GoMax Industries

New BT100 3 Ring Piston Complete 100cc Motorized Bicycle Engine Kit

$179.00 USD

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Rear Sprocket 44 Tooth 36 Tooth

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Brand new BT100 100cc complete 2-stroke engine kit. This engine kit features a single piece cylinder with open transfer ports, silver metallic enamel finish, and fantastic performance. Please take the time to read the break in procedures below!

BT Super Sport Complete 100cc Motorized Bicycle Engine Kit Includes:

100cc BT engine (78.6cc actual)
3 HP+ - Average Power
Bore and Stroke: 50mm x 40mm
Three Ring Piston with low wrist pin and short connecting rod
Open Transfer Port Single piece cylinder
Large 45mm Exhaust Port
Standard NT racing carburetor
Chrome muffler - with clamps and copper gasket
Standard CDI and spark plug
2 Liter Black Teardrop Fuel tank – with mounting hardware, fuel cap, fuel valve, inline fuel filter, and fuel line
Twist throttle with kill switch - with matching left grip and gooseneck style throttle cable
Quick release push button clutch lever - with clutch cable
44 tooth rear drive sprocket – with standard rear wheel installation kit is standard. 36 tooth is available upon request
415 Heavy duty chain, chain guard, and ball bearing chain tensioner
Large front mount for bicycles that have large down tubes

Recommended Break In Procedures

Add only professional synthetic 2 stroke oil
The ratio of mixing engine oil and gas fuel must be correct
0-50 miles: 8oz per gallon
50-100 miles: 6oz per gallon
≥100 Miles: 4oz per gallon

You have to check the color of the electrode of spark plug to make sure the mixture ratio of engine oil and gas fuel are proper. If the electrode has black color, it means there is too much engine oil and you should decrease its mixture ratio. If the electrode has off-white color, it means the engine oil is not sufficient and you should increase its mixture ratio