2006 Honda TRX680 Rincon Factory Service Manual, Page 517Get this manual
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IGNITION SYSTEM
Spark plug Timing hole cap 22 (2.2 kgf-m, 16 Ibf-ft) 10 N-m (1.0 kgf-m, Ibf-ft)
IgnitionMate peak voltage tester MTP07-0286 (U.S.Aonly) Peak voltage adaptor 0