Results 1 to 13 of 13

Thread: 250r question

  1. #1
    Join Date
    Nov 2005
    Location
    arizona
    --
    61

    250r question

    A new 330 esr kit has just been installed and just when i thought it was ready for the dunes, it wasnt. For whatever reason it wont rev past half throttle. Pulls hard up to half throttle then feels like its hitting the rev limiter. Jetting is fine, i thought that was it at first. The ground on the bike is fine. Someone had told me the cdi box may be going out. Any input on what this might be or if it could be the cdi may be going out. Any input is appreciated.

  2. #2
    Join Date
    Jun 2009
    Location
    Tunkhannock,Pa
    --
    904
    my guess would be bad cdi
    1985 200X
    66mm H&S Piston
    Little Bit Bigger Cam
    Bassani Exhaust

    1985 350X With Bassani Exhaust

    1983 Honda 200E (PARTING OUT!!!!)

    1985 Yamaha Tri-Zinger


    My Feedback Threadhttp://http://www.3wheelerworld.com/showthread.php?105185-Feedback-for-RodKnockRacing&highlight=RodKnockRacing

  3. #3
    Join Date
    Dec 2002
    Location
    Orange County, NY
    --
    1,772
    CDI or stator.
    1985 Eddie Sanders ATC330r
    1986 Monstecate
    1984 ATC70 (awaiting 125cc transplant)
    1984 ATC125M
    1986 GSXR 750 - Keepin' it old school!
    1999 Arctic Cat 500 4x4 plow machine
    1999 Arctic Cat Thundercat 1000 (lake lizard)
    1996 Arctic Cat Jag 440 L/C (ditch banger)

  4. #4
    Join Date
    Nov 2005
    Location
    arizona
    --
    61
    Stator is fairly new in the bike, I guess that narrows down to the cdi, ill work on replacing that and see what the outcome is.

  5. #5
    Join Date
    Dec 2008
    Location
    Monroe MI
    --
    5,787

  6. #6
    Join Date
    Feb 2009
    Location
    michigan
    --
    2,387
    did you use the same carb as the 250?same jets?sounds like it is starving out.needs more air and fuel than stock.
    1985 ATC 250R
    . Team Red Trike

  7. #7
    Join Date
    Nov 2005
    Location
    arizona
    --
    61
    nah, im on a 39 pwk, i dont think its starving. But no i havnt checked the cdi. Might just go around that and put on a friends cdi to check.

  8. #8
    Join Date
    Mar 2006
    Location
    Oregon
    --
    2,471
    Their some aftermarket CDI that you can have programed or they ready to install set with 3 different settings .

    Will try and find the Web Site

  9. #9
    Join Date
    Nov 2005
    Location
    arizona
    --
    61
    different cdi has been put in, nothing changed. anymore ideas?

  10. #10
    Join Date
    Nov 2005
    Location
    arizona
    --
    61
    Could the stator cause this problem? in the process of the kit i went from my stock intake boot with boysen reeds to a boysen rad valve with power reeds, could this change anything?

  11. #11
    Join Date
    Dec 2002
    Location
    Orange County, NY
    --
    1,772
    My main jetting hasn't changed that much from when I had a mild 250 to a built 270 to an ESR330. I had a 39PWK on the first two set ups and a 40.5mm on my 330 and I've always been around a 190-200 main jet.

    John
    1985 Eddie Sanders ATC330r
    1986 Monstecate
    1984 ATC70 (awaiting 125cc transplant)
    1984 ATC125M
    1986 GSXR 750 - Keepin' it old school!
    1999 Arctic Cat 500 4x4 plow machine
    1999 Arctic Cat Thundercat 1000 (lake lizard)
    1996 Arctic Cat Jag 440 L/C (ditch banger)

  12. #12
    Join Date
    Nov 2005
    Location
    arizona
    --
    61
    ya i mean im sitting at a 195 main jet and its perfect when plug checked. just breaks up after 1/2 throttle. what pilot are u running?

  13. #13
    Join Date
    Nov 2005
    Location
    arizona
    --
    61
    If anyone was wondering, just got the bike up and running right now. Was running 110 octane, changed to 100 octane and change the needle to the right one, fine tuned it and BAM shes rippin up and down the streets. Ended up at a 185 main and will go 190 for the dunes. Simple thing as gas made the bike run like turd.

//ArrowChat Integreation Code //