Thread: DIY Belt Change
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Old 06-05-2020, 02:58 PM   #14
Luddite
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Join Date: Aug 2011
Location: Southampton
Bike: M1100evo
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Quote:
Originally Posted by rac3r View Post
I think I've slightly confused myself when it comes to setting the tension. I've read that each cylinder needs to be set to TDC when tensioning but I have a feeling this might be for the DS engines?
As Dave G said, with the horizontal cylinder at TDC power, the cam on the vertical cylinder will try to rotate under the influence of the helper springs, which would, (in theory), affect the tension when you're checking the belt.

If you use the cam locking pins, then you can check both horizontal and vertical belt tensions with the motor at horizontal TDC. If you're not using the locking pins, then rotate the motor until the vertical cylinder is at TDC power.

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