--- In
DSN_KLR650@yahoogroups.com, "bob_in_cr" wrote:
>
> hunted just about everywhere for the timing marks to set the
> counterbancers in alignment with the piston TDC.....Tried kawa here
> but they have given me two different answers....needless to say, i
> don't trust either answer they gave me. thank you
> Bob
> Costa Rica
>
Bob,
I'm going to try to describe it in text. Someone might know where
there is a photo onlinne.
Engine at TDC. If the rotor/flywheel is removed, aim the keyway in the
crankshaft up the centerline of the cylinder, as close as you can by
eye. Balancer chain is off, right? Chain guides for the chain are off?
When you remove them, use some heat on the bolts first to soften the
loctite. Some of the bolts are very soft, and break very easily. With
the engine at TDC, the front weight you can see should have the round
portion down, and the part of the weight that looks flat up. Look on
the shaft the weight is attached to - you should be able to see a
center punch mark, or it might be on the weight. This should appear to
be approx the center of the "upper flat" portion of the weight. You
can't see the rear wieght, so just look for the center punch mark on
the shaft. This also needs to be as "up" as possible, it will probably
be a little to the left of up when we're done. Now look for the plated
links on the chain - there's three locations where they are plated
silver color. Whent the chain is installed properly, there will be 2
plated links bracketing the marks on the front and rear balance
shafts, and one link lining up with the punch mark on the crankshaft
sprocket. Hope this helps.....
The balancer chain marks, and the weights, line up every 9 revolutions
of the chain, IIRC. The weights will line up every engine revolution,
but the chain doesn't complete a revolution with every engine
revolution. The sprockets are 18 tooth, and the chain has 70 links.
So, every engine rev the chain moves 18 teeth. So, if the chain goes
around 9 times, that's 630 links, also 35 engine revolutions.
all the best,
Mike