Engine help Please

Discussion in 'Engine, Fuel and Exhaust' started by wideglide1998, May 17, 2014.

  1. wideglide1998

    wideglide1998 New Member

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    Just got by bike back. Took it in for a rear tire and change the fluids.
    Then decided to have him check the cam chain tension-er since it has 34000 miles 99 fltri. He said the inside had a piece broke, so I told him to replace them he recommended just replacing them not the upgrade.Went to pick it up today and the mechanic said he cant get it to run right. Very rough at idle hard starting and not a lot of power like it had. He said it was put together correct that it must be my tuning was off and he did not know how to tune a power commander. Took it home put it on my laptop reinstalled the the map. No change. Motor also seems noisier than in did and has lifter noise or something on top ? Motor has a Big bore Kit head work 10:1 tw-55 cams with decompression buttons.Don't what to do next ? Top end out of adjustment or cams were not installed correctly ? :(
     
  2. wazzle

    wazzle Member

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    He is a tooth off on the chain. That is just about the only possibility.
     
  3. tourbox

    tourbox Senior Member

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    With a big bore kit it probably has adj. push rods. I would start there and check them cold. If they are alright I would check the timing of the cams & motor(mechanical).
    tourbox
     
  4. wideglide1998

    wideglide1998 New Member

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    Thanks for the input. Those were my thoughts also. I'll have to take it to a different shop that can work one performance motors. Thanks again.
     
  5. Breeze3at

    Breeze3at Well-Known Member

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    I think cam timing is off.
     
  6. Jack Klarich

    Jack Klarich Expert Member

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    Check your static timing first then pull the cover to check the timing marks it is cheap insurance and a good starting point
     
  7. 03ultra45385

    03ultra45385 Active Member

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    I believe you can check cam timing by;
    a. remove both spark plugs.
    b. using a straw find top dead center of either cylinder.
    c. release the push rod tube clips and raise the lower half of both tubes on the same cylinder
    d. with the piston at top dead center the lifters should be at the beginning or end of there respective travel (if no movement rotate the engine one more revolution) with a slight overlap.
     
  8. wazzle

    wazzle Member

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    That will get you close but I doubt one tooth off will be evident by that method.
     
  9. dolt

    dolt Senior Member Contributor

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    Run a compression test. If one tooth off, you will see a variance of 30-40psi between cylinders.
     
  10. FishHunter

    FishHunter Active Member

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    Yep, 30 lbs. or so is the norm.