I don't think it matters much within the range specified in the manual. If you turn the pushrod screw out, you will use the upper part of the ramps. If you turn it in, you will use the lower part of the ramps. If the ramps are a constant angle over the operating range there is no difference.
When you set the clutch cable free play the ramps are rotated to take up the excess push rod free-play regardless of the pushrod screw setting.
I set mine at 1/2 turn out now that the clutch is run-in. As the clutch wears the free play is reduced.
Got it, since the entire ramp isn't used, the same thickness ramp with a different ramp angle can do more (or less) work.
Thought: Could probably remove one pair of discs and still have enough clutch traction, tailored to the application.
Sorry, but I cannot offer thanks to Hulkss for this massive thread and info. I wanted to, I really did. But, I've only had my '21 Heritage 114 about 6 weeks and this thread has already cost me so much money that I'm afraid to read any new posts that pop up. This is my first Harley (at 73 yrs old) and I feel like I've re-imagined it after maybe 1/3 of the upgrades Hulkss has documented. Seriously though, what a tremendous reference source this is and Hulkss deserves high praise indeed!
Thanks Hulkss, will order the the ramp and try it out
Hello Hulkss,
I called my local HD dealer to order kit #37000376 and was told this is not work with my 107 CI M8. I didn't think the transmission on the 107 CI would be different than the transmission on a 114 CI Heritage or LRS.
Anyway, in a previous post you showed Service Bulletin M1514 "Clutch Ramp Running Change" which has the individual part numbers 37200435 (inner ramp) and 37200434 (outer ramp). If the compatibility of the kit is in question for my 107 CI, maybe I should order the parts individually. I am assuming the three existing steel ball can be re-used.
Thanks for your help. You are a wealth of information!
I called my local HD dealer to order kit #37000376 and was told this is not work with my 107 CI M8. I didn't think the transmission on the 107 CI would be different than the transmission on a 114 CI Heritage or LRS.
Anyway, in a previous post you showed Service Bulletin M1514 "Clutch Ramp Running Change" which has the individual part numbers 37200435 (inner ramp) and 37200434 (outer ramp). If the compatibility of the kit is in question for my 107 CI, maybe I should order the parts individually. I am assuming the three existing steel ball can be re-used.
Thanks for your help. You are a wealth of information!
I don't typically like "classic" styled motorcycles like the Heritage, but this is a great looking bike! I love the two-tone red and the machined wheels are gorgeous!
I searched the thread and didn't see it. Did you happen to weight the stock wheels and compare them to the weight of these new wheels?
Last edited by JatoTheRipper; 10-22-2021 at 01:36 PM.
I felt a need for a bit better braking, so, I bought a pair of lightly used stock rotors on eBay and reconditioned them with a fine grit flex-hone for brake rotors. It's important to have fresh rotor surfaces if you are changing pad material. Pad material burnishes onto the rotor metal during a stop. This burnishing process plates a thin film of pad material onto the rotors. This results in the best brake performance from the selected pad material.
Here's a look at one of my rotor surfaces after the flex hone. The surface finish is smooth with fine scratches and not directional around the disc.
I then installed Lyndall Xtreme brake pads. Per Lyndall: "A true HH friction rating in an organic material. The highest stopping torque and the least amount of lever effort. Made in America with the latest friction material from Dupont."
I really like the brake performance now. The brakes need less lever force and the feel is very smooth and progressive all the way up to when the anti-lock system engages. I don't feel like I'm missing a rotor up front anymore, and I don't have to put my leg into the rear brake. Definitely better than the Lyndall Gold-Plus pad material (which I tried) for a bike with only one rotor up front and a somewhat weak rear brake.
Just curious on how much wear the hone had after doing just the 2 rotors as in how many would you think you could possibly do with the 1 purchase?
Rotors looked great and good info👍
10-19-2021, 05:16 AM
