BOGGING, SLIPPING, HICCUPPING, SKIPPING BEATS: problem solved!!!!!

Discussion in 'General Questions' started by Lippa, Aug 26, 2009.

  1. Lippa

    Lippa New Member

    For those of you that don't want to be bored with the details, here's the quick version: brand new MB (4 stroke Honda) was not riding well. It rode ok for the first 10miles and then, to take the descriptions found on many other posts, the engine seemed like it was bogging, skipping beats, or the transmission slipping, I couldn't tell exactly what was wrong with it. Sounds familiar?????
    Solution: The clutch cable, being new, extended just enough so that the sliding engager in the transmission wasn't pushing against the teeth of the final drive gear so that it was skipping teeth giving me that bogging sensation. At the handlebar lever was enough to increase the cable's tension and the bogging, slipping etc was COMPLETELY gone!!!!!!!!!!!!!!!

    Here more (boring) details of the same story
    Because of the "bogging" problem, I couldn't really tell if it was the engine or the transmission because I could only test the engine alone under no load (it was fine). Maybe the problem was with the load applied? I started checking if it was a vacuum problem with the tank. Tank was fine, and so was the fuel line, and filter (which I replaced anyway with a proper one including proper clamps). Bogging still there.
    I then disassembled and clean the carburetor (which was clean anyway) because it slved other people's problem. Bogging unchanged!
    Then I read that the transmission shouldn't run wet (I had about 100ml of oil in it). Fine- I told myself, I removed the cover, drained the assembly and clean it real well with break cleaner. Grease it and reassemble it. Bogging again!
    10 miles after the first cleaning, I re-opened the transmission, removed the grease, cleaned up everything, and re-greased. Bogging unchanged!
    Incidentally it was good to run it with oil for the first 40 miles or so because the oil was black and nasty after that it did a good break-in and now it is clean. I also noticed that no damage or wear were visible in the transmission. A good thing.
    Then I bypassed the kill switch, could this be an electrical problem? Bogging still there!

    Finally, as I was riding, it started skipping more and more and I noticed that it would be ok for few seconds only if I disengaged and re-engaged the clutch. Could that be it?
    I stopped, I increased the tension of the cable and I went. OH MY GOD, it was running perfectly, smooth and clean, pulling hard like a real motorcycle!!!

    How common is this problem?
     
    Last edited by a moderator: Dec 15, 2015

  2. sparky

    sparky Active Member

    Pretty common... have you seen Large's clutch mod?
     
  3. HoughMade

    HoughMade Guest

    Nice find and fix....I just removed my engager handle altogether and reversed the spring to hold it as always engaged.
     
  4. Lippa

    Lippa New Member

    Large's clutch? can you point me to the right thread Sparky?
    Hough, does that mean that the clutch is ALWAYS engaged?
     
  5. HoughMade

    HoughMade Guest

    No- the gearbox is always engaged. The clutch engages when you rev it only.
     
  6. sparky

    sparky Active Member

  7. HoughMade

    HoughMade Guest


    Nice idea...but no so much for a 4 stroke with centrifugal clutch (ony Honda 4 strokes I have ever seen use a centrifugal clutch).

    BTW- do not use the engager as a clutch. Engage it at idle only, then leave it alone.
     
  8. sparky

    sparky Active Member

    Doh! My mistake.
     
  9. Lippa

    Lippa New Member


    right, the GEARBOX, not the clutch, is always engaged. The clutch
    is centrifugal and engages above ~2,200rmp.

    thanks to both for the inputs.
    David
     
Loading...