mods

Can anyone tell this 97cc runs good? I am planning to sell my Briggs 5hp Flatheads, don't need them anymore LOLs. https://www.youtube.com/watch?v=J1mcegoPEQw

so This is my first mini bike build. I lowered and streched it out. ct70 2 peice wheels. honda clone gx200 ARC throttle plate jets intake filter with billet adapter custom header. decked head .040 I have had the bike running. However the increased compression seems to make it...

A couple of friends have challenged me to construct a minibike or race kart and race them. There are only two rules. One, we have 30 days to build. Two, we must all start with the 100 dollar HF 6.5 predator engine. I never got into the mod side of small engines or HF engines for that matter. The...

I have a few idea's for free'ing up some power on my engine (bone stock Predator, NO mods yet). Power isnt the problem, i'm running 12/72 gearing with a 13" rear tire. The front comes up when I need it. The problem is my throttle response is pretty bad. When I roll off the throttle, there is a...

What should i do on my clone for a drag bike? Its a 6.5 hp and i put on a header and briggs bullet style muffler, air filter and removed governer. So what else should i do?

recently purchased a predator 212 from harbor freight im getting ready to order parts to mount it to my db30 i keep reading about the dangers of the flywheel exploding when modding these engines... whats the most i can do with this motor safely before it is needed to upgrade to an aluminum...

Hey everyone, I'm looking at modifying my stock predator 212cc. I'm not looking for anything crazy just something fast and fun. I was looking at the higher compression head, a thinner head gasket, and an upgraded air cleaner. My questions are is how do I tell if mine is a hemi style head or not...

I have a ridiculous stupid snowblower project that includes a predator 212 engine. I removed the governor and want to keep going...not because I need to by any means but because I love modifying things...love making things absurd. So I realize that I pretty much have to put a billet flywheel...

I've recently acquired a Baja Warrior, and the lack of speed is very apparent when it is stock. I am considering buying a torque converter or possibly an air filter first, but would y'all recommend buying a predator engine seeing as they're on sale for $99 right now? I'm not quite sure if buying...

Hello, i have 6.5 predator engine and i was wondering if i just remove the governor will it give me more speed and should i replace the flywheel? Any other modification tips are welcomed!!!!!!!!!!!!!!!!!!!!!!!

does anyone know of any mods or any little tricks to get a little more out of it? its a 79 and its fun but i just want a little more. thanks Brian

Seller still has everything in the add, minus the arc billet flywheel :smile:... Dont have a clue what the mini bike frame is, not my kids style and its broken in an odd place. Motor seems cool though and has some minor mods. Good price for it all if u r serious or for the motor (well under the...

Hello everyone, I have a 6.5 hp predator engine...I was wondering are there any simple mods I can do to increase my performance?

im wondering what mods to do. I built a drift trike I know its not a chopper but same motors. I have a 3.5hp briggs and Stratton motor with the carb on the gas tank. I read port and polish and shave the eyebrows but when I look more into it people say just intake or just exhaust. what do you...

Hello all, I am new to the karting scene, but know my way around engines. I just installed a Header, filter, #90 jet, and 140 etube. It will run and stumble when choked, and when un-choked, it dies. Im rather puzzled. I also gapped the plug to .044. Also, engine has like 9 hours of run time. Any...

Can anyone or all break down the parts mod on this awesome z50? Start with seat/fiberglass mod.... thanks for any help, I'd like to clone this Earl

Since i picked up this motor last week I've been trying to decide what mods to do to it. I'm sure whatever mods I do i'll probably pick up some HP and torque and I'm sure the motor has enough of both stock. So I'm more interested in making it live at or above 4500-5000 rpms. anyone have a good...

Thought I'd get my feet we with a build and dove in deep. ARC: long rod, wiseco, .308, white stripe springs and hi-comp head, flywheel. Piston is clearing the block. Before I start tearing down and buying new gaskets, I thought I would see if I might be missing something easy. Thanks

Hey guys I'm doing a 212 predator and I bought a few parts but I still have 250 to spend Airfilter kit 26lb springs/ locks and retainers Header 1.1 to 1 rockers What else should I put into it my goal is to hit 60-70 It's gonna be just a cruiser but a fast one!!!.

I'm making my Murray a very capable hauler. First step, making it go. Problem one: 6.5 Clone with TAV wont fit without tipping the back of the engine up. Solution: (Mine anyway) Surgery. The Start. Measure twice and mark. And cut. Bolt in the engine and adjust elevation Remove...