Took my cylinder head off. How does it look?
Posted October 09, 2010 - 09:46 AM
I've checked everything I can external of the engine and still not found the problem, so today I've stripped the cylinder head down to see if there anything wrong with the piston or the valves.
Although I've stripped loads of two strokes in the past, I've never messed with valves before. The head and valves look fairly OK to me, as far as I can tell, although there's a fair amount of carbon build up.
Anyone see anything obviously wrong here?....
Should I continue and take the valves out? Should I take it to a shop as it is and get the valve seats recut?
Thanks for any advice.
Posted October 09, 2010 - 11:47 AM
Posted October 09, 2010 - 11:53 AM
So you're saying my problem couldn't a sticking valve or somesuch?
Posted October 09, 2010 - 12:12 PM
If an engine starts to run poor at high speed, you know you have fresh fuel and a carb in good condition (needle jet emulsion tube not worn), clean air filter, new spark plug, the failure is often the stator and sometimes the coil.
I'd borrow a coil and test ride, if the problem exists still, I'd do the stator. I assume you've checked all connections and they are good. If everything was working fine, your bike would be running good. Something is amiss.
Posted October 11, 2010 - 04:31 AM
I've checked that part and it looks completely clear and clean. I don't know how I would tell if it's worn, which William suggests. It appears to be like new.
Posted October 11, 2010 - 05:22 AM
All it needs to be is a few thous worn and it will give you grief. I keep one on hand. Being it is so easy to swap, I pop it in to confirm if it is/is not a problem.
I doubt your problem is the coil.
I would of first tried a new emulsion tube (cheap part), then a stator, then a coil. But I'd first go over every single wire and switch carefully.
Posted October 11, 2010 - 09:33 AM
Posted October 11, 2010 - 10:12 AM