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  1. WFO Speedracer

    Other 760 Yamaha with dual 38's

    I am also going to say that there are external factors such as porting , pipes , compression , different ignition systems and pump load that determine whether it will pull off the bottom better with 38's or 44's but a back to back test would tell us what pulls better on your ski.
  2. WFO Speedracer

    Engine Symptoms

    I believe in supporting those that support the sport but at the same time I like to support local guys when I can, where I am at you can't because there aren't any , you are lucky you have someone reputable that is close enough to drive to , I will probably be using Paul instead of sending my...
  3. WFO Speedracer

    Engine Symptoms

    You use the rings for whatever size bore you have, if it's 81.00 mm the use 81.00 mm , if it's 81.25mm then use 81.25 mm rings, the only time you use oversize rings is when you bore the cylinder to the next oversize , I will be very surprised if the wrist pin bearings are your issue , they...
  4. WFO Speedracer

    Engine Symptoms

    they are defiantly not sold as a matched set , order , install and done, I would give it a hone and replace the rings minimum , you might want to go ahead and replace the crankshaft seals that way you can spin all the bearings by hand and know that they are good as well.
  5. WFO Speedracer

    1990 JS440SX

    As I said before BR8ES plugs were fouling out in brand new machines here , when I worked at the dealership , I serviced out a brand new ZXI 1100, I told the owner I needed to swap out the plugs in it, he said we are not doing that run what came in it , he has a warranty , I said fine but you get...
  6. WFO Speedracer

    Engine Symptoms

    Glad to hear it maybe mow you will get some answers.
  7. WFO Speedracer

    1990 JS440SX

    Run BR7ES plugs or B7ES , the 650's , 750's ,900'S and 1100'S never liked 8's , we always had to swap them out or it fouled them out , I used to pull them out of brand new skis and swap them out they fouled out so bad . Your wires may be shot but a set of b7es plugs and some non resistor plug...
  8. WFO Speedracer

    WTB kawasaki x2

    I have stopped by several times , his truck was there no one answered the door, the last time I stopped by I left a note and my business card , not much more I can do , ball is in his court .
  9. WFO Speedracer

    Engine Symptoms

    All this external sleuthing you are doing is great , wonderful , fabulous and all of that , it is getting you absolutely nowhere .
  10. WFO Speedracer

    Good couch for wife

    Luck is defiantly a factor for sure , most of what I have been doing here this year is getting older skis that have sat for years running again , some have say 4 -10 years , I haven't replaced cranks seals on any of them so far this year and in the end they have all run out just fine , the only...
  11. WFO Speedracer

    Good couch for wife

    The engine will actually come out without doing all of that but yes I agree they are not easy to get the engines out of either way , I can pull the top off one of those blindfolded by now , not that big of a deal really , luckily you won't have to do that very much , as on all Yamahas that are...
  12. WFO Speedracer

    Good couch for wife

    I don't think I have ever replaced any electrical stuff on one other than a starter here and there , a bunch of starter solenoids, but that's across the board on Yamahas and one stator on a ski that had the starter clutch blow up and destroy it , maybe you got a bad run of them IDK , but I can...
  13. WFO Speedracer

    Good couch for wife

    If you will notice I didn't include anything with a Yamaha 800 or 1200 power valve engine , there are two types of Yamaha power valve engines , those that the oil line has come off of or the power valves have dropped and those that are about to have it happen , if any kind of decent mechanic...
  14. WFO Speedracer

    Good couch for wife

    I believe you are referring to 99 and later power valve engines in which case I agree , the 98 model however has a 65u non power valve engine in it , I also have to disagree with your evaluation of Kawi couches , out of all the brands I work on Kawis the least , they are damned tough . To me...
  15. WFO Speedracer

    Good couch for wife

    That 98 Yamaha is an excellent machine with a non power valve engine which is what you want ,
  16. WFO Speedracer

    LSP S1 READY TO RUN

    That is very good to hear , it could be a benefit to everyone if they get the quality up to snuff.
  17. WFO Speedracer

    Maximizing Velocity in Two-Stroke Engine Intake Manifolds: Why Speed Beats Volume

    I try to speak on subjects that I know or have had first hand experience with, this is one of them for sure , I had one of the first 550 reed engines in the states because I ordered all new parts off the microfiche when it came out , which is before the ski actually hit the showroom floor. They...
  18. WFO Speedracer

    LSP S1 READY TO RUN

    Knowing what I know after a few years of using SBT starters and other electrical parts and having them quickly fail I had to go in a different direction . As most here know you can have the best engine on the planet but if it won't start and run consistently what good is it , I think a lot of...
  19. WFO Speedracer

    Other 760 Yamaha with dual 38's

    Yep they are defiantly thirsty.
  20. WFO Speedracer

    LSP S1 READY TO RUN

    I will go along with the motor parts being cast and or manufactured by SBT , my question and I believe this is a legitimate one is where are the electrical parts coming from ?
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