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Thread: hot cam decompression valve removal

  1. #1
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    hot cam decompression valve removal

    ok this whats going on I have a hot cam stage 2 , fcr 39mm carb, 416 ss kit with 11.1 , curtis sparks xr 6 pipe, sparks rev cdi box. Its hard to start if the battery is not fully charge. ok I thought its the cdi box. but heres what happens after about 30 min of throwing the hammer down on the beast. its really hard to start it takes about 5 to 7 times hitting the start button to get it going but its unbelievable awsome when its running. any help would be appreciative........:
    Last edited by mopar 400; 12-31-2002 at 11:58 AM.
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  2. #2
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    I kinda didn't understand the last half of you statment but I would think the cdi boxs is whats giving you problems
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  3. #3
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    whith the hot cam you have to remove the decompression valve. I dont know if its that or the cdi box getting to hot...
    2007 YFZ- Alba full Front and Rear with Elka Dune Shocks, Fatboy 4 Exhaust, Rath Nerfs, and more.
    1999 416ex with 2 much $ in it.
    2000 440ex ss SOLD

  4. #4
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    I was told that with out the decompression valve that it would be hard to start any one with the same problem.....
    2007 YFZ- Alba full Front and Rear with Elka Dune Shocks, Fatboy 4 Exhaust, Rath Nerfs, and more.
    1999 416ex with 2 much $ in it.
    2000 440ex ss SOLD

  5. #5
    Guest
    put your stock CDI on there and see what happens..

  6. #6
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    Originally posted by Rico
    put your stock CDI on there and see what happens..
    Idid that it was still hard to start and it really rev out to fast. i was hitting the stock re v limiter to fast
    2007 YFZ- Alba full Front and Rear with Elka Dune Shocks, Fatboy 4 Exhaust, Rath Nerfs, and more.
    1999 416ex with 2 much $ in it.
    2000 440ex ss SOLD

  7. #7
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    Bean is offline I am the "infamous" 440..
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    is the pilot lean?
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  8. #8
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    I would have the battery tested.Probably bad.You don't need decompressor with that cam because the long duration bleeds off compression at low rpm's.That's why you put in high comp. piston so you don't loose so much bottom end power.

  9. #9
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    might starts right up hot or cold
    when in doudt, GAS IT!

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