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Running a little lean!

Discussion in 'Motorcycle Tech Talk' started by 01standard, Mar 22, 2011.

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  1. 01standard

    01standard New Member

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    So I got my Cams put in, my heavy air breather, and Stage 1 carb kit, and new plugs, all done and put back together, I started it up, let get warm then took it out on a 8 mile ride, loved the feel and power change, but after cool down, I pulled the plugs, looks a little lean, the plugs have white on them, do I need to go to the the 200 main jet? the biggest in the kit was a 195.
    01standard, Mar 22, 2011
    #1
  3. chucktx

    chucktx Moderator Staff Member

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    what cams and what pipes???? cant read plugs anymore....too much junk being added to the manufacture............what engine??
    chucktx, Mar 22, 2011
    #2
  4. 01standard

    01standard New Member

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    Andrews 37 cams, Screaming eagle slipons, 2001 e glide 88.
    01standard, Mar 22, 2011
    #3
  5. chucktx

    chucktx Moderator Staff Member

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    if no head work has been done.......the 195 should work fine. i would ride and keep an eye on the plugs if you think it is to hot. the thing to look at is the ceramic going away or the electrode going away. use a magnify lens and good light to look at them.
    chucktx, Mar 22, 2011
    #4
  6. 01standard

    01standard New Member

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    Thanks, I was told new plugs could take a while to show, I also need to go for a 10 to 15 mile ride and check it again. Thanks for your help!!!
    01standard, Mar 22, 2011
    #5
  7. FLHTbiker

    FLHTbiker Moderator Staff Member

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    Had a 03 that was set to lean and when putting a load on it, like riding up a hill it would ping real bad. Don't know how old the mufflers are but a lean condition could allow a gold color and even at the header pipe. Takes time to notice it though.
    FLHTbiker, Mar 22, 2011
    #6
  8. hotroadking

    hotroadking Super Moderator Staff Member

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    you can't read plugs anymore, unleaded with ethanol, it's just going to be white

    If its black with soot then you have problems...
    hotroadking, Mar 22, 2011
    #7
  9. HarleysLR

    HarleysLR Active Member

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    look for blisters on the porcelain part of the plug and you got to look deep into the plug not just at the tip,
    HarleysLR, Mar 22, 2011
    #8
  10. cowboy

    cowboy Moderator Staff Member

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    yep to all the above , but you'll need about 50 miles or so to get the right look:D
    cowboy, Mar 22, 2011
    #9
  11. Lucifer

    Lucifer Well-Known Member

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    195 main should be plenty...if jetting changes are needed it would most likely be the needle jet needs adjusting, either shimmed or replaced with the N65C(88 Sporty needle)or a CV Performance kit.
    Lucifer, Mar 23, 2011
    #10
  12. 01standard

    01standard New Member

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    I put 63 miles on it last week, It is still too lean,
    I am going to try a 200 main jet.

    I f that don't richen it up I will have to try the
    shims.
    I am suprised that it is too lean with the 195 main
    and 48 idle jet.
    01standard, Mar 28, 2011
    #11
  13. HarleysLR

    HarleysLR Active Member

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    i tune mine buy makeing it to rich the back it down one step, when it is to rich it should flutter a little or feel heavy, to lean will really run good but not for long. unless your on top end a long time 195 should be good, I'd try a 50 slow jet and see how it feels. JMO
    HarleysLR, Mar 28, 2011
    #12
  14. hotroadking

    hotroadking Super Moderator Staff Member

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    check for intake leaks, if you have one, it will act like you
    are saying...
    hotroadking, Mar 28, 2011
    #13
  15. Lucifer

    Lucifer Well-Known Member

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    Agree with HRK....probably an intake leak, that jetting should be plenty if it's 88" still good for a 95"...pilot is for off idle to 1/4 throttle, needle from 1/4 to 3/4 and the main from 3/4 to wide open...so going to a 200 main is only going to fatten up 3/4 to WOT.
    Lucifer, Mar 28, 2011
    #14
  16. 01standard

    01standard New Member

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    I shimmed the needle, when I get some better weather I will ride it and see, to check the air intake should i just use smoke or what works best?
    01standard, Mar 28, 2011
    #15
  17. Lucifer

    Lucifer Well-Known Member

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    A can of WD40 will work... spray it around the carb/manifold mount and flanges at the heads, being careful not to get any in the mouth of the carb, if you do you'll get a false reading....if the idle changes when you spray you have an air leak
    Lucifer, Mar 28, 2011
    #16
  18. hotroadking

    hotroadking Super Moderator Staff Member

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    Or a small propane tank, do not light it but warm up the engine
    and set the throttle stop to hold RPM about 1500 to 1700.

    Then open up the propane torch but don't light and hold it in around the front flange
    and then the rear, if the idle changes you have found that it has a leak.

    Also check the vac lines from the manifold, it gets hot in there, things have a habit of
    going south in the heat...

    Propane makes less of a mess but WD-40 or carb cleaner will do it as well...
    hotroadking, Mar 29, 2011
    #17
  19. JohnnyBiker

    JohnnyBiker Well-Known Member

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    That is a good tip about the propane. I will remember that one. I can see how the WD would make a mess. :)
    JohnnyBiker, Mar 29, 2011
    #18
  20. 01standard

    01standard New Member

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    Ok, had time to mess with and ride the bike today, Bottom end feels good, with a 48 slow, and adjusted the mixture screw.
    Tried a 195 main with 2 shims, bike was cutting out at full throttle, put the 200 main in, same thing, put back in 195 main, same thing, pulled 1 shim out, same thing.
    We also did the intake test with propane, it showed no leak!
    Any ideas now?
    Also when it was cutting out at full throttle, i back off 1/8 and it is fine. it quits cutting and pulls better.
    01standard, Mar 29, 2011
    #19
  21. 01standard

    01standard New Member

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    I am leaving the computer for the night, I will check first thing in the morning.
    01standard, Mar 29, 2011
    #20
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