Questions about valve clearances.
Last weekend resulted in the careful removal of the valve cover on my FXR and from that virginity busting experience I've got some questions!
Valve clearance figures for a 2001 Suzuki FXR150 are:
Inlet: 0.10 to 0.20
Outlet: 0.20 to 0.30
From memory inlet measurements were: Left = 0.15, Right = 0.13. Outlets were respectively the same.
This means they're fine and still within the range specified by Suzuki.
Other info: cam chain runs on the left hand side and left is viewed as if you're sitting on the bike.
Here are my questions:
Given both valves were equal in the factory, why is one clearance gap bigger than the other?
They've both operated under the same conditions and mileage so should be equal.
In reference to the 0.02 difference, why are both the left inlet and left outlet valve clearances larger than their respective right counter-part by the same amount?
Is it because they're both closest to the cam chain end of the cam shaft?
In which direction of the range i.e. 0.10-0.20, will the valve clearance gap travel as more mileage is put on?
I'm guessing towards the greater figure. Can it go in either direction?
Thanks.
90% of the time spent writing this post was spent thinking of something witty to say. It may have been wasted.
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