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  1. #14
    Join Date
    May 2012
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    Upper Michigan
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    I don't think the reeds would cause it not to fire at all, they work more at higher throttle.

  2. #15
    Join Date
    Jun 2009
    Location
    Upstate SC
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    1,439
    Check the stator . if one cylinder won't fire you have a ignition issue.

    Sent from my SCH-I510 using Tapatalk 2

  3. #16
    Join Date
    Feb 2008
    Location
    Altmar, New York, United States
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    4,646
    Quote Originally Posted by jdblack View Post
    Check the stator . if one cylinder won't fire you have a ignition issue.

    Sent from my SCH-I510 using Tapatalk 2
    it has great spark. i am not sure how it gets timed. i think it has a crank scensor, or trigger.

  4. #17
    Join Date
    Jun 2009
    Location
    Upstate SC
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    1,439
    Quote Originally Posted by snupytcb View Post
    it has great spark. i am not sure how it gets timed. i think it has a crank scensor, or trigger.
    Your post #7 said no fire at all.....

    The timing is typically done by the rotation of the stator under the flywheel. magnets in the flywheel excite the stator and send voltage to the coils. rotating the stator changes the timing. that backfire seems to indicate a timing issue. just see if you can get at the stAtor and see if its loose.

    Sent from my SCH-I510 using Tapatalk 2

  5. #18
    Join Date
    Sep 2002
    Location
    Virginia
    Posts
    3,179
    115 psi ? Thats aweful low for a 2 cycle engine

    I like to see 150 , 140 is average

    Make sure both plugs are out and throttle is wide open when testing

    You might need to pull that flywheel off and see if the key-way is sheared in half , that will throw off your timing really bad

  6. #19
    Join Date
    Jan 2013
    Location
    Central, FL
    Posts
    29
    What is a snowmobile?

  7. #20
    Join Date
    Jun 2009
    Location
    Upstate SC
    Posts
    1,439
    Quote Originally Posted by Ductfisher View Post
    What is a snowmobile?
    Its a jet ski for solid water types.

    Sent from my SCH-I510 using Tapatalk 2

  8. #21
    Join Date
    May 2012
    Location
    Upper Michigan
    Posts
    3,588
    Quote Originally Posted by Snapperhead View Post
    115 psi ? Thats aweful low for a 2 cycle engine

    I like to see 150 , 140 is average

    Make sure both plugs are out and throttle is wide open when testing

    You might need to pull that flywheel off and see if the key-way is sheared in half , that will throw off your timing really bad
    I think 120 is more in line than 150, especially for an older sled. My race sled with 110 octane heads were like 160ish

  9. #22
    Join Date
    Feb 2010
    Location
    butler pa
    Posts
    1,073
    check and see if flywheel key sheared

  10. #23
    Join Date
    Feb 2008
    Location
    Altmar, New York, United States
    Posts
    4,646
    i agree, i have never seen a stock motor with that much compression. i am pulling the flywheel tomoroew. it is hot tub night tonight. we are kidless. we have a few other sleds so this one isn't a priority.
    Quote Originally Posted by Joehvac25 View Post
    I think 120 is more in line than 150, especially for an older sled. My race sled with 110 octane heads were like 160ish

  11. #24
    Join Date
    May 2012
    Location
    Upper Michigan
    Posts
    3,588
    Quote Originally Posted by snupytcb View Post
    i agree, i have never seen a stock motor with that much compression. i am pulling the flywheel tomoroew. it is hot tub night tonight. we are kidless. we have a few other sleds so this one isn't a priority.
    If you wake up in the 80s we need to hear the story here first ok?

  12. #25
    Join Date
    Feb 2008
    Location
    Altmar, New York, United States
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    4,646
    Quote Originally Posted by Joehvac25 View Post
    If you wake up in the 80s we need to hear the story here first ok?
    was htalk here then? i will do my best. maybe some pics of the rock'n concerts. man did they know how to rock back then or what?

  13. #26
    Join Date
    May 2012
    Location
    Upper Michigan
    Posts
    3,588
    Quote Originally Posted by snupytcb View Post
    was htalk here then? i will do my best. maybe some pics of the rock'n concerts. man did they know how to rock back then or what?
    My dads in a rock band so I know first hand about that stuff lol.
    I guess you didn't see the movie hot tub time machine? They make it back to the present.

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