Above is a pic of the stock scoot engine and sitting next to it is its replacement, a Honda GY6 four stroke clone. I wont bore you with the details or history, and it may not look like much at first glance, but this is one crazy little engine. Known worldwide for its durability, extreme efficiency and due in large part to its huge ball bearing crankshaft bearings, this engine welcomes major hi performance upgrades and is raced heavily in Europe and Asia (scooters).
Stock SnoScoot engine is 80cc 2-stroke and has about 4.5 hp stock at 6200 rpm.
New engine in stock form is a 150cc 4-stroke with 8.75 hp stock at 7400 rpm.
Mods being done (pic is stock minus cooling shrouds):
188cc big bore kit with nicasil plated piston and lightweight wrist pin
Hi compression, large valve head
Hi-lift camshaft
Stroker race crank and lightweight connecting rod
30mm carb with hi flow intake
Programmable CDI with no rev limiter
11-pole stator with race magneto
Hi performance ignition coil
Current stabilizer to aid ignition with lightning fast, stratospheric rpms
Custom, free-flowing, rear exit exhaust system
Hi performance tunable variator (front clutch) with sliding weights
Hi performance, tunable clutch(rear clutch)
Kevlar drive belt
Custom final gearing
And a few more undisclosed treats
Result: approx 20hp with revs to over 13,000 rpms.
While this is no banshee engine, on the street as crazy as it sounds, this same engine installed in a scooter easily hangs with or beats some very fast cars and motorcycles in a dead drag race.
Should be interesting to say the least!
And much to come….
