When you say...
Quote:
Originally Posted by
ram
*actually when i compere the pin position in the picture to the pin in my motor, looks like it is upside down?
the grooved side of the pin is on the upper side in the picture, and in my motor is down side ?
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...do you mean the first video shows the position of the decompression shaft when you pulled of the cam sprocket?
If it is, then I think you have found the problem. It looks like the decompression shaft was inserted 180 degrees out which would mean the lobe on the end of it wouldn't have been acting on the decompression pin (and it would just be rattling about doing nothing) or even causing it to act in the opposite direction?
The lobe on the end of the decompressor shaft should be acting on the upper end of the slot in the pin, pushing it out of the crank lobe (and opening the exhaust valves slightly) when the camshaft is stationary. As soon as the camshaft starts spinning the centrifugal weight overrides the spring and turns the decompression shaft anti-clockwise, causing the lobe on the end to act on the lower part of the slot in the pin pulling the pin inwards away from the face of the exhaust cam lobe.
By the look of the second video (assuming you took this after the first?), you have the decompressor shaft located correctly. The slot that operates it should be pretty much level with, or slightly anti-clockwise of the notch in the camshaft end.
The only thing is, I'm not quite sure how the weight could have even been engaged with the decompressor shaft at all if the shaft was 180 degrees out?
Anyway, from where I'm sitting, everything looks in the right position in the second video, so give it a go and see if the motor is quieter. Just make sure that the decompression shaft is engaged correctly with the pin, and make sure the weight is engaged correctly in the slot on the outward end of the shaft.