6.5 predator and cruiser bike

[professor]

Three inches is a good amount to add to the frame. It smoothes out the handling.
Here are some pics of the 212 bike.
Now, this bike is real long (looks weird - handles awesome) because I extended the rear section (a little too much) for the full suspension.
I just figured out how to attach pics with this new format -

 

[professor]

Here is bike one, a pic of an isolator and my thumb throttle made from a gear selector-

 

[Milkshake]

Hi everyone. I weigh 203 pounds and I currently have the 49 cc 2.5 horsepower. And it barely pulls me up hills. I have to pedal and the engine strains a little. so I thought about getting 212 CC Predator engine, but I read that that one has 6.5 horsepower and I was thinking it should have no problem pulling me up the hill. But I don't really want to spend that much money so my question is will the smaller Predator engine the 79 CC marked at 3 horsepower be good enough to pull me up hill? I don't really know what half horsepower more would do.

 

[Frankfort MB's]

Hi everyone. I weigh 203 pounds and I currently have the 49 cc 2.5 horsepower. And it barely pulls me up hills. I have to pedal and the engine strains a little. so I thought about getting 212 CC Predator engine, but I read that that one has 6.5 horsepower and I was thinking it should have no problem pulling me up the hill. But I don't really want to spend that much money so my question is will the smaller Predator engine the 79 CC marked at 3 horsepower be good enough to pull me up hill? I don't really know what half horsepower more would do.

The 79cc is right at the same price as the 212cc.
I'm actually in the process of building a 212 predator bike

The hardest part about a 212 is the shear size of such a big motor
I had to chop up an old frame to get it too fit...
I'm also working on wheels for it too. It's going to have a double wall rim with disc brake in front with a double wall rim in the rear (I'm not running pedals so hub mainly just spins lol)

My engine actually has been used for a racing go kart engine that's been rejetted, shorty straight pipe exhaust, UNI high flow air filter, heavier valve springs, removed governer.... I can't remember something else
It has a CVT clutch that came with the engine that takes a 35# chain I'm going to use but I don't know how to put a sprocket like that on the hub.....
Any suggestions or comments???


I haven't rode the bike yet since I'm still building it but so far the engine seems like a good powerplant (It's a foot wide so that will be fun)
I'll post later with my feelings on how the 212 can be used

 

[bakaneko]

Hi everyone. I weigh 203 pounds and I currently have the 49 cc 2.5 horsepower. And it barely pulls me up hills. I have to pedal and the engine strains a little. so I thought about getting 212 CC Predator engine, but I read that that one has 6.5 horsepower and I was thinking it should have no problem pulling me up the hill. But I don't really want to spend that much money so my question is will the smaller Predator engine the 79 CC marked at 3 horsepower be good enough to pull me up hill? I don't really know what half horsepower more would do.

i dont think the 49cc is actually 2.5 hp. lots of funny conversions and which hp metric used and etc going on

 

[bakaneko]

I'll post later with my feelings on how the 212 can be used

gluck, man. looking forward to seeing the it running

 

[saw]

Hi everyone. I weigh 203 pounds and I currently have the 49 cc 2.5 horsepower. And it barely pulls me up hills. I have to pedal and the engine strains a little. so I thought about getting 212 CC Predator engine, but I read that that one has 6.5 horsepower and I was thinking it should have no problem pulling me up the hill. But I don't really want to spend that much money so my question is will the smaller Predator engine the 79 CC marked at 3 horsepower be good enough to pull me up hill? I don't really know what half horsepower more would do.

Well Milkshake, it sounds like something is geared wrong here...I've built a few of these with the same engine to include a tandem that the wife and I ride up hills without problems. Is your engine reaching max rpm? Using the right fuel? 87 octane..the good ole cheap stuff? Did you make sure the fuel tank was nice and clean before the build? You would be surprised at what I've found inside of them. A clean fuel filter? I've had to take the carb apart before..cause there was junk in the jets also.

 

[darkangel]

Hello, Professor. Thanks for the reply and information. Don't think I will be riding here for a while, it's 3 degrees in the day and below zero at night. Can't wait for spring. I think I will also lengthen my bike or the next one I get to take the 6.5. The one I have now is an 80cc engine kit and it is very unreliable but it does go about 25 to 30mph. This one I will be getting a 79cc from HF. It will have a jackshaft and centrifugal clutch along with all the lights also removing the governor. This I think should be simple and good enough for me. I do have a Laser 5 49cc moped that will only go 30 to 35 mph and is a gutless wonder at stop signs and hills. It's all fun to work on. looking forward to your pictures to size up the frame Thanks Ron

Putting a 212cc on a bike is not impossible, hundreds of people have done it including me, just have make sure you have good parts, beefed up rims are a must and brakes, im building a 212cc with a turbo, and fuel injection kit, about 4k just in the engine, yes some will say its stupid but i want to build my dream bike. To give an idea about rims, mine are being custom made and are costing 600, and doing a custom low rider frame, when thinking about a frame just keep in mind you will need 16"x13" high just for the engine and that is without a gas tank on top, but you can remove the oil sensor and mount it vertically (valve cover sticking up) i was told i couldnt do a turbo and im going to proove everyone wrong. Hope this helps any.

 

[richardisaworrywort]

You mean the 200+cc ehgine that weighs 38 lbs? I'd recommend a motorcycle frame.

Yeah i guess you'd recomend to watch a skydiving movie instead of accualy doing it IRL.

 

[jaywalker]

Yeah i guess you'd recomend to watch a skydiving movie instead of accualy doing it IRL.

Putting a 212cc on a bike is not impossible, hundreds of people have done it including me, just have make sure you have good parts, beefed up rims are a must and brakes, im building a 212cc with a turbo, and fuel injection kit, about 4k just in the engine, yes some will say its stupid but i want to build my dream bike. To give an idea about rims, mine are being custom made and are costing 600, and doing a custom low rider frame, when thinking about a frame just keep in mind you will need 16"x13" high just for the engine and that is without a gas tank on top, but you can remove the oil sensor and mount it vertically (valve cover sticking up) i was told i couldnt do a turbo and im going to proove everyone wrong. Hope this helps any.

i want to know if you did that turbo thing with 212cc ?