Has anyone replaced their compensator with a compensator eliminator? What is the pros and cons?

 

Changed one on a friends 16' FLHXS and did not have to remove the clutch basket and the chain slid on to the one we used, he also went with a 32 tooth, says he likes it even though it threw his speedo off a little, also replaced the automatic chain adjuster while at it. Pro and con I am not sure, says it feels smoother and easy starting.

 

While I can't argue with ACTUAL results, I am confused how changing the engine sprocket changed the speedo. The speedo is driven by the transmission output shaft and unless either the front or rear pulley was changed, the relationship between the transmission output shaft rpm and wheel rpm should remain the same (speedo unchanged). He may have lost cruise control and gear indicator and/or 6th gear lights as those are based on computed ratios between engine rpm and transmission output shaft rpm.

 

I agree with btsom, changes to the primary do not effect the speedo. That's why I looked at swapping clutch baskets to lower my final drive and make 6th gear actually usable.

 

His bike called for a 30 tooth gear and we put a 32 tooth gear on. Therefore you are running less RPM than before to reach the same speed, ran my bike with him and was off a few MPH.

 

Unless something besides the engine sprocket was changed, the difference you saw between the two bikes should have been identical to what you would have seen before the sprocket change. The engine rpm changed for a given speed, but the transmission output/rear wheel relationship was unchanged and that is what the speedo shows.

 

I changed mine out with a Baker compensator in my ‘07 FLHRSE3. I was getting a bit of backfiring on startup, and clunking when turning the engine off. The stock compensator was worn and had a bit of play. Got a great deal on ebay on a Baker unit, and also installed a Hayden m6 automatic chain tensioner. Resolved the backfire and clunking noise. Also upgraded the front motor mount with a Kinetic Structures unit. Took out about 90% of the horrible vibration from the stock mount.

 

I am not 100% on how it actually plays a roll with final drive. I went from 34t to 32t and my speedo was off 10 mph. I had to change gear ratios in my tuner so I could use my cruse control and indicator. It raised rpm by 250. At 80 mph with the 34t was 2800 now 3000 at 80 mph .

 

Two downsides to changing the compensator/crank sprocket for a smaller one will do (like a 32T in place of a 34T) is make the starter work harder because it will have less leverage and TBW bikes will lose cruise control as it uses a comparison between transmission speed and engine RPM to engage.

 

The cruise and 6thgear light (or gear indicator on the newer bikes) are based on a pre-loaded program that compares engine rpm against transmission rpm. If those ratios no longer happen because of sprocket changes in the primary, neither cruise nor the gear indicators will work. The "tuner" fix is the only option as you described. Presuming no pulley changes, the change in speedo indication still baffles me.