REV Limiter's ?

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  • Sand_fiend
    • Jan 2026
    #1

    REV Limiter's ?

    Ok, so i am putting this motor back together again. New shims, Shim buckets and the cam is being fixed after eating two shim's.

    A Question of Possible over revving was asked by members here.
    Mega cycles says these cams are good up to 9,800 rpm's with this set up i have.

    I still believe the E-bay shims gave up but..
    .
    Is there a aftermarket rev limiter for these bike's. i know it is a cable driven tach.
    So it must be some kind of electrical coil limiter off the pick up ?
    Or what do you guys do to make one of some sort ?

    just putting this out there.. Thanks..
    Tags: None
    • rapidray
      Forum Guru
      GSResource Superstar
      • Oct 2006
      • 8195
      • So Cal
      #2
      Dynatek makes a rev limiter. I hope you aren't using stock valve springs!
      Ray

        Comment

        • Sand_fiend
          #3
          No. Not stock. i have over threads on my build ..

          Thanks, i will look in to that..

            Comment

            • Steve
              GS Whisperer
              • Jun 2005
              • 35924
              • southwest oHIo
              #4
              Some stock GSes will go over to 10,000, so 9800 is nothing "special".

              It would really help to know what bike you are talking about.

              .
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                Comment

                • Sand_fiend
                  #5
                  Originally posted by Steve
                  Some stock GSes will go over to 10,000, so 9800 is nothing "special".

                  It would really help to know what bike you are talking about.



                  .
                  Sorry i have a couple of post on this build..
                  it's a 79 gs550 with a wisco 635 kit, mega cycle street/race cams, valve springs, some porting and CR custom 31 smooth bores..

                    Comment

                    • gs11ezrydr
                      Forum Mentor
                      • Mar 2013
                      • 407
                      • South Central Kentucky
                      #6
                      Yes Dynatec make a very good rev limiter. And it' adjustable. Can't never tell when you miss a gear, or round out a trans dog. Excessive tire spin,I Back cut trans now since then. . I blew a clutch basket one time and wish I had a limiter at that time caused catastrophic damaged, Clutch basket backing plate, Oil pump gears. I was in third gear heavy load with a stock basket and it flexed taking out a lot of parts, Damaged the bearing retainer also. Cracked the ring gear and shattered the Hi Volume pump gears I think a rev limited might have saved some of it if not all. Got one (limiter) now and only turn it up when in race mode lol.
                      Last edited by gs11ezrydr; 06-14-2015, 07:11 AM.
                      sigpic 82 gs1100ez 1168 Wiseco,Web .348 Cams,Falicon Sprockets,Star Racing Ported Head,1mm o/s Stainless Valves,APE Springs,Bronze Guides,etc.APE Billet Tensioner,36CV Carbs,Stage 3 Dynojet,Plenum w/K&N filter,Trued,Welded,Balanced,Crank w/Katana rods & Billet left end, FBG backcut trans, VHR HD Clutch basket,APE nut,VHR High volume oil pump gears,1150 Oil cooler,V&H Megaphone header w/Competition baffle,Dyna S,Coils,Wires,etc.Other misc.mods.

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                        • rapidray
                          Forum Guru
                          GSResource Superstar
                          • Oct 2006
                          • 8195
                          • So Cal
                          #7
                          Originally posted by Steve
                          Some stock GSes will go over to 10,000, so 9800 is nothing "special".


                          .
                          It's NOT a stock engine Steve.
                          Ray.

                            Comment

                            • Sand_fiend
                              #8
                              The cam is only a 380 lift with a 260 duration. the cam calls for .004". and with the new CR 31 carbs, it will rev over 10K if i pushed it, but i don't want to go that high because im told it could pitch a shim. that is why i want to limit it.

                              the closest i could get was 005" and .006" it did not run good at .003" or .002"

                              But the Bad news today is, after removing the valve i found that the Guide is cracked
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