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Thread: will not rev

  1. #1
    Join Date
    Jul 2007
    Location
    manassas va
    Posts
    22

    will not rev

    blocked oil pump off a few weeks ago replaced reeds air filter spark plug the quad ran fine when parked but after all parts named above were installed it will not rev idles great acts like it is extremely rich tried setting needle lean as it would go stillacts rich have not a clue please help me figure this problem out

  2. #2
    Join Date
    Mar 2007
    Posts
    214
    here is something you can try i had this simmilar problem on the clutch lever there is a parking brake there is a wire on it take off the front hood and follow the wire the wire leads to a plug on the wiring harness unplug it and start it and see if that works. that is a saftey so if the parking brake is ingaged it will not let it move it will start and idle but if you give it gas it sounds like it is almost bouncing off a rev limiter but that is that switch. this is what happend to me and i unplugged it and it fired right up and ran fine hope this helps.

    P.S. make sure your parking brake is not engaged before you do all this

  3. #3
    Join Date
    Aug 2006
    Location
    mass.
    Posts
    578
    make sure the reeds are installed right and there are no air leaks in the intake. if its not that it could be the parking brake
    White 06 YFZ Full HMF

    2000 Yamaha Blaster
    LRD, UNI, Carbon tech, RAZR, DG, Durablue, twin row carrier,30mm oko, reed spacer, injecter block off....

    Stock 1987 250x

  4. #4
    Join Date
    Oct 2006
    Location
    Tennessee
    Posts
    798
    the parking brake would be for the 03 and newer blasters. on the 02 and older their is a plug under the front hood. it has white plugs on the end. unplug it and see if it helps. it did the same thing on mine. and when i unplugged it it started and ran fine.
    '07 450ER:
    white brothers xc bumper, prm swinger skid, jetted, baffle removed

    '98 Yamaha Blaster:
    Airsal firebreather 240 kit, Vitos 3mm stroker crank, Project blaster aluminum airbox, Project blaster intake, Keihin 35mm airstriker carb, Vitos timing degree key, Boyeson pro series reeds, F7 pipe and silencer, Uni air filter, Durablue +2 axle (stock now i broke it), Kenda Klaw rear tires, Douglas .190 rear wheels (now stock i bent them), oil injection block off kit, EBC heavy duty clutch kit, 13/38 gearing, billet clutch basket, lightened flywheel, Renthal works chain, Fly handlebars, Hellbound +3 swinger, nissin hydro brake kit, banshee front shocks (stock now i bent them) , works quadstar rear shock w/rezzie, DG National front bumper

    coming soon:
    Maier race cut fenders
    Elka/Leager a arm and shock kit
    DG national series grab bar

  5. #5
    Join Date
    Mar 2007
    Posts
    214
    Originally posted by blasterfreak99
    the parking brake would be for the 03 and newer blasters. on the 02 and older their is a plug under the front hood. it has white plugs on the end. unplug it and see if it helps. it did the same thing on mine. and when i unplugged it it started and ran fine.
    that is how it is on mine and mine is an 04

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