2006-2012 Honda TRX90 TRX90EX/X Service Manual, Page 100Get this manual

2006-2012 Honda TRX90 TRX90EX/X Service Manual, Page 100

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CYLINDER HEADVALVES
TROUBLESHOOTING
Eng ine top-end problems usually affect engine performanceThese problem can be diagnosed by compression test or by tracing engine noises to the top-end