong (clogged hoses/jets, wrong jet sizes, torn gaskets, stuck/broken valve, etc).

[jonathan543]

Originally posted by muser@Mar 16 2006, 09:51 AM

Yes, one good reason for a low idle speed is to prevent fouling. An overly high idle speed tends to foul spark plugs, in the same way that idling your bike for a very long time can also tend to foul your plug. Also, if your bike requires a higher-than-normal idle speed in order not to die off, and your block is a stock one, then it's an indication that something else is wrong (clogged hoses/jets, wrong jet sizes, torn gaskets, stuck/broken valve, etc).

i'm not sure how does the correct idling rpm should sounds like, but it was like very inconsistant & slow, almost dying off. after i adjusted ard 1/8 turn, sounds more smoothly & normal

the yellow wire incident makes me wonder does the 2t moto gp bikes had exhaust valve in them? koz when moving off & at low rpms below ard 4k, the bike has absolutely no power & requires a higher rpm to even get a decent move off. but the power surge came sooner & sharper from ard 5k rpm onwards! damn shiok, if the bike dun have to stop along the way! but the exhaust sounds blardy sharp & high, not to mention loud compared to when the exhaust valve's functioning normally.

yo muser, can i have ur hp? can i sms u some doubts on the carb settings? heheh...

[muser]

Originally posted by jonathan543@Mar 16 2006, 10:12 AM

the power surge came sooner & sharper from ard 5k rpm onwards! damn shiok, if the bike dun have to stop along the way! but the exhaust sounds blardy sharp & high, not to mention loud compared to when the exhaust valve's functioning normally.

yo muser, can i have ur hp? can i sms u some doubts on the carb settings? heheh...

Perceived increase in power with power valve stuck in open position is almost certainly psychological. When we feel an increase in power, we think there's an overall power boost, when there's often merely a drop in low-end power while peak power remains constant.

 

My handphone's 97405630. Best way for tech issues is to post on ARC forum so several people can answer since I'm often stuck at work unable to SMS back. Second-best way is to email (muser-at-the-muser-dot-com) or Gmail-chat me.

[mike1024]

well, you can always check your rev counter. it should idle properly, steadily at about 1250 rpm +/- 100 rpm.

 

oh wait. you're riding the planet, with no rev counter, right? then you've to go by feel.

 

if the exhaust valve is stuck open, i think that it would tend to lean out your cylinder in the lower rev range. this would contribute to your hearing the higher pitched engine note and more rapid pickup

[mike1024]

Originally posted by Jerertan@Mar 16 2006, 05:11 AM

i ride until half then stalled de~~

 

then try to restart cannot restart le

Hi Jerertan

 

we are trying to help you, but cannot do a good job of doing so unless you provide enough description of what was going on. please take some time to go through the previous posts, and answer all the questions as fully as you can.

 

otherwise, all you'll get are all sorts of speculations, about your piston jammed/ dead battery/ etc, which is not going to be very helpful.

 

better still, post to the ARC troubleshooting section, so that you don't have to search through so many other posts before finding one that is relevant to your problem.

[mike1024]

ok, jerertan, i've created a thread for you at the ARC troubleshooting section.

 

you're free to do as you please, but i think you will be more satisfied and get a better solution if you post there.

[jonathan543]

thanks muser, i'll post some doubts soon heheh.... actually wad i meant is the power surge is felt ard 5k rpm onwards, instead of 7k rpm onwards by power valves. the peak power should be the same bah... since the jettings & mixture settings remained unchanged...

err yes mike, my planet dun have a tachno but i've installed a acumen rev counter in which i've programmed each led to light up at a presumed 1.5k rpm & shift light at 10.5k rpm. so nicely there are 7leds heheh... no way to noe if it's accurate but it should be consistant if the initial set up by the bike shop is done correctly. the mech used a monitor which displayed a frequency cycle linked to my bike's magneto coil(?) to see & reving up to let the rev counter learn when the rpm is at 1k & 3k rpm in the programing stage.

i oso read up the purpose of the exhaust valve staying close at low rpm is to richen up the cylinder so it produces more torque for moving off? maybe dats y when moving off wit the valve open needs a higher rpm in comparsion wit the valve closed.

and wads going on inside the engine when a bike's been over rev-ved? can it be made through correct jettings dat the engine'll be over rev-ved at a higher rpm?

and for my gear6 the rpm stuck ard 8k rpm refusing going up anymore. half clutching oso wun help. wads wrong wit it? is it possible to redline even on gear6?

[mike1024]

err yes mike, my planet dun have a tachno but i've installed a acumen rev counter in which i've programmed each led to light up at a presumed 1.5k rpm & shift light at 10.5k rpm. so nicely there are 7leds heheh... no way to noe if it's accurate but it should be consistant if the initial set up by the bike shop is done correctly. the mech used a monitor which displayed a frequency cycle linked to my bike's magneto coil(?) to see & reving up to let the rev counter learn when the rpm is at 1k & 3k rpm in the programing stage.

 

woah. that's cool. did it cost a lot of money? but shift light at 10.5? dunno what the mito engine redline is, but if it is anything like the RS125, 10.5 is cutting it pretty close, isn't it? what is the function of the shift light? to tell you when to shift, or is it a shift warning light - to tell you, when the LED comes on that it is pointless to hold the throttle open anymore?

 

in any case, nice but sorry, the precision is not enough for you to see the rpm variations or what the rpm actually is.

 

i oso read up the purpose of the exhaust valve staying close at low rpm is to richen up the cylinder so it produces more torque for moving off? maybe dats y when moving off wit the valve open needs a higher rpm in comparsion wit the valve closed.

 

when the valve is stuck open, the cylinder leans out, lean mixtures have the habit of causing a rapid surge in rpm with very little torque. (someone correct me if i'm wrong) so for the same throttle position, you'd get a higher rpm.

 

and wads going on inside the engine when a bike's been over rev-ved? can it be made through correct jettings dat the engine'll be over rev-ved at a higher rpm?

and for my gear6 the rpm stuck ard 8k rpm refusing going up anymore. half clutching oso wun help. wads wrong wit it? is it possible to redline even on gear6?

 

what's going on? damage?

your not being able to rev up past 8k problem has been with you for some time, right? the other time, in response to some suggestions made here and on ARC, did you do anything to the bike carburettion?

 

did you try dropping a gear when you're stuck at 8k? does the rpm pick up? then did you try shifting to the 6th gear? does that work?

 

would you like to bring this thread to the ARC forum?

[Jerertan]

Hum i jsut now go down to motor tiam

 

they told me my piston JAM,dunno block got anything annot

 

have any one know the price of going to JB to service my spoilt MOTOR

 

piston = rm:???

[muser]

Originally posted by Jerertan@Mar 16 2006, 01:46 PM

Hum i jsut now go down to motor tiam

 

they told me my piston JAM,dunno block got anything annot

 

have any one know the price of going to JB to service my spoilt MOTOR

 

piston = rm:???

Which motor tiam? Where? Which mechanic?

 

Are you sure you want to do your bike in JB? There are VERY few Aprilias in JB, so I don't know if the motor tiams there will be experienced in Aprilia. Plus, there are so many motor tiams here that can fix your bike. You tow your bike to JB already not cheap.