performance

  1. The_Ruppster_86

    Yamaha YZ80 2-Stroke Engine

    Hi all, About 3 weeks ago I acquired a '77 Yamaha YZ80 engine at work. I was contemplating the idea of using the engine on a vintage bike. See the thread Creia created: http://www.oldminibikes.com/forum/general-minibike-talk/82777-yamaha-2-stroke-engine-mini-bike.html We are going to do...
  2. R

    Briggs 6hp performance

    I have a 1970 briggs 6hp. I'm looking for a performance muffler since mine is rotted out looking for someone to point me in rite direction. I was also thinking about bumping up compression just a little but not sure how much I can shave head and if its worth it. Also are the mods for...
  3. eodrob96

    Noob with a Powerhorse 414 and wanting to improve performance. Where to start?

    Good morning my name is Rob and I'm fairly new to the forum. I'm really glad I stumbled onto this thread because I had no idea of the dangers of removing the governors. I didn't know that flywheels could disintegrate or rods could shatter. I was waiting for my warrantees to run out before I...
  4. M

    performance websites

    what websites do u guys recomend for performance parts
  5. B

    "yard kart" performance

    I have a frame that I think is whats kalled a yard kart. Similar to this go kart - Google Search like the one on the lfet but steering and motor are on other side, how hard wud it be to lower it a inch, move the steering to the middle, move the motor to the middle, and pit a wider axle on it...
  6. The_Ruppster_86

    NOS Tecumseh Shortblock

    For sale is a NOS Tecumseh HS50 short-block. This shortblock comes with the original box, installation instructions, and gasket/decal kit. It is loaded with new block, piston assembly, rod, cam, valves, springs, and oil seals but no crankshaft. This would make a great replacement for your old...
  7. oscart

    PMR Performance Jackshaft

    PMR Performance jackshaft used on a Honda GX160. Very low usage and in great condition with no issues. Includes clutch spacer, chain and mounting bolts. $75.00 shipping extra.
  8. 125ccCrazy

    Briggs performance pack2 (300 lift)

    Briggs 5hp performance pack 2...300 lift cam, new dbl spring kit, milled and relieved head, arc 3.875 rod... that is not rust or anything on the rod, just a reflection... $100 shipped
  9. 125ccCrazy

    5hp Briggs performance parts package

    330 lift cam, 3.875 arc rod and Clements billet head $100 shipped
  10. C

    3 hp performance help

    Ive got a 3 hp kawasaki flat head tbat is very similar to a briggs. I am looking to get as muc h reliable power out of it as i can. I cleaned up tbe port casting. Plan on doing the eybrow, scrapped tbe diapbram carb and have a flo jet, plan on a header. I took out the govenor so i will need an...
  11. 125ccCrazy

    5hp Briggs performance cams

    one is 235 lift with adj cam gear...Looks like it might have been an exeperimental cam.... $25 shipped 300 lift cam, lightened cam gear.... $25 shipped will trade for Briggs Tilly intake(s) or new RLV #35 chain(s)
  12. 125ccCrazy

    Big Briggs performance cam

    I got this with a couple other 5hp cams but it's bigger than a 5hp...guessing a 6hp or bigger... It has an adjustable cam gear. pretty big looking lobes.... The gear measures 3.580" across and approx 5 1/8" long end to end.... That's about as much info as I can give ya... $25 shipped...
  13. Steelwill

    Performance parts

    Was wondering it there were many performance parts available for a 8 to 10hp motor, and if so who sells them
  14. 93notch408

    FABCOAT PERFORMANCE COATINGS (michigan)

    i couple buddys of mine do some SICKKK! powdercoat work they did a few mini's and in the process of coating my wildcat.. there work is SHOW QUALITY!!! for the best price around...there located in flatrock michigan.. heres there facebook link.. Fabcoat Performance Coatings | Facebook u can...
  15. O

    Tecumseh HM80 performance parts

    Tecumseh motorsports billet rod out of tecumseh star engine. Fit hm80 engines. $60 shipped Light flywheel, hot coil and coil adapter. This is a briggs flywheel that was retappered to fit the hm80 crank. It is 3 pounds lighter then a stock hm80 flywheel. comes with hot coil and an adapter that...
  16. wyody

    Tecumseh High Performance motors and parts

    These ohv motors are used but have lots of work done to them like-- lighten and balanced cranks, needle bearing cam bearings, high performance cams,valve springs,billet rods,high performance pistons, hot coil, one tilloston carb and manifold and lots of extra parts. also some new big valve...
  17. H

    2stroke performance

    What can I do for some performance on a weed wacker engine, 26cc 2stroke. Exhaust?where? Bigger carb?where?how much? Cam? Idk about 2strokes. Thanks ahead of time
  18. nigel

    grav feed carb

    were can i get a good gas gravity feed carb for 5hp briggs that will fit a 32mm air filter?
  19. C

    good place to buy 5hp performance parts

    so might be gettin a gocart with a flat head 5hp b n s motor andwonderin wher to buy performance parts
  20. B

    Clone Cam Dilemma

    new to the site and would appreciate any advice i can get. Having trouble choosing a new cam. Engine is powering a modified baja heat. Not track ridden or raced, just an around town and country bike. looking for higher rpm without killing the low end. dont need a torque monster just descent...
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