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  1. #1
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    Default her bike 1971 ts-90

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    This thing is giving me some shit and I wanted to see if anyone wants to help.
    It starts up nice runs fine for awhile. Then after 5 miles or so it starts to bog down at higher rpms I can back the throttle off a bit and get it to be ok. She has also said it just dies with out warning when she is cruising along causing the back tire to skid. She is just learning to ride.
    Has oil pump and nice white smoke.
    Thanks in advance

  2. #2
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    I bet the tank has trash/rust in it........ Clean everything out even the carb and new lines......

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    Yep. Drain tank, install inline filter, (use fuel injection hose not generic "fuel" hose" which ethanol destroys), clean carb and reattack.

    Pics of spark plug would be useful. Got the correct heat range?

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    Quote Originally Posted by farmall View Post
    Yep. Drain tank, install inline filter, (use fuel injection hose not generic "fuel" hose" which ethanol destroys), clean carb and reattack.

    Pics of spark plug would be useful. Got the correct heat range?

    DAMN were good........... LOL

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    Quote Originally Posted by farmall View Post
    Yep. Drain tank, install inline filter, (use fuel injection hose not generic "fuel" hose" which ethanol destroys), clean carb and reattack.

    Pics of spark plug would be useful. Got the correct heat range?
    Click image for larger version. 

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  6. #6
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    The plug looks ok............ A little dark but not bad...

  7. #7

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    Sounds like a fuelling problem, blocked breather in fuel cap?

    Nick

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    ACV in the gas tank soaking now. someone welded a nipple on the tank for the petcock. so that may be the source of the rust...

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    Quote Originally Posted by leucadiaguitars View Post
    ACV in the gas tank soaking now. someone welded a nipple on the tank for the petcock. so that may be the source of the rust...

    What's ACV?????????

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    Apple Cider Vinegar worked like a champ big chunks of rust rolled out when I drained it. cleaning the carb tonight.

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    Quote Originally Posted by leucadiaguitars View Post
    Apple Cider Vinegar worked like a champ big chunks of rust rolled out when I drained it. cleaning the carb tonight.

    I knew your tank was full of it..........

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