Replacing Hoot Gearbox

[wayne z]

This gearbox will fit your motor.

only $34.95 with shipping already included !!!

Gas Scooter Mini Moto Bike Parts Transmission Moped: eBay Motors (item 180360796487 end time Sep-16-10 01:06:19 PDT)

That is the exact samr box that comes with the BGF kit cet the BGF one has a longer output shaft to keep the engine centered between the pedals.

It has a single row #25 chain. I don;t expect it to last long woth chainlube or grease, so I modified mine to run woth oil bath.

The box that DAX sells is built with stronger casing and uses double row chain.
I thinjk the g-4 is better than the others, for longer reliable service. That,s the box I'll get if my chainbox wears out too soon

 

[MotorBicycleRacing]

The eBay link is the identical unit that Dax sells
It has a double row chain
Yes, the quality is not that great

That is the exact samr box that comes with the BGF kit cet the BGF one has a longer output shaft to keep the engine centered between the pedals.

It has a single row #25 chain. I don;t expect it to last long woth chainlube or grease, so I modified mine to run woth oil bath.

The box that DAX sells is built with stronger casing and uses double row chain.
I thinjk the g-4 is better than the others, for longer reliable service. That,s the box I'll get if my chainbox wears out too soon

 

[Smoothe]

This looks like the same box that Dax has, EXCEPT:

Duane has a ten-toothed sprocket that fits his box, Duane has a one-year warranty on his box, and, I can't call this ebay seller up on a Saturday afternoon (no speekie Chinese, I'm not saying that the seller is, but there's a darn-good chance) and get advice from someone who has 30 years in the business.

EZM has a new 2-speed gearbox in the works, and it's a double-chain box.

I figure I might get away with Duane's box for a few months while saving for an EZM gearbox. I've emailed both Bill and Duane to get advice. Bill said I would have to get at least a 56T sprocket for an EZM gearbox to work for me. Duane said I would get 35-40 MPH with a 40T sprocket (That came today, good job Piston). My fat whizzer tank came today too, it's very cool.

 

[wayne z]

The eBay link is the identical unit that Dax sells
It has a double row chain
Yes, the quality is not that great

You are right,I didn't notice the extra screw in the cover that the other box doesn't have

 

[wayne z]

I wouldn't try the 40 tooth . Mine came with a 48 tooth and it is WAY overgeard at around 14.5-1.

I can hold 42 mph at 1/2 throttle , full throttle doesn't increase mph from there. The lil motor just doesnt have enough power to rev any higher at that ratio.

 

[Smoothe]

Pirate Cycles has a 56T sprocket that'll work with the Manic Mechanic hub adapter, that's what I'll run with. The adapter and sprocket that came yesterday are masterpieces. Jim does excellent work.

 

[azbill]

Jim and Justin (Pirate) are both very good to deal with in my experience
I knew you would like it

 

[Smoothe]

It's a work of art, Bill, can't wait to powdercoat it!

 

[wayne z]

Pirate Cycles has a 56T sprocket that'll work with the Manic Mechanic hub adapter, that's what I'll run with. The adapter and sprocket that came yesterday are masterpieces. Jim does excellent work.

I changed my 48 to the 56 yesterday. Top speed is just as I expected, about the same at around 40mph (Hall windspeed indicator)
It gats that speed a lot faster, and can climb moderate hills easily now.
Still feels a little tall geared so I use a few pedal strokes from a level dead stop.

Did 2nd oil change,2hrs run time(hard). Still a lotta aluminum in the oil.

Chainbox oil didn't show much metal but smelled and looked burnt.

Gotta check, oil prolly getting into clutch compartment thru chainbox bearing seals.
Might try a drain hole in the clutch compartment and better bearing with better seals, Prolly not seals but just sheilded bearings in there.