Smoke from exhaust.

[TheBeng]

Hi fellow riders,

 

I got a few queries I hope someone can help me out with, if exhaust smoke is occasionally white in color, whats wrong?

(and confirmed its not coolant leaking into engine block)

 

When I hold throttle, when the bike is stationary, at a high rev, there is smoke coming out from BELOW the bike, I highly suspect its exhaust fumes leaking from somewhere but I have been unable to find the leak. There is no additional burning smell or anything, and when I close throttle, there is no more smoke. Anybody knows what is wrong?

 

I already been to mechanic, but he says its normal (rain water going into the end can OR condensation inside in the tank).

 

For the smoke coming out from below the bike, he says its totally normal, some breather hole or something.

 

IS this true?!?! (cos it sounds weird to me!)

[coolone]

nope...

It's spark plug and balance tunning

[coolone]

mine before i got it. but now , no more..good normal.

[patrick1131]

sorry to hijake the thread...

want to ask isn't it harmful to engine when rev in neutral with high rpm???

[JbAtRaCeR]

Nowdays rainy season so its normal to have white smoke when warming up. But during a hot sunny day after warming up.Then you have problem.Its either you got coolant seeping into the combustion chamber or oil seal ring that is worned out,causing excessive engine oil burning in the combustion chamber.

 

Rev in neutral is ok,but revving in red zone on neutral is big no.

[skateboy]

the stock exhaust, the bottom portion got 2 holes. i heard they r for water to leak off. n water going into exhaust when raining is normal. so abit of white smoke for a while is ok. if for long, something is very wrong.