Help me to find out what the heck it's wrong with my GS650G engine

[Gorminrider]

could his cam chain be off by one link? or is it that this motor wouldnt turn over with just one link wrong . It'd be nice to find something easy...

[gfpunto]

could his cam chain be off by one link? or is it that this motor wouldnt turn over with just one link wrong . It'd be nice to find something easy...

I checked that a million times and it always stays at 20 pins from 2 (ex) and 3 (in).

[Nessism]

What about alignment of the 1 (ex) mark? Is it pointing to the gasket surface when the 1-4 T mark is aligned on the crank?

[Gorminrider]

I checked that a million times and it always stays at 20 pins from 2 (ex) and 3 (in).

I believe you! it's just a thought and I don't want to distract you still, on my 400, I recall I actually used the side plates =a complete link between the marks teeth rather than counting pins and it helped. I got it wrong by one on my 400 the first time and the bike turned over just fine but had no compression ...ie: 10 links between -it kept "moving" x 1 when I toightened the shells down on the camshaft......I was looking through my 650 manual and I WISH I could find a diagram like this in it...THIS IS MY 400's diagram... the Haynes manual has a different description

[Steve]

I checked that a million times and it always stays at 20 pins from 2 (ex) and 3 (in).

Gorminrider's picture says a LOT. I can't tell you how many times I counted pins between the cam arrows and it was always "off" enough to run poorly.

When I realized that I was using the pin over the #2 mark on the cam as "pin zero" and not "pin ONE", everything worked well.

That picture is a great example of where to start counting.

.