Resistance while clutch is pulled

Discussion in 'Motorized Bicycle General Discussion' started by Sylph, Apr 8, 2014.

  1. Greg58

    Greg58 Well-Known Member

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    Yes that sounds good, be sure to let everyone here on the forum know if you find the answer. I haven't had anything like that happen.(yet!)
     
  2. 2door

    2door Moderator
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    If that is the case then your clutch cable is adjusted correctly and everything is operating as it should be. I don't see any problems except what you've already described and that is the reistance normally seen/felt.

    My suggestion? Go ride you bike and enjoy it. I don't believe you have a problem.

    Thanks for keeping us updated on your findings. It helps us to help you.

    Tom
     
  3. Greg58

    Greg58 Well-Known Member

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    Tom, have you ever heard of a engine that would slide the tire with the clutch pulled as this one does?
     
  4. Sylph

    Sylph New Member

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    Yeah, thankyou! As I said back on page 1, I'm satisfied that's it's fairly normal and my mind is at rest about the issue.

    (re: sliding the tyre... Only happens on gravel or dirt, not solid ground)
     
  5. maniac57

    maniac57 Old, Fat, and still faster than you

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  6. 2door

    2door Moderator
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    Greg,
    Judging from her post #20, that's not the case. Am I confused?

    Tom

    EDIT: Okay I went back and saw where she said the wheel slides but in gravel. If everything else is working as described above then there's a good chance the chain in bunching up on the drive sprocket occasionally.
     
    #26 2door, Apr 9, 2014
    Last edited: Apr 9, 2014
  7. Matheneyr3

    Matheneyr3 Member

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    Bearings okay in the rear tire ?
     
  8. maniac57

    maniac57 Old, Fat, and still faster than you

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    If the chain is not binding in the case and the wheel stays stationary when lifted off the ground with the clutch pulled yet sometime slides on gravel, then it has to be a rear wheel or chain issue. Something is creating drag. Normal chain drag is nowhere near strong enough to drag the wheel in gravel.
     
  9. Sylph

    Sylph New Member

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    Yep! If I remove the master link and take the chain off completely, the bike can be pedaled with ease.

    maniac57: Thanks for the link about the chain rubbing. I'd read about that before, but forgot to check, and it might well be a factor. I'll have a look...
     
    #29 Sylph, Apr 10, 2014
    Last edited: Apr 10, 2014
  10. Longhaulin

    Longhaulin New Member

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    I have a couple bikes both with grubee 66cc 2 stroke motors, one rolls fine and the other has this problem you describe with the drag/friction when clutch lever is pulled in. Said motor has 3000 miles, a while ago I opened the left side where the bar and bearing are; well the bearing was smashed/crushed to 2/3 or 3/4 its original width... I found a slightly longer bar than the one that was in there and this alleviated the problem of drag. I didn't have a replacement bearing so that crushed one is still in there, it may come out with a thin magnet but I haven't a magnet to fit in there. I know they have them at harbor freight but funds are tight even for a $2.59 magnet as such for my tool bag! The bike has drag when clutch handle is pulled in and the button is pushed down to hold it in place, however if it is pulled in tight up against the handle, holding it by hand which gets tiring, it rolls easy :) Instead of holding it by hand one could wrap a small rope around it a few times... The other bike does not have this issue.

    i've also had to adjust the cable numerous times because I found that pedaling with the drag and not having the clutch lever pulled tight against the handlebar, made the cable loosen up and drag was there even with clutch lever pulled all the way in. I replaced the cable to the same effect but the bike is better than the last few months now that I know to hold it in tight when I want to pedal. Running with original clutch pads.
     
  11. Nashville Kat

    Nashville Kat Active Member

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    415 Industrial/Trike chain- here it is:

    http://www.ebay.com/itm/Kmc-3-16in-...Cycling_Parts_Accessories&hash=item27e09ec1f9

    the best thing you can do to get a better pedal, whether there's another problem or not-

    440 grams

    compared to 800 grams weight of KMC standard 415 chain

    http://www.ebay.com/itm/KMC-K415H-3...Cycling_Parts_Accessories&hash=item2c805eba38

    If you're thinking about running a smaller 410 chain-
    the Trike chain is about the same weight and rolling resistence
    but with more margin of error
    and fits on standard kit sprockets
     
    #31 Nashville Kat, Apr 10, 2014
    Last edited: Apr 10, 2014
  12. mapbike

    mapbike Active Member

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    Thats a good price on that chain NashKat, I like that its lighter weight as long as it will hold up good, I run KMC chain on all my bikes and it has always gave me great service.
    I didnt catch how many links it is per chain but I assume its like most 98Links
    Map
     
  13. maniac57

    maniac57 Old, Fat, and still faster than you

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    I'd get that bearing out of the clutch shaft while you still have a chance. If it gets mashed badly enough, you will never get it out without splitting the case and dis-assembling the entire shaft IF it will come out.
    If it's held by grease, the best way to retrieve it is to rinse the hole with some solvent to cut the grease and lay it over so gravity and a few sharp raps on the opposite end of the shaft can work it free.
    I usually use lighter fluid for this. Might need several rinsings and a brush or something to swish the grease free.
    Once that ball gets squashed enough, it will jam in the hole (if it's not already)
    Replacing the bar to take up wear is truly not a good way to handle this issue.
     
  14. Ferret

    Ferret New Member

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    Sorry to resurrect such an old thread, but are there quick-disconnects for 415 chain? Not a normal master link - a tool-less one like they make for bike chains. I can't find one? Would a 6 -speed link work?
     
  15. crassius

    crassius Well-Known Member

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    a house key across the two points and a rap with a knuckle on the key seems quick enough for me
     

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