As you can see in the picture (No.1), cylinder one has not admission at all.
That look as a valve problem, but then i decided to clean the
gas bump. After that, the bike was much better (No.2) .
I did the same test, two hours after and the problem persist
with the same cilynder (No.3).
Definitly, IMO the bike has a stuck or burnt valve.
I'm guessing here, but I don't think he is in Germany....maybe you are thinking of Martin? Pretty sure JH is in South Am., specifically Venezuela....just a guess.
Certainly something mechanical inside that cylinder, either a valve(s) failure to seat as you mention, hole in the piston, broken wrist pin or something similar. It is possible althugh probably unlikely, that a valve has a piece of carbon or other debris under the seat. At any rate, I doubt this is repairable without taking the engine apart, and I do not believe that can happen until the engine is removed from the bike. Sorry to hear this piece of news....
I do not know if you can make it work out financially but now that these bikes have been around for quite a while, there is always the possibility of finding a good or even great condition engine in a bike that was wrecked. ? Not sure what that would cost you in Germany, and I am not sure it would be cost- effective given the large amount of labor that it would take to swap engines.
The very best of luck going forward though either with that bike or if not, then hopefully with a nice replacement bike at a reasonable price.
Brian
Good News !!!!!
The engine was opened this morning (not for me) and it's fine (only 70000 Kms).
The problem is carbon on it that cause valve failure to seat.
At the same time the throttle body assy was removed for maintenance
Tomorrow I'l post some pics.
About the cost, here the economy is almost destroyed,
the inflation this year roud around 200%.
I have to pay just $250
Not bad, after all.
I'm breathing again !!!!!!!
Good News !!!!!
The engine was opened this morning (not for me) and it's fine (only 70000 Kms).
The problem is carbon on it that cause valve failure to seat.
At the same time the throttle body assy was removed for maintenance
Tomorrow I'l post some pics.
About the cost, here the economy is almost destroyed,
the inflation this year roud around 200%.
I have to pay just $250
Not bad, after all.
Great! How did the OTHER valves look?
I wonder if this is caused by poor or incorrect gasoline. Do you have access to the correct octane gas and with quality cleaners in it? If not, when you get it working again, you might want to consider running a high-quality additive like Techron through it regularly. I always run correct octane and generally think it is quality gas, but still run a dose of Techron through all my vehicles at least once a year. Cheap insurance.
The octane is correct, but the quality, at this moment i'm not sure.
At the same time i have installed a high rich map at the power commander, IMO that can be a reason.
I will use an additive regularly after this.
The octane is correct, but the quality, at this moment i'm not sure.
At the same time i have installed a high rich map at the power commander, IMO that can be a reason.
I will use an additive regularly after this.
A lot of carbon on it.
Wow!
But you still haven't answered my question... not really... is there a lot of carbon buildup on the valves in all the cylinders or just one? You posted a photo of two valves, but those could be two from the same cylinder.... Inquiring minds want to know!!!