why do harlrys clunk when going into gear ,, and shifting gears ??

 

2 reasons, trying to put in gear to soon after pulling in clutch, and I use 20 w 50 Amsoil in all three holes . I did a service on my buddies 09 ultra using Amsoil and
he could not believe how better his bike shifted and it was also cooler & quitter, I also see people really slam the heel shifter . Just my .02 worth

 

Every big twin I've owned had that clunk, usually the very first time you shift from neutral down into 1st after starting the engine...

Once running and warmed up, far less noticeable...

 

my 98 dyna didnt clunk to badly, but i also turned the RPMs down a bit

 

Love that clunk. it's meaty & substantial, unlike the wimpy-*** doink that metrics make. lets me know the muhfuh is in gear!

 

 

They don't after you get tuned into them - except that first gear after a long stop. That is due to the clutch plates sticking to each other and cold oil.

 

 

They only clunk if you bang them into gear too quickly after pulling in the clutch, or if (like on MOST bikes)the clutch is improperly adjusted.
It's called "gear clash" and it's not good for the gear box.

 

I switched to Formula+ in the primary and Amsoil SevereGear 75w110 in the trans, still get a little clunk going to 1st, but mucho quieter,
and not at all while shifting on the move.