Can the Hua Sheng 49cc motor be mounted on a tilted plane?

[Edge]

horrid kits, noisy, and fail easy. also way undergeared. get a smaller rear sprocket. do some counting and math and work out what ratio its running. you want around 12:1 for a 26" wheel. it will still pull hard up most hills, but wont throw a rod when its wound out...


angles fine, as long as the carbs slightly up. splash feed crankcase, so maybe add a bit more oil. not much!

too steep and the carb is the issue, not the lubrication. that oil will get whisked around no matter what.

My GT Jetstream is so comfortable to ride, too bad it may be too tight a fit. I have an old Fuji road bike in the garage. I have to change the handlebars:

 

[TomTom]

tilted motor mount

I absolutely would not mount the motor tilted like that. You are going destroy the internal moving parts before that transmission goes.. (more than likely). Get another bike, mount the motor level, save your money so that when the transmission blows you can purchase a Qmatic.

 

[TomTom]

I would never mount my motor like that. Your are going to destroy the internal parts of the motor even before the transmission gives it up. Get another bike, save your money, so that when the trans goes out you can buy a Qmatic tranny.

 

[Edge]

I would never mount my motor like that. Your are going to destroy the internal parts of the motor even before the transmission gives it up. Get another bike, save your money, so that when the trans goes out you can buy a Qmatic tranny.

I did get another bike. Don't you see the motor mounted level on the Fuji 10-speed?

 

[InfoCentral]

I have to change the handlebars

So, do you have a new pic with the handlebars changed?

BTW, I have been thinking of using the Hua Sheng 4 stroke motor for my first build. I hate having to mix the oil and gas. I assume with this being a 4 stroke engine you don't have to do that?

 

[HeadSmess]

4 strokes, straight petrol. only stihl makes a four stroke that uses premix fuel. as far as im aware.

4 strokes are very nice but are always an awkward fit, as this thread has suggested.

any brushcutter or stationary engine design is invariably awkward to fit. i myself refuse to use wide offset cranks, so i stick with the HT 2 strokes. its a personal thing. if you get the chance to try a few different versions out, do so!

most fourstroke kits are overgeared and need less reduction...smaller rear sprocket.



with the fuji roadbike for a frame...keep a close eye on the seat stays where they join the seat tube!

if they but up hard like most MTBs, its not such a concern. if theyre bevelled off and only really attached through one tiny little section...BRACE THE JOIN.

you DO NOT WANT seat stays to let go at 50km/h...

in my experience thats the area that fails first with an engine attached.

 

[TomTom]

Looks really good! Man look at all that room!
Good luck with your build... and happy riding.... Look into the Qmatic if you have problems with the tranny.

more power to you!

 

[InfoCentral]

I have read where someone recommended just buying an engine for Harbor Freight and bolt that on? I know they are cheep enough but will the drive kits fit these models?

 

[Racie35]

I would never mount my motor like that. Your are going to destroy the internal parts of the motor even before the transmission gives it up. Get another bike, save your money, so that when the trans goes out you can buy a Qmatic tranny.

I'm curious what proof you have of that goofy statement seeings how all 4 strokes can be tipped if oiled properly....remember these are splash oiled and only need a mist...me? I know from experience...you're just guessing and pushing a sub par dinosaur design. "Q" what?

 

[Edge]

So, do you have a new pic with the handlebars changed?

BTW, I have been thinking of using the Hua Sheng 4 stroke motor for my first build. I hate having to mix the oil and gas. I assume with this being a 4 stroke engine you don't have to do that?

With the new cruiser bars: