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Old September 28th, 2013, 06:32 PM   #156
The_big_dill
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Name: Phil
Location: Aurora, ON, Canada
Join Date: Jan 2013

Motorcycle(s): 1987 Ninja 250 custom gold

Posts: 218
So i took it all apart again and everything looks normal.

Timing was fine.

I re-adjusted the valves a little bit. And as before, the intake screw is as far out as it can go... I remember looking at it when it was out and the screw is bottomed out against the rocker. The only good news is that this intake rocker is barely meeting the wider clearance spec. Only 1 rocker is doing this.

I re-torqued all of the rocker nuts to 14.2 ft lbs. just to leave a bit of marginal error of the torque wrench.

As i was adjusting the valves, i happen to notice the chain had different amounts of tension as i would rotate the crank. This makes sense as the cams are engaging the rockers and putting tension on the chain, but at one point it was very loose!


Other points it was fairly tight:


Also, look at this intake valve spring:


Whats that white crap on it? Not all springs have that, only a few.

I tried measuring the chain again and i am getting stupid numbers, and yes, i did tension it when measuring. One of the numbers i did get was 1.9cm/3 rivets = 126.67mm/20 rivets.
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