Best 212cc Engines for Mini Bikes and Go-Karts (2026)
The best 212cc engines for mini bikes and go-karts: Predator 212, GoPowerSports electric start, maXpeedingrods, GENMAX and VEVIVOOVY, by shaft and start.
Affiliate disclosure: product links on this page go to Amazon or to the maker's own store. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you; links to makers' own stores earn us nothing. No retailer or brand sees our picks before they are published or has any say in them. How we choose.
The GoPowerSports 212cc electric start engine is the 212cc engine we would buy for a mini bike or go-kart: a 7 HP four-stroke OHV with a 3/4 in horizontal shaft and push-button starting (per the Amazon listing). For pull start and published shaft specs, the GENMAX GM212R lists a 3/4 in by 2.43 in shaft, a 3/16 in keyway and 8.85 ft-lb at 2,500 RPM.
Picks were compared on shaft size and keyway, start type, published torque and warranty. The Predator 212 is the common reference engine; its listing says it is not certified for California.
Our top picks at a glance
1. Best overall
GoPowerSports 212cc electric start enginePower: 7 HP · Shaft: 3/4 in horizontal · Start: Electric · Warranty: Not stated
2. Best published specs
GENMAX 7 HP 212cc enginePower: 7 HP, 8.85 ft-lb · Shaft: 3/4 x 2.43 in, 3/16 key · Start: Recoil · Warranty: 2-year service plan
3. Best known
Predator 212cc 6.5 HP enginePower: 6.5 HP · Shaft: Horizontal · Start: Recoil · Warranty: Not stated
4. Best for shaft fit
maXpeedingrods 7 HP 212cc enginePower: 7 HP · Shaft: 3/4 x 2.43 in, 3/16 key · Start: Recoil · Warranty: Not stated
5. Best big tank
VEVIVOOVY 7.5 HP 212cc enginePower: 7.5 HP · Shaft: 3/4 x 2.43 in, 3/16 key · Start: Pull · Warranty: 12 months
| Pick | Power | Shaft | Start | Warranty | Buy |
|---|---|---|---|---|---|
| GoPowerSports 212cc electric start engineBest overall | 7 HP | 3/4 in horizontal | Electric | Not stated | Amazon |
| GENMAX 7 HP 212cc engineBest published specs | 7 HP, 8.85 ft-lb | 3/4 x 2.43 in, 3/16 key | Recoil | 2-year service plan | Amazon |
| Predator 212cc 6.5 HP engineBest known | 6.5 HP | Horizontal | Recoil | Not stated | Amazon |
| maXpeedingrods 7 HP 212cc engineBest for shaft fit | 7 HP | 3/4 x 2.43 in, 3/16 key | Recoil | Not stated | Amazon |
| VEVIVOOVY 7.5 HP 212cc engineBest big tank | 7.5 HP | 3/4 x 2.43 in, 3/16 key | Pull | 12 months | Amazon |
Best overall
GoPowerSports 212cc electric start engine
For riders who want electric start.
- Power
- 7 HP
- Shaft
- 3/4 in horizontal
- Start
- Electric
- Warranty
- Not stated
Pros
- Electric start
- Built for go-karts and minibikes
Cons
- Needs a battery and wiring
GoPowerSports lists a 7 HP 212cc four-stroke OHV engine with a 3/4 in horizontal shaft and electric start, for go-karts and minibikes (per the Amazon listing).
Best published specs
GENMAX 7 HP 212cc engine
For builders who want the shaft dimensions in writing.
- Power
- 7 HP, 8.85 ft-lb
- Shaft
- 3/4 x 2.43 in, 3/16 key
- Start
- Recoil
- Warranty
- 2-year service plan
Pros
- Torque figure published
- 0.95 gal tank
Cons
- Pull start
GENMAX lists a 3/4 in (19 mm) by 2.43 in shaft with a 3/16 in keyway and 5/16-24 UNF thread, 7 HP and 8.85 ft-lb of torque at 2,500 RPM, a 0.95 gal tank and a 2-year limited service plan (per the Amazon listing).
Best known
Predator 212cc 6.5 HP engine
For builders following a Predator 212 parts list.
- Power
- 6.5 HP
- Shaft
- Horizontal
- Start
- Recoil
- Warranty
- Not stated
Pros
- The engine most mini bike parts list fitment for
- Fuel shut-off
Cons
- Not certified for California
- Sold by a third-party seller here
This Predator 212 listing is a 6.5 HP 212cc OHV horizontal-shaft engine with recoil start and a fuel shut-off, marked not certified for California (per the Amazon listing). Most torque converters, carburetors and exhausts in our parts guide list Predator 212 fit.
Best for shaft fit
maXpeedingrods 7 HP 212cc engine
For replacing an engine with a 3/4 in keyed shaft.
- Power
- 7 HP
- Shaft
- 3/4 x 2.43 in, 3/16 key
- Start
- Recoil
- Warranty
- Not stated
Pros
- Bore x stroke 70 x 55 mm
- 5/16-24 drilled and tapped shaft end
Cons
- Warranty not stated
maXpeedingrods lists a 3/4 in (19 mm) shaft, 3/16 in keyway, 2.43 in shaft length, a 5/16-24 drilled and tapped end and a 70 x 55 mm bore and stroke (per the Amazon listing).
Best big tank
VEVIVOOVY 7.5 HP 212cc engine
For long riding sessions between refuels.
- Power
- 7.5 HP
- Shaft
- 3/4 x 2.43 in, 3/16 key
- Start
- Pull
- Warranty
- 12 months
Pros
- 3.6 L fuel tank
- 12-month warranty
Cons
- Listing gives two different bore and displacement figures
VEVIVOOVY lists a 3/4 in shaft with a 3/16 in keyway, a 0.6 L oil capacity, a 3.6 L fuel tank and a 12-month warranty (per the Amazon listing). Its listing gives both 70 x 55 and 70 x 56 mm bore and stroke and both 212cc and 210cc, so confirm with the seller.
How we chose
Engines were compared on shaft diameter, keyway and length, start type, published torque, tank size and warranty from the listings.
Fitting a 212cc engine
Shaft
Most mini bike clutches and converters take a 3/4 in shaft with a 3/16 in keyway. GENMAX, maXpeedingrods and VEVIVOOVY all list a 2.43 in shaft length. Check that your clutch or torque converter matches.
Electric or pull start
Electric start needs a battery and wiring; the electric-start Zyliathor go-kart in our go-kart picks uses a 12V 9Ah battery with a pull cord backup. Pull start is simpler and lighter.
Fuel and oil
Follow the engine maker's fuel rule. For comparison, Coleman's CT200U manual calls for unleaded of at least 86 octane, no more than 10% ethanol, and SAE 10W-30 oil, 0.63 qt (0.6 L). VEVIVOOVY lists a 0.6 L oil capacity.
Emissions
The Predator 212 listing is marked not certified for California. California buyers should check certification before buying any engine.
What to skip
Skip any engine whose shaft does not match your clutch, and skip running a new engine without oil: most ship dry. The first oil change is early; Coleman's schedule changes oil at the first month or 20 hours, as covered in the maintenance schedule.
Frequently asked questions
What is the best 212cc engine for a mini bike?
The GoPowerSports 212cc for electric start (7 HP, 3/4 in shaft) or the GENMAX GM212R for published shaft specs and torque (8.85 ft-lb at 2,500 RPM).
What shaft size is a 212cc engine?
Usually 3/4 in (19 mm) with a 3/16 in keyway; GENMAX, maXpeedingrods and VEVIVOOVY list a 2.43 in shaft length.
How much horsepower is a 212cc engine?
Listings here give 6.5 HP (Predator 212) to 7.5 HP (VEVIVOOVY). GENMAX lists 7 HP and 8.85 ft-lb of torque at 2,500 RPM.
How much oil does a 212cc engine take?
VEVIVOOVY lists 0.6 L. Check your engine's manual; most ship without oil and must be filled before the first start.
Is the Predator 212 legal in California?
This listing says the Predator 212 is not certified for California. Buyers there should look for a California-certified engine.
Sources
- Coleman Powersports CT200U Owner's Manual, Coleman Powersports
- F-6 Comet Belt Alignment and Tension (Shop Notes), King Midget Car Club
Cover image: Illustration: Mini Bike Review (AI-generated)
Related guides
Best Coleman Mini Bike Parts: CT200U and BT200X Replacements
Replacement and upgrade parts that list Coleman CT200U and BT200X fit.
Best Dirt Bike Stands: Lift Stands for Pit Bikes and Mini Bikes
Fixed and lift stands for chain, tire and wheel work on pit and dirt bikes.
Best Go-Kart Seats: Bucket Seats, High-Back Seats and Harnesses
Replacement seats and a 4-point harness for off-road go-karts.