Spiffy1996
Member
So picked up two 94’ XP’s earlier this season for a steal. I got two running skis, double trailer, a spare hull, a complete spare engine, and a ton of spare parts. They were running but needed some love. Both skis had around 120-130 PSI compression in the cylinders, I know not ideal PSI but should be enough to have a lil fun for the season. Got them sorted after throwing the basics at them (new fuel, fuel lines, filters, batteries, spark plugs, etc) and a few test and tune runs and took them out a handful of times after. Well last week the one went down on power after a half hour or so of riding and once it started losing power I slowed down to figure out why and it shut off and wouldn’t fire back up. Got it home and compression was around 115 PSI on the PTO cylinder and 85 PSI on the magneto side. Pulled the motor out and discovered the oil injection pump had failed. Fortunately I had the spare engine to put in to make it the rest of the season. Compression tested that spare motor as it was a “good engine” by word of mouth by the seller so wanted to see before I took all that time motor swapping to find it has low compression too. Found out the spare motor has 130-135 PSI on the cylinders so again not perfect but rideable. This motor I am going to convert to premix and delete the oil injection pump and probably do the same with the other ski as well once I successfully delete this ski. Just curious for those that have deleted the oil injection pump did you guys take out the factory oil tank and put a smaller one in since I know you need to keep an oil reservoir to lube the rotary valve or just keep the factory tank? Those that kept the factory tank what did you do with the line that would supply the injection pump? I’m assuming just Tee it into the line that goes to the rotary valve?
More importantly I have a problem with the stator on the new motor I’m dropping in. The old motor had five wires coming from the stator and this new one only has four? The wire I’m missing on the new motor is the white one. I’m assuming I can just pull the fly wheels and swap the stators over from one unit to the next? They’re both 657x motors so not sure why I couldn’t do that?
Any input or information is greatly appreciated.
More importantly I have a problem with the stator on the new motor I’m dropping in. The old motor had five wires coming from the stator and this new one only has four? The wire I’m missing on the new motor is the white one. I’m assuming I can just pull the fly wheels and swap the stators over from one unit to the next? They’re both 657x motors so not sure why I couldn’t do that?
Any input or information is greatly appreciated.
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