08-26-2018, 10:26 AM
You hit the nail on the head- babied engines build carbon.
There is a head and pistons on Ebay from a 4k mile motor that is just as black as yours. Go look.
I think a lot of guys would be surprised if they opened their engine.
The bike has a lot of owners that only do 2-3k revs lightly. That will cause carbon buildup.
I'm a firm believer in giving an engine the beans fairly often- italian tune up, to literally blow out / burn off the gunk.
All that being said- I do not think the carbon had anything to do with your valve issue.
And on the bright side- you will be the first guy with the factory honda oversize pistons.
If I remember correctly that is like a whole 8cc.
There is a head and pistons on Ebay from a 4k mile motor that is just as black as yours. Go look.
I think a lot of guys would be surprised if they opened their engine.
The bike has a lot of owners that only do 2-3k revs lightly. That will cause carbon buildup.
I'm a firm believer in giving an engine the beans fairly often- italian tune up, to literally blow out / burn off the gunk.
All that being said- I do not think the carbon had anything to do with your valve issue.
And on the bright side- you will be the first guy with the factory honda oversize pistons.
If I remember correctly that is like a whole 8cc.