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Old February 12th, 2017, 04:37 PM   #9
Bluberryrain
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Name: Nick
Location: USA
Join Date: Apr 2016

Motorcycle(s): 2009 Ninja 250r

Posts: 109
Quote:
Originally Posted by Motofool View Post
The crankshaft turns two times while the cam shafts rotate once.
The 2T mark only indicates that cylinder 2 is at top dead center.

There is a rotational position of the crankshaft (within 720 degrees of rotation) for which none of the cam lobes force the valves open by pressing on the valve.
If both spark plugs have been removed, there is no resistance from compression to easily find that spot.

I see no reason to have the cam tensioner removed during this operation, except for previously cleaning and lubricating the tensioner's mechanism, but I may be wrong.



Thanks, Hernan. Looking at your first attachment, my cam gears are in the opposite position. The line with EX & IN are facing each other on the inside, and my exhaust is up instead of down, and vice versa with the intake.

So, I should be able to turn the crank around until the cams look like the picture, and everything should fit- I think. Even if this isn't the case, as long as I start with the timing lining up, I can rotate the crank until both cams fit within that above-mentioned rotational position.
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