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Quail
30th March 2007, 20:51
Hi all,

What could be causing a 4-stroke 110cc Honda Cub engine to smoke 15 mins after riding?
Can someone give me a list on what to do and/or check including how to set the timing again.

Cheers.

smoky
30th March 2007, 20:54
Hi all,

What could be causing a 4-stroke 110cc Honda Cub engine to smoke 15 mins after riding?
Can someone give me a list on what to do

hide the cigerettes and despose of all the matches. You could try putting nicotine patches on the head:done:

Quail
30th March 2007, 21:00
How did I not think of that? Cheers mate, I'll give it a try :p

smoky
30th March 2007, 22:10
I'm not familiar with that engine but - it depends on a lot of other symptoms like noise.
It could be oil leaking down the valve stems (normally smokes on start up) – you could try an additive that’s suppose to improve valve seal condition and it may help short term.

It may be rings - you could get a bike shop to do a compression test cold then take the bike for a run and test it again (or buy a tester yourself).

It could be a head gasket - but not likely.

newmanz
31st March 2007, 13:59
What colour is the smoke.... White or Black?

Quail
31st March 2007, 21:21
Black (I think). Not actually my bike but a friends, trying to help him out.

Also need to know how to set the timing on the engine.

Cheers.

Karitane pete
1st April 2007, 16:45
White Smoke = coolant leaking in the combustion chamber
Blue Smoke = oil leaking in the combustion chamber
Black Smoke = Fuel leaking in the combustion chamber (to rich)

have a look the carb float needle

smoky
20th April 2007, 17:09
Hi all,

What could be causing a 4-stroke 110cc Honda Cub engine to smoke 15 mins after riding?
Can someone give me a list on what to do and/or check including how to set the timing again.

Cheers.

Have you found the answer yet?