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  1. Yamaharider74

    stock injectors vs bigger injectors on a boosted apex

    Okay that machine of yours sounds like it rips pretty good engaging at 5000 ya wouldn't have any hesitation ,want to get mine running spot on one day I hope lol thanks for the info
  2. Yamaharider74

    stock injectors vs bigger injectors on a boosted apex

    Okay thanks are meaning when the guys notch the cam gears to adjust the timing ?i actually never checked that I will look and see maybe I will leave it at 13 lol it is a lot of fun what weights were you running in your primary and what did you do to your secondary /and why gearing I can't even...
  3. Yamaharider74

    stock injectors vs bigger injectors on a boosted apex

    hi and thanks ,for the info i will not touch the timing one thing is with running premium i am thinking about leaving the head shim out or is that ,maybe not advisable
  4. Yamaharider74

    Apex Maps Download

    any one have a pcv map for 6 pounds of boost
  5. Yamaharider74

    stock injectors vs bigger injectors on a boosted apex

    Okay well thanks a bunch for the info I appreciate it and now I will decide if to leave the 13 or go with the 6 and reinstall head shim I never thought of playing with the timeing to make up for the head shim being in there
  6. Yamaharider74

    stock injectors vs bigger injectors on a boosted apex

    Well I like the snap it has without the head shim with boost but maybe I should just leave it in as a fail safe , I just thought if I run 6 pounds of boost and good fuel it would be more usable on the trails without a head shim I was running 13 pounds of boost which is fun but thought maybe...
  7. Yamaharider74

    stock injectors vs bigger injectors on a boosted apex

    okay thanks for the info ,i wonder then if i should just leave head shim out and run 6 pounds of boost then see how things go
  8. Yamaharider74

    stock injectors vs bigger injectors on a boosted apex

    hi i have the bigger injectors in my sled its an 06 apex did have a head shim but want to take it out because have motor all apart and leave bigger injectors in and run less boost so i can run pump gas and have the snappier bottom end ,question is without head shim and using the bigger...
  9. Yamaharider74

    MPI supercharger pulleys

    okay thanks so is it safe to say at 6-10 pounds of boost/with mpi stage 1 supercharger with bigger injectors with no head shim would work good i like the throttle response without the head shim much snappier ,i currently had the head shim but i took my motor apart because it was down on...
  10. Yamaharider74

    MPI supercharger pulleys

    hello by upgraded injectors size injectors and where did you get them
  11. Yamaharider74

    Low compression on one cylinder

    Well I checked the cylinder that was low and the cylinder looked good piston ,rings all look good ,I then checked the cam shaft clearance and the valves on that cylinder are needing a valve adjustment they are to tight so will change the pills on those that was the intake valves, I then turned...
  12. Yamaharider74

    Low compression on one cylinder

    Okay thanks good to know I will know better for next time will purchase a leak down tester also
  13. Yamaharider74

    Low compression on one cylinder

    Okay thanks I will check that also
  14. Yamaharider74

    Low compression on one cylinder

    hi and thanks ,yes i was doubtful on the piston as soon as i pulled the head off the cylinders looked like new yet and all pistons looked good from the top side but i decided to pull that piston out that was down on compression and rings and piston all looked perfect also as far as the miles...
  15. Yamaharider74

    Low compression on one cylinder

    Hi ever since I started this project I have always had trouble getting the afrs at an idle to show any numbers like it was pouring to much fuel in but when driving it was good tons of power just at an idle it smelled like to much fuel no matter what I did with the programmer so I decided to do...
  16. Yamaharider74

    Low compression on one cylinder

    Thanks I will check the valves on that cylinder head gasket looks good
  17. Yamaharider74

    Low compression on one cylinder

    hello I have a boosted apex 06 with an 09 engine took a compression test and 3 holes are 120 the 4 hole is 60 it's supercharged with head shim ,bigger injectors , aftermarket fuel pump running 12 pounds of boost rings look fine but that cylinder looked carboned up or sooted up at top edge of...
  18. Yamaharider74

    Removing Supercharger Pulley

    Hello you should be able to zip that bolt out with a impact it will come out easy if you use an impact then the engine won't rotate as easily or it shouldn't
  19. Yamaharider74

    Seal crankcase halves??

    Yamabond 5 is the right stuff


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