ratio

  1. C

    Fat Guy MiniBike

    Ok, guys I need some advice. So I bought an old Manco trike, pictured below. And I want to convert it to a fat guy minibike…. So the trike has an 8hp Briggs and a 40 series clutch on it. My idea is to narrow and lengthen the rear end so I can fit the rear tire without repositioning the shaft...
  2. ian6199

    Question regarding my clutch.

    Should I have gotten a 12 tooth clutch rather than a 17 tooth clutch? I have a 7hp engine and a 70 tooth rear sprocket and i bought a Max torque 17t SS clutch, will it take longer to get up to max speed?
  3. Full Throttle

    compression ratio

    Any way of telling about how much the compression ratio is by running a compression test on engine after you do all your mods ?
  4. jewwlion

    Altered gear ratio

    I just bought a 60 tooth sprocket for my bike, going to get it in the mail in a couple days. The bike has a 12 tooth clutch and a 72 tooth sprocket right now, meaning that I'd be going from a 6:1 to a 5:1 gear ratio once I change the sprocket. Also running a 212 Predator w/ governor still on...
  5. Broncco1978

    Slow broncco! Help!!!

    Hi there, I am new to the minibike thing and I bought an old Broncco and after measuring the engine plate, I found that a 6.5 212 Predator would not fit on my application due to the clutch not lining up with the rear sprocket. I previously installed a 79cc on my daughter's go kart with a...
  6. S

    AH47 oil ratio

    What is the gas to oil ratio for a Power Products AH47?
  7. Bore / Stroke in an Engine

    Bore / Stroke in an Engine

    Bore / Stroke in an Engine
  8. J

    Installing 1.1 ratio rockers

    Will I new to change anything if I put the champion rocker in a box stock project, Also can I run the rockers with the stock studs or do I have to use the ones the rockers come with
  9. 1967 Tempest

    too high gear ratio for a 79CC

    My 212 Pred is just to much engine for the ARCO. WAY too easy to wheelie and the kids are happy going 20 mph.:shrug: The 79CC engine moves me along but I think the 11 tooth drive gear and 60 tooth driven gear might be too high for this bike with 6" tires.:confused: Once you get this thing out...
  10. ajak81

    gear ratio and speed

    I have an old jc penny mini fun buggy that i put a new predator 212 on. It accelerates fast but has no top end. Its a 12 tooth clutch 41 tooth on the diff. Then off the dif a 15 tooth to a 72 on each wheel. Im new to this gearing thing how can i get more speed? Thanks for any help that can be...
  11. Sunset5523

    Gear ratio

    11t 13t 18t 54t With a 18 in tire? Is my gearing ok for that tire size? I know my gear ratio is 3.55
  12. C

    ratio rocker only on the intake?

    why do some people only put ratio rocker only on the intake ? :shrug:
  13. T-Town Mini

    Gear Ratio

    I need some help with the gear ratio through a jackshaft. The current setup I have is: 10 tooth sprocket_____Clutch 9 tooth sprocket______Jackshaft primary 9 tooth sprocket______Jackshaft secondary 40 tooth sprocket_____Rear Additional info: The clutch is a Maxtorque and the...
  14. Txpowdercoater

    gear ratio calculator = I'm confused

    help, I think I am confused as to the final gear ratio that I have planned and the correct gears needed. I used a gear ratio calculator I found on the internet, but dont know where I saved it from anymore, anyways here is what I want and then the items I bought. I want a ratio in the high 7- 8...
  15. S

    gear ratio

    I have a 8hp Briggs & sStratton that has a gear reduction box on it how can you tell what the box reduced the ratio to. If someone could answrer this it would be greatly appreciated
  16. jdogg

    T/C + Jackshaft gear ratio help

    Have looked but only finding info for jackshaft ratios, nothing with a T/C hooked to a jackshaft. This is the final hurdle and then will be able to put my Trail Blazer together and test run and then off to paint!!!! What I have for power plant is a 212 Predator Keihin 26mm carb and intake...
  17. Koritz_Razor_093

    Koritz_Razor_093

  18. J

    help with jackshaft gear ratio

    I installed a jackshaft on my minibike and need some help :shrug: I have a 6.5 hp running methanol big insides honda/clone motor totally modified - Question: my first jackshaft gear is 13t my second gear has 18t gear itself is 56t how do i figure out if this is good or what...
  19. vwfan79

    Gear ratio question

    Does it make a difference on how you make your gear ratio. For example if I want to run 5:1 ratio does it make a difference if you go 13t to 65t or a 14t to a 70t. I have a assortment of rear gears and clutches from a 12 through a 17 except a 15. I guess what I'm saying is it better to run a...
  20. jbe24jg

    Gear ratio help

    I'm re doing the jackshaft on my wards ( the original two speed clutch is shot ) and here is the setup I'm planning. 11 tooth clutch 18 tooth jackshaft input 10 tooth jackshaft output and 60 tooth on the wheel. Ive already bought most of the parts except for the jackshaft input. And I'm running...
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