I have been using the boat for two seasons but it was hard to start last season. Once running it ran fine (about 30mph WOT on a 17' trihull) I had work done about 3 years prior and they said it has good compression at 110psi. I have replaced all electronics on motor (CDIs, rectifier, coils) rebuilt the carbs, new fuel lines, new fuel pump, new prime bulb, and new spark plugs and wires. This season it ran fine for three outings on the water then, this last time it ran fine until I turned it off. I thought it was electronics because it seemed like it was not running on all cylinders. I tried squeezing the prime bulb and choke when it lost power but this made no difference. I took the carbs apart again and inspected but found nothing wrong. I replaced a new coil and spark plug because one cylinder looked oily compared to the rest. I then tried it on the water again and it ran fine until I shut it down for a while and then started up. I had no power but it would fluctuate from no power to normal power very intermittently. I then pulled the gas line and let the carbs run dry and the motor died. Once I primed and started again the motor was fine. When I got home I wanted to inspect the reeds; which looked OK. Checked the spark, which was fine. The spark plugs all looked the same with a dry brown color. I then checked the compression and notices that all cylinders were at 80psi. I am thinking this is why the motor was hard to start. It always idled fine but need to find out why the power loss.
Any ideas? One other question- are the remanufactured power heads the way to go if I need a ring/cylinder job?
Any ideas? One other question- are the remanufactured power heads the way to go if I need a ring/cylinder job?
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