modified

Got a bar stool racer in a trade recently and this engine was on it. I had to swap out motors because this one was too much for that bar stool. Not exactly sure how much or what has been done to this engine, but it's scary fast. The guy I got it from said it has a Weisco piston with a fresh...

3hp mini bike I'm thinking about picking this up. What do you think ?

First time to the dragstrip with my modified Byrd Wren.:smile: https://www.youtube.com/watch?v=uvojZw5JRU4

Hi, I just want to know can this model be modified? faster engine etc. I see lots about the 10 and 11 models but nothing about the 12. Thanks!

Briggs limited mod flathead. .015 over, steel bore raptor. Single bearing block. Arc 4.500 rod with wiseco piston. Stock Briggs valves with double springs, DX 420 dover cam. Block is vented and side cover modified for oiling. Gem spring box cover. Needs flywheel and carb. Engine has 2 nights...

Picked up this bike yesterday morning off craigslist. I think it started out as a bonanza bc1000. But now has different forks and a Rupp rear wheel and Rupp fenders. It's not terribly modified, but does have a few other changes. Couldn't pass it up for the price.

Anyone can be skilled and experienced and build a mini. I like to think that not knowing very much -at all- and having limited mechanical abilities will really bring a refreshing taste to a project bike. :shrug: There will be a lot of guessing, poor taste, costly mistakes, and overall bad...

Sup guys, I've been lurking here for over a year and learned a lot, but i need a little advice. I've just fitted a pz26 carb to my motor and it runs like a raped ape on full choke. opening the choke at all and it dies. i didn't have time to check for an air leak do to the massive rains here...

Just finally got the Predator together with a few mild mods Billet Flywheel Billet rod (+.020) Black Mamba Jr Cam Mikuni22 Head work (porting and polishing Old Briggs Tank on an aluminum plate mount Fuel pump mounted under tank Painted Metal Flake Silver XhBwEjUmtmQ I got some fuel coming...

GX200 with the following upgrades: ARC Billet rod Raceseng S2 Finned RevWheel Flywheel Raceseng billet aluminum push rods Raceseng 1.3 Ratio shaft mounted Roller Rockers Head ported/worked by MDB (I believe its the 18cc) Tillotson 304WX Bored and worked fuel circuitry ARC Billet side...

This is how bike looks now w/Predator 212cc engine and jackshaft.

This a pic of bike as I bought it for $50.00, engine no good.

I have a fully built predator 212cc it has about 3 hrs run time on it just built it back in January. wanting to build a gx390 in if I sell this one I can atleast get some money back on it for this build arc aluminum flywheel 32 degree 14cc head 25 intake stainless 24 intake stainless...

Anyone ever see this? just looking fr some thoughts and opinions.

Original old style wheels. Single stage Taco copy paint job blue/purple, modified Briggs FH with forged parts, cam, Mikuni 22 clone, very snappy little bike. Vintage Trail Tamers with Cebaks, Rears are 12" Ceriani's. Re-pop Stingray bars. Build Thread My favorite bike by far. Fastest...

Hacked up Cushman Eagle? Looks pretty cool.

Hi guys, I'm in the process of putting together an animal engine with a WF piston, WF rod and an AN MOD01 cam. Has anyone here done this? If so what kind of power/problems should I expect? Hopefully no problems but I have to ask. Thanks

Hey there....I've got a yellow 6.5 Clone from NR Racing with the level 1 mods...to include a CL1 Cam, OHV 6.5 Race prepped including, Open Element Air Filter adapter & Filter, removal of governor, 18 lb Valve Springs, Small fan, Advanced Timing, and Rejetted carb. I'm not running an air filter...

Two Little Indians in two weeks--just like Christmas. Was on the road for 10 hrs round trip to pick this one up. It is my first with a hole in the engine plate--date reads 3-70 + the serial#. Has original mags and 4 inch General tires. Top of frame was lengthened and at first I thought of...