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Mend Honda 9.9hp 4 Stroke

how to tune up 9.9hp honda 4 stroke outboard?

Have replace spark plugs (properly gapped) also repaced fuel filter.It starts fine but doesnt run well at full power.

Tony
June 2008
HondaHonda 9.9hpBoats, PowerboatsHonda 4 Stroke
just a hunch,check the valve clearances.

caine
June 2008

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Honda 9.9hp Outboard Tuning & Repair