Hey Guys,
The 5:1 Reverse Gear Box Fits All Engines With A 76mm Clutch Shoes, Both 2 And 3 Shoe. The Drum Is 78mm. I Bought 5 Of The Thumb Throttle And Dual Brake Lever Units A Couple Yrs Ago. Thinking I Have A Couple Of The Thumb Throttles With Out The Brake Lever Also. They Are Smooooth, Quaility Units.
The Wires Are For A Brake Lite. I Much Prefer The Thumb Throttle, Very Smooth And Comfortable, Especially For My Shifter Bike. The Twist Throttle`s Are Bad For First Time Operators. They Panic And Freeze On The Throttle On Bigger Motorcycles When They Lose Control. Much Easier To Release The Thumb Throttle.
The Dual Brake Lever Is Quite Safe, They Come On Atv`s. Have Thought Of Running A Rim Brake With A Left Hand Lever For A Backup. Dual Lever Controls Frt Disc And Rear Brake.
They Have An Idle Adjustment On The Cable And A Full Throttle Stop, That Way You Are Not Breaking Cables Or Carb Parts. The Thumb Throttles Were On Ebay For $9.95 W/free Sh. Thumb Throttle And Dual Brake Units Were $12. Free Sh. Bought Mine 5 Units Over 2 Yrs Ago And Paid Much More.
I Have Several Of The "cag" Horizontal Cylinder Engines. Have One On A Cvt Rack Mount With The 52cc Big Bore Kit, It Even Sounds Meaner!! Some Of Them Come With A Aluminum Pull Starter Cover And Cog. Or You Can Buy The Starter Separate.
The Little Tranny Looking Cover On The Side Is A Clutch Drum And Bellhousing. It Has The Little #25 Sprocket The Size Of A Dime. Took One To The Machine Shop And Had The Sprocket Cut Off And Bored And Tapped 5/16" Nf Thread`s Into The Clutch Drum Shaft. Then Used A Hardened 1 1/4" Allen Set Screw To Screw On The Motor Cog For An Eagle Belt Drive.
May Finish That Build Next Winter. I Have Pics If Anyone Is Interested. If You Think Of Going That Route, Use The Bell Housing With The Outer Cover With Outboard Bearing. The End Of The Allen Screw Would Need To Be Machined To Fit The Little Bearing, But Worth The Effort.
If You Don`t Like Caps, Don`t Read This More Than Once!! Lol
Enjoy Your Builds. Ron