kevbo's latest activity
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kevbo replied to the thread Setback pumps?.Stator vanes can be shorter when more of them are used. You want the least amount of volume between the impeller and nozzle. The... -
kevbo replied to the thread What causes this on cylinder walls?.My solution for preventing rust is cheap TCW3 oil and blowing it out until the head gets too hot to hold onto. Then I leave the hood...
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kevbo replied to the thread Billet stainless props. Has it been done?.I know a cheaper way of making propellers is welding blades on the hub. This would probably work for iimpellers as well. Investment...
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kevbo replied to the thread Other 1989 WaveJammer (I need a program).The bed plates you need are easy to spot since they don’t have splash cover mounts on them. A 650-701 is an easy swap and works kind of...
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kevbo replied to the thread Other 1989 WaveJammer (I need a program).Thats a nice one. I think theres more of these around than there are old Superjets. I have one that has been a very successful 701/144...
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kevbo replied to the thread Stuffed intake..That epoxy job would probably be beneficial if smaller carbs were used. You want to make the carbs venturi have the least area. The...
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kevbo replied to the thread Jetting advice/1998 Superjet.The stock exhaust has no tuning so the main jets will be smaller than an aftermarket pipe would require. Tune the top carb screws just...
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kevbo replied to the thread tips for adjusting the popoff pressure.Practice on a twostroke leaf blower. They tune very similar to jetskis.
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kevbo replied to the thread tips for adjusting the popoff pressure.With a single carb you can butcher the seat size and spring all you want. There is no second or third carb to match it up to. I have...
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kevbo replied to the thread Mid-Shaft Alignment/ shimming.The idea is simply to make sure nothing is pulled into a bind when the bolts are tightened. Using shims is one way to fill gaps. Most of...
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kevbo replied to the thread Mr trump good for usa?.Im not sure Trumps policies are very benevolent since he and Musk are picking winners and losers. I need to see changes that are near...
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kevbo replied to the thread Freshly Rebuilt Engine Gone, assistance in determining failure mode.I do.
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kevbo replied to the thread Freshly Rebuilt Engine Gone, assistance in determining failure mode.FWIW Kawasaki hot cylinder is usually the front, Yamaha is usually the rear. Air leaks are a possibility but they have to be more...
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kevbo replied to the thread Freshly Rebuilt Engine Gone, assistance in determining failure mode.One cylinder will always run hotter on single carb multi cylinder engines. With two strokes, you can never blindly follow others jetting...