Joined
·
21 Posts
Purchased a 1986 JS440 Last week. The seller started the ski on the trailer for only a few seconds. I drug it home. Compression is in the 120's and evrything looks intact. Took it to the lake. Starts fine, Revs up fine but only for a few seconds. Then dies under throttle. I can restart it each time but, it will only run if I have it full throttle. (It sputters and barely runs when doing this) If I let it set 10 minutes it will do the same thing.
I don't have a manual yet, but it looks as though the Ski is unmolested by it's previous owner. Hoses are good and appears to be in good shape.....
Here is what I have found so far. The Tank Relief Valve doesn't hold pressure and allows suction and pressure through in both directions. Could this be my problem. I'm under the impression that this valve is what pressurizes the tank and pushes fuel through the system. If I'm wrong please tell me.
BTW, I am unable to find a replacement before the weekend and have thought about using a windshield washer valve to substitute til the new one gets here. Is there any other temp fixes or ideas.
If there is something I'm missing, please advise.
I live in Wichita KS. Motorcycle Enthusiast, 2 kids. I have a Polaris SL780 for the kids to ride. The JS is for me to play.
Vesparider is in reference to my 2004 Moto Guzzi V11 Rossa Sport. Vespa=WASP. Guzzi was purchased by Piaggio that also owns Vespa..
The italians get it, some don't.
Thanks,
Richard Zimmerman
I don't have a manual yet, but it looks as though the Ski is unmolested by it's previous owner. Hoses are good and appears to be in good shape.....
Here is what I have found so far. The Tank Relief Valve doesn't hold pressure and allows suction and pressure through in both directions. Could this be my problem. I'm under the impression that this valve is what pressurizes the tank and pushes fuel through the system. If I'm wrong please tell me.
BTW, I am unable to find a replacement before the weekend and have thought about using a windshield washer valve to substitute til the new one gets here. Is there any other temp fixes or ideas.
If there is something I'm missing, please advise.
I live in Wichita KS. Motorcycle Enthusiast, 2 kids. I have a Polaris SL780 for the kids to ride. The JS is for me to play.
Vesparider is in reference to my 2004 Moto Guzzi V11 Rossa Sport. Vespa=WASP. Guzzi was purchased by Piaggio that also owns Vespa..
The italians get it, some don't.
Thanks,
Richard Zimmerman