YERF DOG CUV ROVER SCOUT GY6 ENGINE--GUARANTEED FIT
GUARANTEED FIT FOR YOUR YERF DOG CUV ROVER SCOUT WITH MINOR MODIFICATIONS: New GY6 150cc Internal Reverse replacement Engine. This is a replacement engine for your vehicle. The exact engine no longer exist since Yerf Dog is out of business but this engine is very close with minor minor modifications. (Sprocket and nut, and/or CUV rear engine mounting plate)
Most of the CUV's were manufactured with drive shafts that look like the below and this is what the one that we ship you will look like. If yours is different give us a call.
YOU HAVE PERFORMANCE OPTIONS WITH THIS ENGINE--SEE BELOW
Option 1: Includes the standard engine.
Option 2: Includes the standard 150cc engine and a new American made high performance Uni-Filter air filter ensures clean air to your engine. See why a NEW Uni-Filter is MANDATORY for ALL new engines. Don't get an engine without one. Your new engine warranty applies only if a new uni-filter is purchased with this engine.
Option 3: - 175cc Engine, performance transmission plus all items from Options 1 and 2:
High Performance Transmission for Better Power Transfer to the Wheels:
This option includes High Performance Transmission: 1500 PRM Spring and 10 gram rollers, performance variator and high stall clutch and thus more torque and more power due to more efficient power transfer. See price options at the top of the page.
Four sets of roller weights for you to optimize top end speed and low end torque of your vehicle (9g, 10g, 12g and 14 grams). One set is included inside of your engine.
We convert your new 150cc engine into a 175cc racing engine. See price options at the top of the page.:
MORE CC MEANS MORE POWER
Read our article on how displacement relates to more power.
How big bore kits & strokers work
TAKE A LOOK AT THIS COMPARISON
Stock GY6 Hill Climb
BDX 184cc GY6 Hill Climb
We disassemble your engine, bore the case to make it larger so that we can install a 62mm big bore piston and cylinder. Then we re-assemble and test your engine.
We can rebuild your engine. Call us!
Be sure to read our article on how displacement affects your power.
[*] 60 Day Parts Warranty
Please read the Warranty details in warranty section
Engine is shipped DRY with no oil.
Be sure to add 750ml of 10w40 to the crankcase and 120ml of 80w90 to the gearcase before starting.
- Adjust valves after break-in period.
- Change oil after break-in period.
- Engine is shipped DRY with no oil. Be sure to add 750ml of 10w40 to the crankcase and 120ml of 80w90 to the gearcase before starting.
- Do not use synthetic oil in GY6 engines
- Install a uni-filter with new engine for longer life and better performance. If you don't you are guaranteed to be putting dirt into your clean NEW engine. Stock air filters do not effective filter air and are the number one engine killer for GY6 engines.
Guaranteed Fit - No returns on engines.
Before ordering please call and speak to our technician if you have any questions regarding fitment. Please do not return your engine--call us if you ordered the wrong engine without consulting our technician. In the very rare event that there is a warranty issue please see warranty section.
About Oil Coolers:
Our engines Do NOT come with provisions for oil coolers. We've always advised strongly against the use of oil coolers on the GY6. We've seen too many instances where a cooler line bolt vibrated loose, dumping all of the engine oil and causing a massive failure. The perceived benefit isn't worth the risk. Oil coolers on the GY6 solve a problem that doesn't exist. Follow regular maintenance intervals, invest in a UNI Air filter (and keep it oiled), and your new engine will last many years even decades--we've seen it many times. Coolers provide a false sense of longevity benefits, and the only proven result is the added risk of unexpected massive failure.