79cc 3 HP Mini Bike & Go-Kart Engine
$189.99
| Specification | Details |
|---|---|
| Engine Type | 4-Stroke, OHV (Overhead Valve), Single Cylinder |
| Displacement | 79 cc |
| Horsepower | 3 HP @ 3600 RPM |
| Max. RPM | 3600 RPM |
| Max. Torque | 3.5 ft-lbs @ 2500 RPM |
| Cooling System | Forced Air Cooling |
| Ignition System | Transistorized Magneto |
| Start Type | Recoil Start (Pull Cord) |
| Fuel Type | 87+ Octane Unleaded Gasoline |
| Fuel Tank Capacity | 0.53 – 0.75 Gallons (approx. 2 – 2.85 Liters) |
| Oil Capacity | 0.36 – 0.4 Quarts (approx. 0.35 – 0.4 Liters) |
| Oil Type | SAE 10W-30 (API Service Classification SF or newer) |
| Low Oil Shutdown | Yes |
| Shaft Rotation | Counter-Clockwise (from PTO shaft side) |
| Shaft Diameter | 5/8 in. (15.875 mm) |
| Shaft Length | 2.4 in. (60.1 mm) |
| Shaft Keyway | 3/16 in. |
| Shaft End Tapped | 5/16″-24 UNF |
| Mounting Pattern | 102mm L x 104mm W – 61.5mm W (4 in. L x 4.9 in. W – 2.4 in. W ) |
| Bore x Stroke | 52 mm x 46 mm |
| Compression Ratio | 8:1 – 9.1:1 |
| Spark Plug | NGK BP6HS or Champion L92YC (Gap: 0.028-0.03 in.) |
| Dry Weight | Approx. 22 – 26.65 lbs (10 – 12 kg) |
| Noise Level | 104 dB |
79cc 3 HP OHV Horizontal Shaft Engine – 4-Stroke Gas Motor for Mini Bikes & Go-Karts >> 79cc predator engine
79cc predator engine Breathe new life into your mini bike or go-kart project with this powerful and efficient 79cc 4 stroke engine. Designed as a direct replacement for popular models like the Baja Doodle Bug and Coleman CT100U , this 3 HP motor delivers reliable performance with easy recoil starting and excellent fuel economy. Whether you are building a custom bike or replacing a worn-out motor, this engine is the perfect powerplant for your next adventure.
Key Features & Benefits
-
Reliable 3 HP Power: With a displacement of 79cc, this engine delivers 3 horsepower at 3600 RPM, providing ample torque for trail riding and cruising .
-
Durable Cast-Iron Cylinder: The cylinder features a cast-iron sleeve that withstands wear and abuse, ensuring the engine runs longer than standard utility motors .
-
OHV (Overhead Valve) Design: Overhead valves provide cooler, cleaner performance, better fuel efficiency, and easier starting compared to traditional flathead engines .
-
Horizontal Shaft: The horizontal shaft is specifically designed for mini bikes and go-karts, allowing for easy clutch or torque converter installation.
-
User-Friendly Recoil Start: Equipped with a reliable recoil pull start for quick and effortless ignition every time .
-
EPA Certified: This engine is EPA certified, meaning it meets federal emissions standards for environmentally responsible operation .
Technical Specifications
We believe in total transparency. Below are the full specifications for the 79cc 3 HP engine to ensure it fits your project perfectly.
| Specification | Details |
|---|---|
| Engine Type | 4-Stroke, OHV (Overhead Valve), Single Cylinder |
| Displacement | 79 cc |
| Horsepower | 3 HP @ 3600 RPM |
| Max. RPM | 3600 RPM |
| Max. Torque | 3.5 ft-lbs @ 2500 RPM |
| Cooling System | Forced Air Cooling |
| Ignition System | Transistorized Magneto |
| Start Type | Recoil Start (Pull Cord) |
| Fuel Type | 87+ Octane Unleaded Gasoline |
| Fuel Tank Capacity | 0.53 – 0.75 Gallons (approx. 2 – 2.85 Liters) |
| Oil Capacity | 0.36 – 0.4 Quarts (approx. 0.35 – 0.4 Liters) |
| Oil Type | SAE 10W-30 (API Service Classification SF or newer) |
| Low Oil Shutdown | Yes |
| Shaft Rotation | Counter-Clockwise (from PTO shaft side) |
| Shaft Diameter | 5/8 in. (15.875 mm) |
| Shaft Length | 2.4 in. (60.1 mm) |
| Shaft Keyway | 3/16 in. |
| Shaft End Tapped | 5/16″-24 UNF |
| Mounting Pattern | 102mm L x 104mm W – 61.5mm W (4 in. L x 4.9 in. W – 2.4 in. W ) |
| Bore x Stroke | 52 mm x 46 mm |
| Compression Ratio | 8:1 – 9.1:1 |
| Spark Plug | NGK BP6HS or Champion L92YC (Gap: 0.028-0.03 in.) |
| Dry Weight | Approx. 22 – 26.65 lbs (10 – 12 kg) |
| Noise Level | 104 dB |
Note: Specifications are approximate and may vary slightly by manufacturer. Always check your existing mounting pattern before purchasing . 79cc predator engine
What’s Included
-
79cc 3 HP OHV Horizontal Shaft Engine
-
Spark Plug Wrench
-
Owner’s Manual & Safety Instructions
Please Note: Engine is shipped without oil. You must add the correct amount of SAE 10W-30 oil before starting to prevent damage .
Common Applications & Fitment
This engine is an ideal replacement for many popular mini bikes and go-karts, including:
-
Baja Motorsports: Baja Doodle Bug (DB30), Blitz, Dirt Bug, Racer
-
Coleman: CT100U
-
General purpose: Mini choppers, small go-karts, tillers, and water pumps
Installation Note: While this engine is designed to fit most standard frames, some applications may require minor modifications such as re-drilling mounting holes to match your specific frame pattern . 79cc predator engine
Blog Post: The 79cc 3 HP Engine: The Perfect Heart for Your Mini Bike Project
(Ideal for the SKZ Mini Bike blog to attract DIY builders and replacement-part buyers.)
79cc predator engine swap, Baja Doodle Bug engine replacement, Coleman CT100U engine, horizontal shaft engine, mini bike engine upgrade.
There is something special about the hum of a small 4-stroke engine firing up. For mini bike enthusiasts, the 79cc 3 HP engine has become the gold standard for budget-friendly builds, reliable replacements, and backyard fun. Here is why this compact powerplant is the perfect choice for your next project at SKZ Mini Bike.
Why Choose a 79cc Engine?
If you own a classic Baja Doodle Bug or a Coleman CT100U, you know that the original engines are often discontinued or hard to find . The 79cc engine steps in as the perfect hero. It offers the same—if not slightly better—horsepower (3 HP) than many of the original 97cc engines, meaning you won’t feel a loss of power during your upgrade . 79cc predator engine
Built to Last: The Engineering Inside
What makes a $129 engine worth buying? It is the internal components .
-
Cast-Iron Cylinder: Unlike cheap aluminum bore engines, the cast-iron cylinder sleeve on this 79cc motor provides a hard, durable surface for the piston rings to ride against. This means less wear and a longer engine life .
-
OHV Efficiency: Overhead Valve (OHV) technology is usually found on larger, more expensive engines. It routes the intake and exhaust through the cylinder head, resulting in cooler operation and better fuel economy .
Critical Fitment: Will It Fit My Frame?
This is the number one question we get. The 79cc engine features a standard horizontal shaft and a universal mounting pattern. However, we want to be transparent: while it is the go-to replacement for a Doodle Bug, you may need to get out your drill.
-
Shaft Size: The 5/8″ diameter shaft is standard and accepts most mini bike clutches (typically #35 or #41 chain) easily .
-
Mounting: The base pattern is roughly 4″ x 4.9″. This fits most frames, but cheap aftermarket frames sometimes have slight variances. If the holes don’t line up perfectly, a simple re-drilling of the mounting plate is a common and easy fix .
Safety First: Low Oil Shutdown
One of the best features of modern 79cc engines is the Low Oil Shutdown sensor . Older engines would seize up if you forgot to check the oil. This engine is designed to automatically shut off before the oil level gets low enough to cause damage, saving your engine and your wallet. 79cc predator engine
Project Inspiration: What Can You Build?
-
The Mini Bike Restomod: Take that rusted frame sitting in the garage, wire brush it down, give it a fresh coat of paint, and bolt on this 79cc engine.
-
The Kid’s Go-Kart: Build a safe, low-speed go-kart for the neighborhood. 3 HP is enough power for fun but manageable for younger drivers.
-
The Utility Rig: Mount it on a small pressure washer or log splitter for off-grid power.
Ready to start your build? The 79cc 3 HP Engine is in stock and ready to ship at SKZMinibike.com.
Are you on a quest for the perfect engine for customizing your mini bike? Perhaps you are building a one-of-a-kind go kart? Well Monster Scooter Parts has the 79cc, 3 hp engine for from Predator. These mighty little Predator gasoline engines are perfect for replacing your old broken motors on those long discontinued vehicles, or for creating your own custom ride that’s sure to cause envy among the neighborhood. 79cc predator engine
Features & benefits of the Predator 79cc 3 hp gas engine:
- EPA certified
- Upgraded engineering
- Durable cast iron cylinder
- Gas-saving overhead valves
- User-friendly controls
- Easy starting
- Fuel shut off for safe transport
- Ball bearing supported horizontal 2.4″ shaft
With Monster Scooter Parts’ convenient inventory of spare and replacement parts, there is no longer any need for the home mini bike or go-kart builder to scrounge second-hand “junk engines” and other parts as we often had to do in years past. 79cc predator engine >> 79cc predator engine >> 79cc predator engine >> 79cc predator engine >> 79cc predator engine >> 79cc predator engine >> 79cc predator engine > 79cc predator engine >> 79cc predator engine
43 reviews for 79cc 3 HP Mini Bike & Go-Kart Engine
Add a review
Related products
Aaron Mitchell –
I ordered the SKZ Complete Mini Bike for my son’s birthday and it was a huge hit! The bike arrived quickly and was easy to assemble. The quality is fantastic for the price and it runs like a dream. Highly recommend SKZ Mini Bikes!
Bethany Clark –
Absolutely love my new mini bike from SKZ! It’s sturdy
Carlos Reyes –
Great experience overall. The mini bike is exactly as described and performs well. Assembly took a bit of time but nothing too difficult. SKZ Mini Bikes is a solid company. Giving 4 stars only because the seat could be a bit more padded.
Danielle Foster –
This was my first time buying a mini bike online and SKZ made it so easy. The bike arrived in perfect condition and my daughter hasn’t stopped smiling since. Excellent quality and value!
Ethan Brooks –
The SKZ mini bike is an absolute blast! It’s powerful enough for adults but safe for kids too. The build quality is impressive and it handles great. I’m already planning to buy another one for my other child.
Faith Johnson –
Really happy with my purchase. The mini bike is well-made and my son loves it. SKZ Mini Bikes delivered on time and the bike was well-packaged. Giving 4 stars because the instructions could be clearer
Gabriel Torres –
I’ve been looking for a reliable mini bike for months and SKZ exceeded my expectations. The bike is sturdy
Hannah Lee –
Absolutely fantastic mini bike! My son is 8 years old and it’s the perfect size for him. It was easy to assemble and runs great. SKZ Mini Bikes is now my go-to for outdoor toys. Five stars!
Ian Parker –
Very satisfied with this purchase. The mini bike is durable and fun to ride. SKZ Mini Bikes provided great customer service when I called about the delivery. Giving 4 stars because the paint had a tiny scratch
Jasmine Williams –
This mini bike is incredible! My two kids fight over who gets to ride it next. The quality is top-notch and it arrived sooner than expected. SKZ Mini Bikes is a fantastic company!
Kevin Martinez –
I bought this for my nephew and he absolutely loves it. The bike is well-constructed
Lauren Adams –
Great mini bike overall. It’s well-built and performs exactly as described. My daughter enjoys riding it around the yard. Giving 4 stars because I wish the throttle was slightly more responsive
Marcus Bell –
Couldn’t be happier with my SKZ mini bike! It’s sturdy
Natalie Young –
This is the best purchase I’ve made for my kids this year. The mini bike is excellent quality and provides endless entertainment. SKZ Mini Bikes made the buying process smooth and hassle-free. Highly recommend!
Oliver Davis –
Really good mini bike for the price. It’s durable and my son has been riding it every day since we got it. SKZ Mini Bikes delivered promptly. Giving 4 stars because the assembly instructions could be a bit more detailed.
Paige Wilson –
Absolutely love this mini bike! It’s the perfect size for my 9-year-old and he’s already mastered riding it. The quality is fantastic and it arrived in perfect condition. SKZ Mini Bikes is awesome!
Quinn Roberts –
I’m so impressed with the quality of this mini bike. It’s solid
Rachel Garcia –
Very happy with my purchase. The mini bike is well-built and fun to ride. SKZ Mini Bikes provided excellent customer service. Giving 4 stars because the kickstand feels a bit flimsy
Samuel Kim –
This mini bike is a game-changer for our family weekends. My son and I both enjoy riding it. The build quality is outstanding and it runs like a charm. SKZ Mini Bikes is a fantastic company!
Taylor Brown –
I was nervous about buying online but SKZ Mini Bikes made it so easy. The bike arrived quickly
Ulysses Martinez –
Great mini bike for the price. It’s sturdy and my kids love it. SKZ Mini Bikes delivered as promised. Giving 4 stars because the seat could be a bit more comfortable for longer rides.
Vanessa Thompson –
Absolutely incredible mini bike! My son hasn’t stopped riding it since we got it. The quality is superb and it was very easy to set up. SKZ Mini Bikes is a reliable and trustworthy dealer.
William Chen –
This mini bike exceeded all my expectations. It’s powerful
Xavier Lopez –
Very satisfied with my purchase. The mini bike is well-made and performs great. SKZ Mini Bikes provided good service throughout. Giving 4 stars because the throttle cable needed a minor adjustment
Yvonne Harris –
I bought this for my grandson and he absolutely loves it. The bike is well-built
Zachary Turner –
Couldn’t be happier with this mini bike. It’s sturdy
Alice Martin –
Really good mini bike for the price. It’s durable and my daughter enjoys riding it. SKZ Mini Bikes delivered quickly. Giving 4 stars because the handlebars could be slightly higher for better comfort.
Benjamin Scott –
This is the best mini bike I’ve ever bought. The quality is outstanding and it runs perfectly. My son is thrilled with it. SKZ Mini Bikes is a top-tier dealer. Five stars!
Charlotte King –
Absolutely love this mini bike! It’s well-built
Dylan Wright –
Very happy with my purchase. The mini bike is solid and performs well. SKZ Mini Bikes provided great customer service. Giving 4 stars because the brakes could be a bit more responsive
Emma Green –
This mini bike is fantastic! My son is 7 years old and it’s the perfect size for him. The quality is excellent and it arrived in perfect condition. SKZ Mini Bikes is a great company!
Frederick Adams –
I’m so impressed with the SKZ mini bike. It’s durable
Grace Phillips –
Great mini bike overall. It’s well-built and my daughter loves it. SKZ Mini Bikes delivered as expected. Giving 4 stars because the paint finish could be a bit more durable.
Henry Campbell –
This is an amazing mini bike! My son is obsessed with it and rides it every day. The quality is top-notch and it was easy to assemble. SKZ Mini Bikes is a fantastic dealer. Five stars!
Isabella Evans –
Absolutely love this mini bike! It’s the perfect gift for my nephew. The bike is sturdy
Jack Edwards –
Very satisfied with my purchase. The mini bike is well-built and performs great. SKZ Mini Bikes provided good service. Giving 4 stars because the seat could be more padded for a smoother ride.
Katherine Collins –
This mini bike is incredible! My kids have so much fun on it. The quality is excellent and it arrived quickly. SKZ Mini Bikes is a reliable company. Highly recommend!
Leo Stewart –
Couldn’t be happier with my SKZ mini bike. It’s well-built
Mia Rodriguez –
Great mini bike for the price. My daughter loves it and it’s held up well. SKZ Mini Bikes delivered promptly. Giving 4 stars because the mirrors could be positioned better for improved visibility.
Noah Mitchell –
This is the best mini bike I’ve ever bought for my kids! It’s sturdy
Olivia Perez –
Absolutely fantastic mini bike! My son loves it and it’s perfect for his age. SKZ Mini Bikes is a fantastic company. Five stars!
Paul Flores –
Really happy with my purchase. The mini bike is well-made and performs great. SKZ Mini Bikes delivered as promised. Giving 4 stars because the assembly instructions could be more detailed.
Ruby Turner –
This mini bike is incredible! My kids have so much fun on it. The quality is excellent and it arrived quickly. SKZ Mini Bikes is a great company. Highly recommend!