Harley Davidson Forums banner

1 - 8 of 8 Posts

·
Registered
Joined
·
826 Posts
Discussion Starter #1
I took my wife's '17 1200 Custom for a quick run, just around the block. I was checking the rear suspension adjustments I just made. (Trying to take some of the harshness out of bumps).

As I was approaching the house, I was in first gear, clutch released, I hear a prominent "whirring" coming from the primary. At first I thought it might be the jiffy stand rubbing on something. Nope. I tried duplicating the sound in 2nd gear to no avail. But then I'm near deaf! Then I discovered that the noise is gone whenever the clutch is engaged. It only makes this noise in first gear while decelerating.

I'm not at all familiar with this bike. I rode it home on New year's eve and one quick check ride after installing the windshield.
Does this sound abnormal to those of you in the know? The bike has 5862 miles on the clock, a mere 675 since we bought it. It is bone stock!
TIA.
 

·
Registered
Joined
·
804 Posts
Just a shot in the dark . . . does adjusting the shocks affect the belt adjustment? I don't know if it does or not, but I thought I'd throw that out there.

Good Luck!
 

·
Retired citizen
Joined
·
22,887 Posts
I would check the primary / trans oil level and the drive chain adjustment.
 

·
Registered
Joined
·
92 Posts
Its the dreaded whine. My 08 ultra has it. It has to do with the way the gears are cut. There is a post about it on this site.
 

·
Registered
Joined
·
826 Posts
Discussion Starter #5

·
Registered
Joined
·
826 Posts
Discussion Starter #6
Its the dreaded whine. My 08 ultra has it. It has to do with the way the gears are cut. There is a post about it on this site.
Yep, my Ultra has that whine also but, the noise coming from this Sporty is much more prominent! That's why I raised the question..👍
 

·
Registered
Joined
·
826 Posts
Discussion Starter #7
Just a shot in the dark . . . does adjusting the shocks affect the belt adjustment? I don't know if it does or not, but I thought I'd throw that out there.

Good Luck!
I am certain: No. I softened the spring pre-load by one dot on both rear shocks. If a suspension change were to cause a rubbing or a load on a part. It would be constant or, intermittence would be based on load. This makes noise only in first gear, only when decelerating (engine braking).

This noise is coming from the Primary, probably the primary chain or possibly the clutch or trans. I never heard a clutch make this kind of sound. It is most likely the chain tension in the primary. That was my first guess. My second was fluid level. But the bike has zero signs of a leak anywhere and i did check the fluid level in the primary within a day or two of purchasing it and it shifts smooth as glass, even finding neutral is spot on, every time. The thought of gear whine did occur to me however, my lack of experience with Sportsters is the reason i made the post.

Schmidty, basically confirmed my first thoughts. I plan on investigating this tomorrow, as i'm stuck at home waiting for tree service. Planning on a Sunday ride, so i have to get it all checked out and test ride tomorrow.

She doesn't rev-match or use engine braking when coming to a stop. So the bike would never be in the configuration that i had it in, with her on the saddle. Which explains why i never heard that noise when riding along side her. I don't normally engine brake either but, i play with this bike when i ride it! It feels like a mini bike with BALLS! :p
I will report my findings tomorrow, or my lack of!
 

·
Registered
Joined
·
826 Posts
Discussion Starter #8
Had a AWESOME Day today!
Had a bit of a late start this morning because, my first action cam arrived from Amazon yesterday. So i stayed up to late tinkering with that. Woke up late. Duh! When i finally got the grey matter clicking this morning: I put Lisa's bike on the jack to find the cause of that noise coming from the primary side. The fluid level was perfect. The primary chain felt kinda sloppy. So I pulled the spark plugs and put the trans in 5th gear to roll the engine over. That is fun! I picked the tightest tension on the chain that i could find. It was about 3/8" too loose. Adjusted it to just under 1/2" free play. Got it back together and test rode it. The noise is history! Yea!
 
1 - 8 of 8 Posts
Top