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. Upping the idle speed to 1000 may change the frequency and sound. Generally any motorbike of Harley Davidson requires an idle range which should be between 950 and 1000 RPM. I have a 2005 harley davidson ultra classic with a 88 cubic inch engine.

Cleaning the motorcycle very well is one way to know if the dirty throttle is the issue. These problems are usually caused by a serious mechanical problem or an unclean throttle. Maybe a dumb suggestion as I am not sure where the sound is coming from but one of my heatshields wiggled loose and began to make a low knock sound near the engine.

The noise will disappear when plug with bad piston is shorted. Filed under Harley Tips. 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.

Located the loose clamp and took care of my issue. Engine Noise Cold I hot I high and low speeds 172. MT Clutch Smoothness effort and slippage 175.

Two more areas where a slightly different clicking clucking sound can come from is the breather seperator cap chattering up and down or the throttle shafts tapping at idle. Youll need high-octane fuel to prevent the engine from knocking. Does when idleing also.

I had the breather seperator lid make noise on mine so I silicone bonded the lid to the body. The problem may occur when the engine is hot or cold or when you are low on fuel. There is significantly more engine vibration at idle than at any other engine speed.