kevbo's latest activity
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kevbo replied to the thread Carburetor (specs) Database: SuperJet and Blaster 1.All good pipes will make the power either on or off. If you raise the popoff you will also need to use a larger pilot to have the same... -
You dont have to do glass work. I did it on mine. You have to clearance the pump and the ride plate. Then order a 155 pump shoe and...
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kevbo replied to the thread Want to Buy Cones Cones Cones.The coffmans Yamaha 650 pipe is shorter than their Kawasaki pipe in order to make any rpm with the Yamaha 650s 172 degree exhaust port...
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kevbo replied to the thread Want to Buy Cones Cones Cones.I have wrapped a WC cone with wetted 2” fiberglass tape until it was 5”. It worked perfectly for years on my 650 coffmans pipe. I called...
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kevbo replied to the thread Superchicken Carb Specs.The stock F/A isn’t restrictive. Tune the top screw to find peak rpm then open it a little.
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kevbo replied to the thread Super Jet B Pipe Cooling.To answer your question, as long as the stinger was restricted, a bypass is not necessarily needed in that line. It could be at the head...
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kevbo replied to the thread Super Jet B Pipe Cooling.The actual pipe needs to get hot in order to make power. The rest of the exhaust needs to be cooler so it doesn’t heat up the engine bay...
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kevbo replied to the thread Super Jet B Pipe Cooling.Flow control valves became a thing long after skis became fast. Everyone, overnight, decided they had to have one. Shutting off the...
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kevbo replied to the thread Rebuild Struggles.The gauge can be checked against any known gauge.. Its the schrader valve thats the wild card with every compression gauge. Thats why...
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kevbo replied to the thread Rebuild Struggles.I have burned pistons with “pump gas” compression. Make sure your ignition timing isn’t too advanced and the carbs are set rich of peak rpm.
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kevbo replied to the thread Other 1989 WaveJammer (I need a program).A sheet metal gasket will prevent bolts from loosening since they don’t collapse. Someone on eBay is selling new OEM style exhaust...
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kevbo replied to the thread Fx1 144 conversion billet baby billet.At slower speeds they are all easy to stay on top of. Once you get over 35-40mph the fx1 and old 750 start feeling narrow. These skis...
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kevbo replied to the thread Fx1 144 conversion billet baby billet.If you are older/heavier, the 750sx is like a slightly larger FX1. Plus you could buy and overhaul the 750 for the price of a POS FX1.
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kevbo replied to the thread Other TPE billet 1200 cases.If engine life is important then an expensive test program is required. Riders don’t care about that anyway. All they need to make a...
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kevbo replied to the thread Jet ski dyno.The pump can usually load the engine if you tie the ski to a trailer and sink it up to the hood seal. This is a great way to initially...
