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  1. #1

    Is there room for alittle leaner! "pics"

    I just pulled these plugs out after running them the last 3 weekends on my 97xp with a spec1 and ppg level 1 I was running only 6850 max with a stock XO I just got it back from impros, I had them repitch it so I can pull alittle more rpm out but wanted to check the plugs first and they are both the same.. Is there room to run alittle leaner or should I run it the way it is with the repitch and then see how they look..
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  2. #2
    JayZ's Avatar
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    are these pics after a wot plug chop? if so, then yes they do look rich and you can lean it out some. if you checked them after idling around a bit, it won't give you a true reading of how they are running at wot.

    in my opinion they look rich regardless of when you checked them.

  3. #3
    Quote Originally Posted by JayZ View Post
    are these pics after a wot plug chop? if so, then yes they do look rich and you can lean it out some. if you checked them after idling around a bit, it won't give you a true reading of how they are running at wot.

    in my opinion they look rich regardless of when you checked them.
    should I be running 9's because that is what I got when I got the ski serviced last year when I first bought it, so I have been running 9's since then..
    and yes these are a wot pass with a maybe 8-10 idle in the wake zone..

  4. #4
    Brian Thomas's Avatar
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    Quote Originally Posted by 97XP800 View Post
    should I be running 9's because that is what I got when I got the ski serviced last year when I first bought it, so I have been running 9's since then..
    and yes these are a wot pass with a maybe 8-10 idle in the wake zone..

    Stick with BR8ES plugs gapped .022".

    What is your jetting? I would suggest 75 LS jets without accelerator pumps, 70 LS jets with accel pumps. the HS jets should be 150-155. The N/S, 2.0 w/ 80gram springs with aftermarket filters.

    -BT

  5. #5
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    since its the PPG level 1, it should be 9's after he dials in the carbs...but thats on a 951, the 800's could be different...

    you need to pull the plugs after cutting power and closing the throttle DURING a WOT run.....if you idle at all, you just killed the chop....

    Go back out with a plug wrench, wrap a WOT run the pull the lanyard while leaving the throttle closed....then pop the front, pull the plugs...

    on that Level 1, your HS screws should be about a 1/8th turn more on the PTO....

    Thats the proceedure I did on my GSXL when I had them rebuild my motor and had the Level 1 one there...

  6. #6
    Brian Thomas's Avatar
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    Quote Originally Posted by Danny View Post
    since its the PPG level 1, it should be 9's after he dials in the carbs...but thats on a 951, the 800's could be different...

    you need to pull the plugs after cutting power and closing the throttle DURING a WOT run.....if you idle at all, you just killed the chop....

    Go back out with a plug wrench, wrap a WOT run the pull the lanyard while leaving the throttle closed....then pop the front, pull the plugs...

    on that Level 1, your HS screws should be about a 1/8th turn more on the PTO....

    Thats the proceedure I did on my GSXL when I had them rebuild my motor and had the Level 1 one there...
    Bet ya' the BR8ES rpm better, accelerate better! I would not switch to 9's till the compression was over 200psi on a 785 engine. But, what would I know about 785's..........................-BT

  7. #7
    96XPSS's Avatar
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    800's and 951's are completely different animals when it comes to compression and spark plug heat. 800's never need 9's, BT and I have run 8's for years (even my twin-plugged VE920 domes). There is always a 50 rpm loss with 9's, and poor idling.

    The only accurate way to do a plug chop is kill it running wot, (10-15 seconds is better) pull them out, take a pic, put them back in, then idle wherever you want.

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