Question about 2002 Honda CRF 450 R
Hard start, back firing, sudden onset problem, valves? coil? replaced sparkplug but same.
Would that cause a rough idal?
Posted on Jun 14, 2015
Classic valve train issues. Sounds like the valves are tight. One thing that concerns me is the "sudden onset". Valves usually tighten over time.
Make sure you also tighten the cam chain as well.
Posted on Dec 27, 2008
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Posted on Jan 02, 2017
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