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  1. #1
    Senior Member
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    Mar 2018
    City
    Warren
    State
    Massachusetts
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    128

    M8 compensator failed

    Hi guys looking for some input.my 18 flhxs had 6k miles on it when i did a stage 1V and now has 8300 miles,today leaving work,leaving hard,lost gears pulled over shut bike off and checked my belt was ok,tryed starting bike and it wouldnt start the starter was turning but not the motor.towed it home and pulled off the primary cover and found the compensator insides grenaded.havent seen any aftermarket units yet just the eliminator sprockets.i have heard good and bad about the eliminators.all input is appreciated.
    18 flhxs twisted cherry
    16" l.a choppers twin peaks bars,
    Harley lowers
    cobra 4.5 powerflo slipons
    6.5" klock works dark windshield
    custom dynamics headlight and bullet ringz turn signals
    kuryakyn dash
    cyclesmiths floorboards

  2. #2
    Administrator hulkss's Avatar
    Join Date
    Sep 2013
    City
    Luck
    State
    Wisconsin
    Posts
    538
    Put in another factory compensator. Be sure the spring pack is shimmed for the max amount of preload.
    2019 FLHCS

  3. #3
    Member
    Join Date
    Feb 2015
    City
    Kansas City
    State
    Kansas
    Posts
    73
    Quote Originally Posted by 18flhxs View Post
    Hi guys looking for some input.my 18 flhxs had 6k miles on it when i did a stage 1V and now has 8300 miles,today leaving work,leaving hard,lost gears pulled over shut bike off and checked my belt was ok,tryed starting bike and it wouldnt start the starter was turning but not the motor.towed it home and pulled off the primary cover and found the compensator insides grenaded.havent seen any aftermarket units yet just the eliminator sprockets.i have heard good and bad about the eliminators.all input is appreciated.
    Please post pics of the carnage, so that the rest of us M8 owners will know what to keep an eye out for. As for the compensator eliminator sprocket, I used on on my 2015 SGS and loved it. If I were going further with the performance mods, I wouldn't hesitate to install one on the M8 too.


    2015 Vivid Black SGS w/107 motor: V&H Pro Pipe, Thundermax tuner, SE Ventilator Elite AC with K&N filter, Andrews 30T pulley mod, AIM variable pressure clutch, Evolution Industries billet clutch basket, Twin Power compensator eliminator sprocket, HD highway pegs, HD passenger floorboards, RB Racing modified stock swingarm (2" over adjustable), HD 7" Wind Splitter windshield, HD black windshield trim, JM Corp 250W 2 channel amp and Focal 165 KRC speakers in fairing

  4. #4
    Administrator BillyBob's Avatar
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    Jan 2012
    City
    Jackson
    State
    Mississippi
    Posts
    1,093
    Yes, photos would be great!


    Sent from my iPhone using Tapatalk Pro

  5. #5
    Senior Member
    Join Date
    Mar 2018
    City
    Warren
    State
    Massachusetts
    Posts
    128
    so the sliding cam broke in 3 pieces plus a bunch of small chunks.20190828_175017.jpg
    18 flhxs twisted cherry
    16" l.a choppers twin peaks bars,
    Harley lowers
    cobra 4.5 powerflo slipons
    6.5" klock works dark windshield
    custom dynamics headlight and bullet ringz turn signals
    kuryakyn dash
    cyclesmiths floorboards

  6. #6
    Administrator hulkss's Avatar
    Join Date
    Sep 2013
    City
    Luck
    State
    Wisconsin
    Posts
    538
    A new compensator should not need to be shimmed, but I would check this:

    comp.jpg
    2019 FLHCS

  7. #7
    Member
    Join Date
    Feb 2015
    City
    Kansas City
    State
    Kansas
    Posts
    73
    18flhxs, did you experience any noise or abnormal rotational sounds prior to discovering the damage to your compensator?


    2015 Vivid Black SGS w/107 motor: V&H Pro Pipe, Thundermax tuner, SE Ventilator Elite AC with K&N filter, Andrews 30T pulley mod, AIM variable pressure clutch, Evolution Industries billet clutch basket, Twin Power compensator eliminator sprocket, HD highway pegs, HD passenger floorboards, RB Racing modified stock swingarm (2" over adjustable), HD 7" Wind Splitter windshield, HD black windshield trim, JM Corp 250W 2 channel amp and Focal 165 KRC speakers in fairing

  8. #8
    Senior Member
    Join Date
    Mar 2018
    City
    Warren
    State
    Massachusetts
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    128
    No nothing at all,BUT since i did my stage 4 build this was the first time i really let it rip.3 gears of rubber with ease then,well you know it was broke.120% rider caused so now i know it will do some damage treating it like that.

  9. #9
    Administrator hulkss's Avatar
    Join Date
    Sep 2013
    City
    Luck
    State
    Wisconsin
    Posts
    538
    Quote Originally Posted by 18flhxs View Post
    No nothing at all,BUT since i did my stage 4 build this was the first time i really let it rip.3 gears of rubber with ease then,well you know it was broke.120% rider caused so now i know it will do some damage treating it like that.
    No. It should be able to take that no problem. Lugging the motor at heavy throttle is worse on the compensator. It must have been defective in some way. Just put in another one and inspect the spring preload.
    2019 FLHCS

  10. #10
    Senior Member
    Join Date
    Mar 2018
    City
    Warren
    State
    Massachusetts
    Posts
    128
    So to update my last post,i ordered bakers compensator assy. And the attitude adjuster but wont have them till oct.3.i installed a solid sprocket to try to finish out the season but with that and the factory chain tensioner the chain is way over tightening, so looks like that plan was foiled.adjusted the chain tension to factory specs. Put about 100 miles on it and all was good,pulled the primary cover off just to check and the chain was tight as a banjo string.re adjusted it again and did about 85 miles real easy and checked it again and same thing way to tight,cant have that.so now it sits,for now.

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