OT: Need Engine for Wave Runner
06-05-2002, 11:39 PM
#11
Platinum Member
Platinum Member
I'm not trying to rain on your parade, but a good 500 Waverunner in running condition is worth around $600. 40 horsepower and a flat hull that rides hard and porpoises badly in anything other than smooth conditions. 30 - 32 mph topend.
Several mfrs offer motors for those. SBT is one. WSM is another. A longblock will run several hundred $$.
A crank kit, 2 pistons and 2 sets of rings, and gaskets will run $220 or so not including labor or boring. In case you have never done a multi cylinder 2 stroke crank, they are not really easy to get apart and back together straight.
The 500cc Yamaha motor was derived from their 40hp outboard. It was a great outboard motor, but a questionable pwc motor. Broke a lot of cranks cause the motor was not designed to load and unload like a jet will do when Yammies are good boats (*with the exception of any of the 500 units and also the WaverunnerLX, a 650 variation of the sad Waverunner hull). A WaverunnerIII is a more stable, 38mph, 3 seater made since '90 and they can be found in running condition for under $1000.
Several mfrs offer motors for those. SBT is one. WSM is another. A longblock will run several hundred $$.
A crank kit, 2 pistons and 2 sets of rings, and gaskets will run $220 or so not including labor or boring. In case you have never done a multi cylinder 2 stroke crank, they are not really easy to get apart and back together straight.
The 500cc Yamaha motor was derived from their 40hp outboard. It was a great outboard motor, but a questionable pwc motor. Broke a lot of cranks cause the motor was not designed to load and unload like a jet will do when Yammies are good boats (*with the exception of any of the 500 units and also the WaverunnerLX, a 650 variation of the sad Waverunner hull). A WaverunnerIII is a more stable, 38mph, 3 seater made since '90 and they can be found in running condition for under $1000.
06-06-2002, 08:37 AM
#12
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USA short block, and SBT are two popular ones..
Paul, I just looked in my latest issue of watercraft world and a Yamaha 500 motor from SBT is 699.00 and it comes with a 1 year warranty. We just replaced my neighbors motor with one from SBT and it really is pretty convienient. You could buy all the parts from a dealer and piece it back together for about half.
I have a kawasaki ultra 150, 150hp and 68 mph. and the baja, the ultra is an absolute BLAST, The g/f takes the boat I take the ski and we have so much fun.. park the boat, and rip around on the ski..
So, its not the fastest or the best handling ski, have fun with it...
I have a kawasaki ultra 150, 150hp and 68 mph. and the baja, the ultra is an absolute BLAST, The g/f takes the boat I take the ski and we have so much fun.. park the boat, and rip around on the ski..
So, its not the fastest or the best handling ski, have fun with it...
06-06-2002, 08:51 AM
#13
Gold Member
Gold Member
If you don't want to pay for a rebuilt short-block check out Havasu Cycle & Watercraft . They are a watercraft salvage yard. Maybe they have a used one in running condition.
06-06-2002, 12:26 PM
#15
Gold Member
Gold Member
350 MAG in a jet-ski.
I'd like to see that myself. Doubt I'd be brave enough to get on it though. My 750cc, 80 hp Polaris does 50 mph and that's fast eough.
I'd like to see that myself. Doubt I'd be brave enough to get on it though. My 750cc, 80 hp Polaris does 50 mph and that's fast eough.
