My 1987 Ski Supreme began missing ALOT at top end under power. It has the screw type distributor which is apparently Prestolite. I purchased the Sierra 18-5275 tuneup kit. In discussions with a mechanic, he recommended checking the condenser connections as that could lead to the issue. Anyway, the manual has two different point spacing for Prestolite and Mallory distributors. My question is for the same engine, why would the point gap be different between the two distributor caps?
Reason for question? With the kit installed, it runs worse. really no power. Starts right up, idles ok sorta, but put it in gear and give it gas and it runs terrible - missing.
And yes I DID make sure that the plug wires are in the exact same position on the new distributor cap. That much I do know.
According to the manual, Mallory = 0.019 - 0.021 points gap and Prestolite = 0.014 - 0.019. I apparently mistakenly set the gap to 0.020 so tomorrow I'll reset to 0.016 for the Prestolite. Would 0.001 out of tolerance produce this type of result???? Checked spark on one plug and it seemed strong.
Thanks in advance. New to boats and this old boat while fun has just started this issue.
Reason for question? With the kit installed, it runs worse. really no power. Starts right up, idles ok sorta, but put it in gear and give it gas and it runs terrible - missing.
And yes I DID make sure that the plug wires are in the exact same position on the new distributor cap. That much I do know.
According to the manual, Mallory = 0.019 - 0.021 points gap and Prestolite = 0.014 - 0.019. I apparently mistakenly set the gap to 0.020 so tomorrow I'll reset to 0.016 for the Prestolite. Would 0.001 out of tolerance produce this type of result???? Checked spark on one plug and it seemed strong.
Thanks in advance. New to boats and this old boat while fun has just started this issue.