Now back in stock!
 
New at California Motorbikes!
 
**Engine Specifications:**
- **Displacement:** 85cc with a 52mm bore and 40mm stroke
- **Cylinder & Head:** One-piece design for improved power output, lower operating temperatures, and increased rider weight capacity
- **Carburetor:** High-performance Speed carburetor for enhanced fuel delivery
- **Reed Valve:** Controls air-fuel mixture for optimized performance
- **Cylinder Lining:** Ceramic lining for durability, reduced friction, and lower operating temperatures
- **Exhaust:** New ultra-quiet exhaust pipe with an oversized exhaust port
- **Ignition System:** High-performance CDI using Yamaha components, paired with a performance magneto
- **Fasteners:** Equipped with high-end stainless steel Allen bolts for added durability
- **Additional Features:** Includes an improved gas cap
**Complete Engine Kit Includes:**
- **Engine:** 85cc 2-stroke engine with integrated cylinder and head
- **Reed Valve Intake:** Enhances air intake efficiency
- **Bearings:** Upgraded needle bearing for piston wrist pin and thicker crankcase with reinforced bearings
- **Crankshaft:** Balanced crank with a stuffed crankcase, featuring a 40mm crank stroke for better power, efficiency, and reliability
- **Piston:** Double window piston paired with a long 89mm rod
- **Ports:** Large intake port with a 40mm bolt hole width and an oversized round exhaust port (28mm diameter, 60mm stud spacing)
- **Mounting Studs:** Engine comes with larger 8mm x 1.25 engine mount studs
- **Dimensions:** Engine measures approximately 9" x 9" x 5"
**Mounting Kit & Accessories:**
- **Ignition System:** High-performance CDI with Yamaha components
- **Fuel Tank:** 2L black tear-drop gas tank, complete with a new fuel cap, fuel valve, fuel filter, and fuel line
- **Chain:** Heavy-duty 415 chain with an included chain guard
- **Chain Tensioner:** Ball bearing chain tensioner for smooth operation
- **Muffler:** Ultra-quiet stainless steel muffler with sound insulation cotton inside
- **Throttle Assembly:** Includes a gooseneck-style throttle cable, twist throttle, matching grip, and kill switch
- **Clutch Handle:** Quick-release clutch handle for easy operation
- **Mounting Options:** Large front mount to accommodate bicycles with large down tubes
- **Sprocket Options:** Available with 36, 44, or 48 tooth rear sprocket
- **Tools Included:** Spark plug socket tool and gear removal tool
**Fuel/Oil Ratio:**
- **Break-In Period (First 310 miles):** 20:1
- **Post Break-In:** 25:1