hey yall thanks in advance, i currently have a 2003 Yamaha 70hp outboard in the shop, came in for poor running condition, unit would start and idle rough, when advancing the throttle in neutral or under load it would not advance. found fuel ties missing leaking fuel lines, corrected all those issues and still have the issue, we replaced the cdi push to open box, and restarted the unit still has the same issue but if you remove the two yellow wires connected together coming from the cdi push to open box the motor sounds alot better but still not right but will throttle up. Appreciate any and all recommendations and insight.
Parts that where replaced.
Spark plugs.
Cdi
Carbs gone through and rebuilt with all new gaskets
fuel lines and fuel ties.
Compression #1 120psi #2 120psi #3 115psi
Cylinders have some scarring but nothing terrible. walls still have cross hatching,
Parts that where replaced.
Spark plugs.
Cdi
Carbs gone through and rebuilt with all new gaskets
fuel lines and fuel ties.
Compression #1 120psi #2 120psi #3 115psi
Cylinders have some scarring but nothing terrible. walls still have cross hatching,
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