1st trail ride after work was done

Discussion in 'Miscellaneous' started by Joseph Healy, Jan 13, 2019.

  1. Joseph Healy

    Joseph Healy Member

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    That feeling when she opens up and hits power band.... Anyone that has rebuilt a motor knows it . After rebuilding the top end,toomey b1, Boysen power reeds, vented air box lid, 310 main jet and needle jet adjustment, tires chain, front and rear bearings, brakes wheel spacers, graphic kit, z400 rear shock, oil injection block off and probably a few other things.today was the 1st trail ride and she didn't disappoint. A little break up mid range but top end was there. What a difference from before 20190104_161141.jpg
     
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  2. Larry's Shee

    Larry's Shee Active Member

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    That looks great! You plan on front spacers?
    Is the break up mid throttle or mid RPM?
     
  3. Joseph Healy

    Joseph Healy Member

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    I flipped the front wheels for now. Seems to have a wobble when going fast Might spend on the spacers. I have my eye in the +2+1 a arms and doing yfz450 shocks up front Going to run over 300$ for all that tho. Or I found a pair of used banshee shocks for 45$. $ is right so well see
     
  4. Joseph Healy

    Joseph Healy Member

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    Mid rpm break up
     
  5. Larry's Shee

    Larry's Shee Active Member

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    Do you have any porting?
    Ok, several things that you can try. First is the pilot jet recommend size by Toomy? Needle and needle clip position?
    I presume plug chop is good.
    Easiest first. Try turning air screw no more than 1/4 turn either way. If no change return to original setting.
    Next raise needle (lower clip) if no improvment return to original. You could also try one clip leaner. If no improvment definitely return to original setting.

    Be aware that some combinations have humps and hollows in the power band. Look at Dyno grafs for two strokes. There's a dip just before the power band comes on. Banshees in particular.
    Look on this page. Center row, 6th. down, PERFECT example.

    https://www.google.com/search?q=ban...hVpooMKHQIGCEEQ_AUoAXoECAsQAQ&biw=601&bih=962
     
  6. Larry's Shee

    Larry's Shee Active Member

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  7. Joseph Healy

    Joseph Healy Member

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    I bought the main jet from toomey and followed their directions with the other needle jet and air mix I didn't do any porting which I regret. Have boysen power reeds but not the rad valve Thanks for the input I'll run through it all in all I'm happy as sh*t with how she was running
     
  8. Joseph Healy

    Joseph Healy Member

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    Found these for 45$ Off a banshee should I go for it ?? Screenshot_20190115-154141_CPlus for Craigslist.jpg
     
  9. Larry's Shee

    Larry's Shee Active Member

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    Not bad price on shocks as long as no evidence of oil leaks.

    half way down this page that has excellent Dyno graph that shows the dip in curve just before the hit. That might be what youre feeling.
     

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