Discussion in 'General Questions' started by Gordon smith, Jul 17, 2016.

  1. Gordon smith

    Gordon smith New Member

    Hi, is there anyone out there who can tell me wether or not I can change my 32 sprocket with
    A 44/52 tooth sprocket to increase the power of my bike, so that I can go hopefully go up hills easier. Not bothered about increasing my speed.
    Thanks Gordon smith.

  2. Frankenstein

    Frankenstein Active Member

    Of course, 44 is the standard, should give a big advantage vs the 32 on Hills, while also maintaining a fair speed, 52 is even more Hill climbing power.

    You'll need a longer chain in either case, to make up for the larger diameter
  3. Gordon smith

    Gordon smith New Member

  4. Gordon smith

    Gordon smith New Member

    Hi thanks for your reply, your right I do have a 44 sprocket on my bike , I thought it was a 32, tried on eBay for a 52 sprocket but they don't seem to available. Do you know of , or is there such a thing as a 52 or bigger than 44 tooth sprocket ? Thanks Gordon Smith.
  5. bakaneko

    bakaneko Active Member

    It is 56
  6. crassius

    crassius Well-Known Member

    I've seen 48T.
  7. Gordon smith

    Gordon smith New Member

    Hi thanks for your quick reply , I think I'll put the 52 on and see how I go. Thanks
  8. Frankenstein

    Frankenstein Active Member

    Good luck I hope it does you good, if you wanted to you can get a jackshaft, if your willing to spring about $200, it will make life way easier in the long run, and it let's you use your gears, so in the hills just drop to first or second and putt right up, once you're on the flats go and rip loose and get that good acceleration and speed without toasting the engine.
  9. Steve Best

    Steve Best Active Member

    Gordon, there are several small tricks to improve the power of the motor so you don't have to revert to a lower ratio.

    1) jet the carb (typically leaner) with different jets and needle position. Read up on "Plug Chop".
    2) Cut a squish band on your head out to bore diameter (40/47mm), then set the squish gap t 0.030" with gaskets
    3) portmatch the exhaust pipe flange and gasket with a 3/4" drill

    These 3 "tricks" will gain plenty of power for the hills.

  10. Diamond Back

    Diamond Back Member

    GO TO Lynn@CustomMotoredBicycles.com

    They have 32-36-38-39-40-44-48-50-52-54-58-60-62 tooth sprockets in all bolt patterns and steel and aluminum, flat or dished, thick or thin, and 410 and 415 chain,,,great selection,,

    but something is power robbing your bike,, i have a 44 tooth and gain speed on hills and 38mph on flats,,, i never peddle even taking off on hills

    listen to Steve he is brilliant ant wont give you bull crap,,
    did you ever take your cylinder off and clean all casting imperfections and lips on transfer ports,, plus widen the exhaust port 2mm on each side and 2mm off the top, intake you can widen a hair on each side ( watch your rings on piston they dont catch in port opening))) and put your cylinder on and look thru intake port while the piston is at top dead center( as far up as it can go)) look in your intake port and with a marker color in part of piston skirt that you see, remove cylinder and piston and Ddremel gring out the marker section,, also you can double your base gasket and while your down there put PLAY-DOUGH clay all down in case so nothing can get in,, now place your bas gasket on bottom of cylinder,,

    do you see all that over lapping gasket does,, well trim it with exacto knife to fit and line up perfect,, now take gasket and place on the case as if you were installing,,take a thin marker and color in all metal on the inside of gasket,, with play dough firmily in there pressed every ware tight,, tremel that extra metal at a 45*degree angle,, you just want to bevel it so there is an even flow with no hang ups into transfer ports,, and port match you exhaust outlet to your exhaust opening by gringing exhaust pipe mounting flange to shape of exhaust port,,, watch you dont go thru welds in pipe flange

    doing all this will take some time and make yo feel like a dentist,, but like steve said your engine will increase a lot in power and revs,,,take your time and make shure you go into cylinder and chamfer all edges at an angle so your rings dont snag on them

    get some micro drills sizes .060--.080 and solder, take your main jet out of carb and put a very,very,very small tip,bit of solder on it,,, hold over candle till it melts,,, take micro drills start with.065 and drill thru solder in main jet,, instal,, adjust float height to 22mm,, put black e-clip in top slot on needle... if you are two lean after it fully warms up,, re drill main jet up to .067 and keep repeating this process till it runs good

    need any help doing this PM me,, or ask Steve if he will help you,, he is amazing at this stuff