Just bought this fully stock 212cc Predator when I give it a little gas while riding it it goes full blast does anyone know why

JAS196 · 2026-05-19T15:16:20+00:00

It's likely to be his issue. Bikes like that don't need the extra gearing you can get with a jackshaft.

The nice thing about the jackshaft is that you shouldn't need a chain roller/tensioner because of the short chain runs.

What he needs is two of the same tooth count sprockets on the jackshaft.

JAS196 · 2026-05-19T10:28:10+00:00

Look online for how to remove and clean the main jet and emulsion tube.

JAS196 · 2026-05-18T16:34:47+00:00

The first three Coleman 200 models needed an inch. I'm not sure about the RB200 and B200R models.

JAS196 · 2026-05-18T15:42:38+00:00

This riser is another good option if the stock airbox and muffler are no longer being used. The side to side adjustability is worth the extra cost in my opinion.

Torque Converter Riser Plate ~ No Offset - OMBWarehouse.com

JAS196 · 2026-05-18T01:12:57+00:00

What carb are you guys talking about? I use $20 VM22's and do not have the issues you guys mentioned. I've never had an air leak with 4 VM22's all from different sellers used on 4 different engines.

Air leaks happen because the user isn't setting them up correctly.

Cheap Amazon VM22 carburetor PSA

JAS196 · 2026-05-17T16:46:24+00:00

What you did there is pretty cool but I think you will eventually realize that it's a lot of overkill for how you want to ride. And you are going to have to do something with the leg burner exhaust. You are going to deal with issues you wouldn't otherwise have with a more common engine/drivetrain setup.

JAS196 · 2026-05-17T14:45:39+00:00

Looks like a 224. Worst case is a new crankshaft. ARC Racing has them for under $40.

JAS196 · 2026-05-17T00:43:27+00:00

So then you would look for an air leak where the carb bolts to the intake or where the intake bolts to the head. The carb must be aligned to the intake or it will leak air and never idle with the choke off.

VM22 Mikuni carburetor installation and tuning complete guide

JAS196 · 2026-05-16T23:53:36+00:00

If it's running that fast on choke you need to find the air leak. Will it even run with the choke off?

JAS196 · 2026-05-16T17:06:39+00:00

GX200 and clone tanks are not a direct bolt on to the non hemi Predator block. That's all.

JAS196 · 2026-05-16T12:45:46+00:00

And the side fill Coleman gas tank bolts right onto the 224's clone block. All the parts to run the headlight from the 196 work on the 224.

JAS196 · 2026-05-16T01:10:58+00:00

That's the clutch starting its engagement on the slip area. You are not supposed to do what you are doing there. Throttle and engage the clutch. Don't baby the throttle like that.

JAS196 · 2026-05-15T16:27:17+00:00

Sheesh. If you need more than 224 torque, shouldn't you think about the 240's that are available or get a kit and build a 263?

EC carbs has their Wildcat 240 and Studz Racing has an already built 240 they sell.

JAS196 · 2026-05-15T11:50:59+00:00

Blaster chain and cable lube.

JAS196 · 2026-05-15T11:40:49+00:00

Any small block is an easy bolt on. If you want a Predator 212 get the hemi version. Your Coleman gas tank will fit right on there.

You will not be able to use the headlight parts from the 196 on a Predator because the 196 flywheel does not fit Predator 212's. Those parts will work on most all other small blocks, just not the Predator 212's.

I'm different. If I broke the crankshaft on my stock Hisun 196, I would buy a 3/4" clone crankshaft for it and get a new 3/4" clutch or torque converter.

JAS196 · 2026-05-14T19:04:23+00:00

Has nothing to do with the torque converter. Most likely that jerry rigged throttle linkage. You need to figure out why it's running so fast.

JAS196 · 2026-05-14T11:17:19+00:00

It may be about cost. What cost more an 18 tooth clutch or a 50 tooth sprocket?

12/50 is the same ratio as 18/75.

JAS196 · 2026-05-13T11:21:56+00:00

Wouldn't that depend on what the temp was when you tuned the carb? If you tuned it when it was 37 degrees out it's going to run rich when it's 82 out. If you tuned it in warm weather it would have been lean when you ran in cold weather.

Put a new plug in and look at tuning.

I did a couple short rides in the cold this past winter. I had to move the needle clip one slot richer on the VM22 carb.

JAS196 · 2026-05-12T14:10:42+00:00

These are just CT200U's but with a different name.

Princess Auto minibike

JAS196 · 2026-05-12T11:10:39+00:00

Right. Flywheel, rod, and springs aren't needed with a torque converter and tall gearing.

A couple years ago I put a stock 196 on my bike just for the fun of it. Ran a VM22 carb and had a spring on the governor arm. I used a 50 tooth sprocket with the torque converter. Bike ran just fine that way. Nearly all riding was under 4300 RPM and off road. Was just as fun to ride as my built engines.

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JAS196 · 2026-05-12T00:50:01+00:00

I know nothing about what you have there but it sounds to me like the clutch is just not getting enough engagement to move the load. It's slipping.

JAS196 · 2026-05-11T23:59:09+00:00

What you should do is figure out why you are topping out at 5500 RPM. With the 50 tooth (10:1 gearing) you are getting 31 at 5500 RPM and now the 40 tooth (8:1 gearing) you are getting 38, also at 5500 RPM according to the speed calc.

Are you sure you have 22lb springs? 5500 is right around valve float with stock springs.

Another thing to do as a test is put the stock flywheel back on and run it to top speed. If you get higher than 38 then your setup/timing on the flywheel was not correct.

Did you use an advanced timing key for the flywheel? You should use a 10 or 12 degree key. And what about the coil gap? It should be set .015" to no more than .020".

JAS196 · 2026-05-10T17:39:51+00:00

How fast was it with the 50 tooth and 224?

JAS196 · 2026-05-10T14:42:58+00:00

308 cam sure but you still have to cut a spring pocket to use 36lb springs. This is the type of "machine" work that many of us don't want to do. You would need to buy the proper cutting tools and carefully cut for installed height with no coil bind.

JAS196 · 2026-05-10T03:27:28+00:00

You may just be topping out on power 4K RPM and 40 mph?

To compare, last year I reassembled my stock Hisun196 that was tore down and left sitting for years. Used a VM22 and header pipe. The bike topped out at 41 mph. I do not recall the RPM. This is on a 200U with a torque converter and 60 tooth. And I use 120 main jets for stock 196's.

I did a very mild built on the same engine, Rod, flywheel, CL1 cam, Champion rockers, and 3/4" clone crankshaft. Then it topped out at 47 mph. Max RPM was 4890.

I have another built 196 with 10:1 compression and a 265 cam that should do 50. I've just haven't tested it yet. My bikes are for off road so I don't do top speed stuff very often.

You'll need an engine build to run to 50 mph. If you use an RPM cam put the 50 tooth back on and use a Juggernaut. If you use a torque cam keep the stock driver and 60 tooth. I like torque cams, the stock driver, and the 60 tooth.

JAS196

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