Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
This item is eligible for return within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Features
Description
Package Includes: 1 x Quality 49cc 4 Stroke Engine1 x Gas Tank,Plastic Gasoline Fuel Line,Fuel Value1 x Adjustable Chain Idler1 x 44 Tooth 9 Hole Sprocket1 x Chain Guard1 x Extra Wide Crank/Sprocket1 x Fiber Sprocket Mounting Rings,9 Sprocket Bolts,3 Metal Retaining Segments1 x Engine Mounting plate with universal mounting brackets1 x Spark Plug Wrench1 x Misc.Mounting Bolts with Nuts1 x Heavy Duty 415 Chain1 x Twist Grip Throttle with Built-in Kill Switch1 x Adjustable Throttle CableFully assembled and ready to install 49cc Bicycle Engine Kit Specifications: Engine Mode: 142F Engine Type: Air-cooled, 4-Stroke, OHV, single cylinder Bore x Stroke: 41.8 x 36 mm (1.65 x 1.42 in) Displacement: 49 cm3 (2.99 cu in) Compression Ratio: 8.0 : 1 Net Horse Power Output: 1.6kW (2.1HP) at 7,000 rpm Net Torque: 2.7 Nm (2.0 lbs ft) at 4,500 rpm PTO Shaft Rotation: Counterclockwise (from PTO shaft side) Ignition System: Transistorized magneto ignition Starting System: Recoil Starter Carburetor: Float Type Lubrication System: Forced Splash Governor System: Centrifugal Mechanical Air Cleaner: Semi-dry Type Oil Capacity: 0.25l (0.26 US qt, 0.22 Imp qt) Fuel Tank Capacity (liter): 0.77l (0.81 US qt) Tips for start the motor 1. Unleaded petrol / oil mixture is necessary. 2. Use only synthetic 2 stroke fuel to insure proper engine lubrication. 3. To start, move the choke lever to "on" position, hold in clutch, pedal the bike fast to get some speed, and then release the clutch gradually. 4. To stop, slow speed, disengage clutch and apply either original brake (if you didn't remove the original left handle brake). 5. To stop the engine, choke the carburetor completely with the lever on the carburetor. Alternatively, slow speed, hold in clutch and press the kill switch on twist-grip throttle. Read more Ignition Safely & Fuel-Efficient The ignition mode of the bike gasoline engine is capacitor discharge. With the electronic igniter, you can use it safely. Powerful Engine Heavy duty metal engine body for added durability. Single Cylinder, Air-Cooling, Gasoline Engine. Engine kit is perfect to upgrade the regular bike to a motorized bike.The top speed of between 27-32MPH / or 43- 51KPH. Complete Engine Kit Comes with all needed hardwares for easy installation to convert your bike to a motorsized bicycle. Fits for most type 26" bikes with V-frame, such as mountain bikes, road bikes,cruisers, choppers. Read more Installation Manual: 1. When installing the chain, chain wheel and sprocket should be kept in the same straight line.2. After Carburetor and Throttle Cable have been installed，Turn the Throttle to check whether carburetor is working correctly.3. Installing Clutch cable: hold the clutch handle then spin the rear wheel of bicycle and check if it spins normally. Release the clutch handle, the wheel should stop spinning.4. Adjusting the Chain tightness: Tighten up the chain, apply force to press the chain downward, the sagging down height within 0.5~1cm is considered ideal.5. Spark plug, muffler, carburetor installation: Tighten all bolts6. Check all wires are connected properly. Note: All the needed mounting brackets, gaskets, and hardwarePlease also keep in mind that the motor will use a mix of gasoline and oil. The oil is used as a lubricant. Without it, the performance and longevity of the motor will be reduced.Be assured the mixing ratio of fuel and engine oil is 16:1 for new sets, 20:1(18:1 is much better in summer because of the hot weather) after running 500km.The air cylinder might take some time to adjust to the load. Thus to avoid possible complications for the motor, please limit the riding time to a maximum of 1 hour for the first few rides.If you need Instruction or video, please contact our.
Brand Name: SUNROAD
Manufacturer: SUNROAD
Part Number: SD-49cc
Included Components: Tool Kit
Date First Available: March 4, 2022
