Help! Honda 110cc smoking.

**Quail** · 30th March 2007, 21:51

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, 21:54

Originally Posted by Quail

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

**Quail** · 30th March 2007, 22:00

How did I not think of that? Cheers mate, I'll give it a try

**smoky** · 30th March 2007, 23:10

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, 14:59

What colour is the smoke.... White or Black?

**Quail** · 31st March 2007, 22:21

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, 17:45

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, 18:09

Originally Posted by Quail

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?