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  1. 87sheerips

    300/440/550 My JS550 struggles.

    Ok gents, I am about done messing with these problems. 89 JS550, westcoast tank, stock everything besides K&N. Stock fuel line routing, water box, etc. After engine rebuild it took forever to get fuel primed, accomplished that and after some tuning she ran GREAT out of water, and ok but...
  2. 87sheerips

    300/440/550 Priming fuel system on JS550

    Hey guys, well we got the old 550 rebuilt and almost ready to rock. Got 120psi in each hole, great spark, all we are missing is fuel. I tried some ether to try and get fuel to prime but no luck yet. Any tricks on getting this sucker primed? Plenty of fuel in the tank, and i would like to get...
  3. 87sheerips

    300/440/550 89 550 lost compression!

    Well guys I have been riding the piss out of my JS 550 and something finally let go. It has 145psi in the forward-most cylinder, and 30 in the other. I took the head of yesterday to find everything in great shape. Head domes look new, pistons look good, head gasket looks good. However, the...
  4. 87sheerips

    300/440/550 Pulling flywheel in 89' JS 550

    Ok guys, this is the only part I did not have a tool for. Do you just use a 3-Jaw type puller for this? I know that we use a center type puller for the Banshee but this one obviously doesn't remove in that way. Please let me know, I need to get this flywheel off today. Thanks!
  5. 87sheerips

    300/440/550 JS 550 locked up.

    Damn, well I got this ski for a deal and I really thought the kid who sold it to me was clueless and it would fire right up after I spent an hour with it. I got it all cleaned up, dumped old gas, about to clean carb, etc... When I notice the output shaft is locked up. I didn't know you could...
  6. 87sheerips

    300/440/550 Picked up another 89' JS 550!

    Well, I couldnt pass up this deal. 89 JS550 for $350. has quick steer, Nice bars,gas tank mod to the inside if hull with oversize tank. It doesnt run but it did before it sat for a couple years outside. The engine is suprisingly clean, Ill get more pics but this is right after I picked it up...
  7. 87sheerips

    300/440/550 JS550 bogging out, seems like water box is full?

    hey everybody, looks like I finally found a solid forum to learn more about my machine. I have been involved in banshee forums for 10 years, and I finally got an old stand up. I love it so far, but it has some slight issues. Heres what I have: 89 440 hull with a newly built 550 engine...
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