Search results

  1. kevbo

    Why did yamaha ditch the FX-1?

    That may explain the use of a 440 pump.
  2. kevbo

    Other Plasma Spark Ignition

    It wouldnt be hard to install multiple spark plugs if you want to see if more spark is really better. Wide gaps and high energy is necessary for mixtures that are very rich or lean. Our engines run very rich at part throttle below the pipe. Hot ignitions improve this area the most.
  3. kevbo

    Other Plasma Spark Ignition

    Some of our ignition makers are staggering multiple sparks trying to clean up part throttle four cycling. It doesn't take much spark energy to ignite a "best power" mixture at moderate pressure. Another big problem for us is insulating a hot ignition in salt water.
  4. kevbo

    Other Plasma Spark Ignition

    MSD is as close as we get.
  5. kevbo

    Why did yamaha ditch the FX-1?

    I remember riding a new one in 94. It felt like a mini js750. Standup sales were declining rapidly at this time, 95 was the last year for many models.
  6. kevbo

    Freestyle The 2 Stroke Manifesto

    An emotional article.
  7. kevbo

    Yamaha crankshaft , 650 vs 701 why stamped different?

    They are great for 701s.
  8. kevbo

    Yamaha crankshaft , 650 vs 701 why stamped different?

    6m6 have slightly thicker webs than 6r7. the 650 coupler shaft was bored to save weight. 760 cranks have rods that are not machined and have sheetmetal wear ring to save cost. S
  9. kevbo

    Life before the GoPro

    Extreme vanity.
  10. kevbo

    Who is going to be the first to 3D print a hull?

    No need for a plug, just print the tool. Use conventional methods for the hull so you can take advantage of directional fiber.
  11. kevbo

    Surfriding Too much power for the surf?

    Power equals altitude, how high do you want to go? Will you or your hull survive a 40' landing?
  12. kevbo

    Why wont my ski start without the primer? Fixed*

    The bottom screw controls fuel flow at idle. Tune idle mixture well rich of peak rpm on the trailer and it will be perfect on the water. I have had a carb that would idle for about 30 seconds, quit, and need prime to restart. The cause was a missing main circuit check valve. Its that little reed...
  13. kevbo

    If there was a oem hull 800 freestyle class who would compete

    And the winner is whomever can do the most rolls in 2 min.
  14. kevbo

    If there was a oem hull 800 freestyle class who would compete

    They want to maintain the image of current standups. I drew some plans for a 60" hull but couldnt keep the look after I made room for everything. In fact it looked really weird but would be easier to flip.
  15. kevbo

    If there was a oem hull 800 freestyle class who would compete

    The only way to make freestyle cheap is by giving flips and rolls no score.
  16. kevbo

    12 vein stator

    The Solas stator will prime faster and keep working longer in white water. If all your riding is on glass it wont make much difference. I found that a big hub impeller alone is worth 30% of the total improvement in hookup.
  17. kevbo

    650/X-2 40mm keihan polaris compatible to 650?

    You will need a 1991-1996 manifold. The 40 will need larger jets, start with a 170 main and an 85 pilot with stock popoff. Open the top screw 2 turns and lean for best acceleration.
  18. kevbo

    rickter vs. superjet floatation in surf

    The rickter slides a lot also.
  19. kevbo

    Optimal Impeller for Solas Mag Pump

    If your current setup is best once the ski is moving, it is a little over loaded. First bore the nozzle, then take a hammer to the trailing edges and raise them 3/16". It will pull as well as anything you can buy.
  20. kevbo

    Fort Worth, TX

    A big chunk of the Lewisville crew lives across the street.
Top Bottom