[/CUDA]

Hi guys,
I decided to remove the decompressor,
and try,
I start listen din din din,
tryed tensioner cam chain, but no solve,
so remove all the head of the engine,
valve cover,
and cam.
Rocker arm, the side of the decompressor,
is in excellent condition,
the intake not very good,
the second rocker of the exhaust, not very good.
I can imagine low level of oil.
For remove the decompressor I have simply press the camshaft, right ?

 

[cataway]

i'll be surprised if it will even roll over with out decompressor

 

[/CUDA]

i'll be surprised if it will even roll over with out decompressor

at the end i decided no remove it and find a surprise....
cleaning the decompressor ( full of black oil) i see the spring that work correctly, and i start think not possible however, decompressor can make that sound,
so, playing whit cam,
finded a terrificant evidence!

WHEN WE DO VALVE CLEARANCE SETTING at Tdc

DECOMPRESSOR IS ACTIVATED, IF IT WORK CORRECTLY

AND SO, THAT VALVE WILL HAVE NOT 0,20
BUT ABOUT 1 MM OVER, 1,2
AND SO CLAC CLAC CLAC

I think that, also confirmed by italian forum of dominator 650, but however I am still reassembling all, will be the next engine starting to talk!

to be sure enabling decompressor when we do valve setting need to use a screwdriver to push the opposite side of decompressor, and the lobe which get rocker arm will be lower soon.

 

[/CUDA]

yeah, now after valve setting engine is very quiet, cause noise was rocker arm consumed, due to low level oil I think.
So every ride before turn off engine I wait 5 minutes, without accelerate and check oil because this quad drink oil !!!