Trials Australia Forums

Posted: **Tue Jun 10, 2008 1:24 pm**

Could anyone help with timing on a TY175. E# 525
1-How may degrese before T.D.C should the points open.
2- Do any TY's have any timing marks on the flywheel.
3-What points gap would you suggest.
Thanks heaps.

Posted: **Tue Jun 10, 2008 8:13 pm**

There are no factory timing marks.
Yamaha specify piston movement (1.8mm) BTDC (not degrees of rotation).
I found that 1.8mm represents 20-22mm on the outer circumference of the flywheel.
Recommended points gap is 0.3 mm to 0.4 mm

Regards
David

Posted: **Thu Jun 12, 2008 9:49 pm**

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