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Can I read YZ250 Ignition Timing and Detonation Guide on EtoBox?
YZ250 Ignition Timing and Detonation Guide by tfour2000 is a document available to read on EtoBox.
What is YZ250 Ignition Timing and Detonation Guide about?
This document provides guidance on using a dial indicator to set the ignition timing on a 1999-2009 Yamaha YZ250 motorcycle. It describes how to position the dial indicator, find top dead center, and adjust the timing to different advance specifications. Retarding the timing 1-2 degrees can reduce detonation, smooth the powerband, and allow for leaner jetting. The dial indicator also helps check for excessive clearance in the crankshaft or piston bearings.
- Author
- tfour2000
- Language
- EN