Harley Davidson Engine Knock Idle

I just dont fkg know for sure but its the best guess at this point since the forged pistons arent following the normal rules.

Harley davidson engine knock idle. Front at idle Harley Davidson Dyna Glide. The small needle bearing goes bad and it starts to knock. In particular modifying your engine means it will require fuel with a higher octane rating than the 91 Harley-Davidson recommends.

If this is the case they may be able to be closed more and let the IAC take care of adjusting the idle. Sounds like some play could be present. Engine Noise Diagnostic Guide.

Idle-related issues on your fuel-injected Harley Davidson are normally an indication of a dirt-accumulated throttle or some other mechanical issues. MT Clutch Smoothness effort and slippage 175. It seems to go away after engine is warm.

Noise will also disappear at acceleration. Under power slack would be taken out but at idle would knock. If thats all it is there is no real issue since those mini contact hits in the comp wont cause anything but reflected knock noise.

Also you want to check your speed sensors vacuum leak or engine problems. If you start to notice rod knock this isnt a problem that will just resolve itselfyou must take immediate action and replace the rod bearing while also fixing any other parts associated with the sound. Harley Davidson Poor Performance - The engine starts but there are performance problemsThese problems may include poor fuel economy rough idle engine misfire engine hesitation severe spark knock etc.

Otherwise the bike could suffer an insufficient charge of the battery too. Engine Noise Cold I hot I high and low speeds 172. Generally any motorbike of Harley Davidson requires an idle range which should be between 950 and 1000 RPM.