New Zeda 100 Max Complete 50mm Bore 2 Stroke Bicycle Engine Kit - 80cc/100cc - Firestorm Edition

The Zeda 100 Max is a brand new addition to our Zeda 100 lineup. This newest model still has the power and performance you’ve come to know with the Zeda 100, but now available in a 2 piece cylinder and head design. The Max also features a thicker more durable cylinder and larger fins on the head for improved cooling. This cylinder also comes with open transfer ports that help optimize performance. With a separate cylinder and head, you have more potential for upgrades.

For the ultimate upgrade check out the CNC Pro Max Cylinder head with dual spark plugs.

• 50mm bore two piece cylinder/head (increased weight capacity, lower operating temps, easier starting, sustained power output across varied rpm range)
• High performance Speed carb
• Silver anti-corrosion coating
• High performance CDI with Yamaha components
• Improved magneto
• High end allen bolts
• Improved gas cap

This bike engine kit includes all of the necessary items to turn your pedal bicycle into a motorized monster! Supply is very limited, so get yours while they last.

• Firestorm Zeda100 3+ HP 2 stroke engine engine with two piece cylinder/head
• 50mm Bore, 40mm Stroke - Actual U.S. engine displacement 78.6cc
• Pearl coating protects against corrosion
• High performance Speed carb
• Angled LD Z8C spark plug
• Improved magneto
• Stainless steel allen bolts
• Better balanced crank
• Upgraded bearings / 60% thicker crank case around bearings
• Stuffed crank case
• Large intake port (40mm bolt hole width)
• Round exhaust port - 21 mm diameter
• 40mm crank stroke (more powerful, efficient, and reliable)
• Type B piston (high wrist pin)
• Long rod (89mm)
• Larger 8mm x 1.25 engine mount studs
• Dimensions: 9" x 9" x 5"

• High performance CDI with Yamaha components
• Black teardrop gas tank (2L) w/ new fuel cap, fuel valve, fuel filter, and fuel line
• 415 Heavy duty chain with chain guard
• Ball bearing chain tensioner
• New chrome muffler (longer angle for pedal clearance)
• Throttle assembly w/gooseneck style throttle cable
• Twist throttle and cable with matching grip and kill switch
• New quick release clutch handle
• Large front mount for bicycles that have large down tubes
• Available with 36, 44, or 48 tooth rear sprocket & wheel adapter
• Spark plug socket tool and gear removal tool

Fuel/Oil Ratio

• New Engine (<310 miles): 20:1
• After Break In: 30:1

Installation similar to: FireStorm Zeda 80 Installation Instructions | Cylinder Assembly Instructions | Cylinder Assembly Video
Troubleshooting: 2-Stroke Troubleshooting Guide