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Harley hard starting problem

I need some trouble shooting ideas for a hard starting situation with my 95" Twin Cam engine, big bore kit, geared cams, with 62k miles.

The bike used to start on the first try. Now (when the engine is cold), the engine has to turn a few times before it fires.

It's especially bad when the engine is hot. It seems to be compression related, because the starter gear jumps every once and awhile.

Could it be an exhaust leak causing this? If so, how would I prove there is a leak?

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  • ken_simms Dec 31, 2009

    you're right... it was a bad battery.

  • ken_simms Jan 03, 2010

    A new battery seems to be the solution. Thanks for the help.



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Highley doubtful on exaust leak causing problem first make sure your battery is up to the task do a load test if that looks good do a draw test on the starter if not there it starts to get ugly that motor came with a torrington bearing on the sprocketshaft as they wear they develop crankshaft runout not a real big issue till your running straight gears on the camshafts which only tolerates .001 runout you could be binding there

Posted on Dec 30, 2009

  • makeitfast57 Jan 02, 2010

    this prob was solved look at previous comments



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I have had quite a few questions regarding adding a reverse gear to bikes.

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I'm not that familiar with the Twin Cam engine but from what you're saying, Harley has a drain or something in the cam chest of the Twin Cam engine. This is something new for Harley as the previous engines had no means of draining the cam chest. I would imagine that this is what the oil you saw was, oil in the cam chest waiting to be pumped back to the oil tank by the oil pump that is located in the cam chest. When you restart the engine, this area will again fill itself to the proper level.

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Can i put a 96" top end kit on my 2000 road glide

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I seem to remember that when Harley introduced the 88" Twin Cam engine, they offered a 96" kit for it. They said that the kit could be installed on the bottom end without the necessity of boring the "spigot holes" in the cases. This is NOT the case with the Evolution and earlier engines.

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If you have anymore questions, contact me directly at wd4ity at I'll scan a picture for you.

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