Slowrider
Member
I've got a 1993 Seadoo spx with the white motor. It runs great will do about 45-47mph. Pops out of the hole like a champ. Compression readings (cold with WTO) are 130psi in each cylinder. Ski set for about 12 years, I've run seafoam in it a few times, but compression stays at 130. Plugs are gapped at .024 and running 92 octane gas in it. This ski i got for my daughter and plan on keeping it. My question is: should i do an upper overhaul, or let it slide for a few a bit longer? I don't want to fry the engine. My compression tester is new and it seems to be of good quality. It is not premix and the injector is working fine, plugs look good and are a consistant brownish color, and ive been using Amsoil in it as i do all my engines.
