frame design questions regarding tanks, motor

Hey Moto, When I first hit this site and saw your bike, I asked where you got your tank. Further investigation showed me it came 0ff a Jesse James and that you're a pretty fair fabricator. As you know, I'm doing a JJ now, but it had no tank on it when I got it. The stock tank fits it perfectly and wish I had one. But, I just don't have the welding equipment even if I did.
I think you have one of the best looking OCC Choppers around, in large part due to the tank. I would just have to change the seat to a larger, more comfortable one,(Couse I'm old). I might also find a fork set with the brake setup on it. Put on a dual pull and yer done. I had one setup like that and the braking was incredible. Still, Great job on the bike.
Big Red.

well thanks for the compliments.
I never said that my seat is comfortable...but it looks good.
sometimes looks win over comfort...lol.

yeah i sold my j.j. bike (no engine on it) but i kind of wish i would have kept it.
I wanted to motorize it this winter, but someone made me an offer on it that i couldn't refuse.
If i had a spare j.j. tank, i'd sell it to you, but i don't have one right now.
I know that you've probably already seen my j.j. bike, but here it is for old times sake.
orange2.jpg

orange6.jpg
 
very nice so far...

motopsycho, very nice so far. (oops, I guess that's the JJ/WCC 'sold' bike...)


Yes I know the tank takes a fair amount of work to actually use it.
What style of drive do you guys use on the OCC and WCC types out there? The one in the garage is friction drive via a jackshaft/roller, with the mount welded to the frame. Not very fuel efficient, but no chainline troubles.
When looking at the bike above the LHS, it appears there would be a fair amount of work to drive the rear wheel by chain (a re-dished wheel might help), unless I turn the motor around and put a drive sprocket on the LHS and drive it via the jackshaft (which would be driven from the RHS). Seems kind of tight to get a good chain angle if driving from the LHS.

Any comments?
 
Last edited:
Drive

motopsycho, very nice so far. (oops, I guess that's the JJ/WCC 'sold' bike...)


Yes I know the tank takes a fair amount of work to actually use it.
What style of drive do you guys use on the OCC and WCC types out there? The one in the garage is friction drive via a jackshaft/roller, with the mount welded to the frame. Not very fuel efficient, but no chainline troubles.
When looking at the bike above the LHS, it appears there would be a fair amount of work to drive the rear wheel by chain (a re-dished wheel might help), unless I turn the motor around and put a drive sprocket on the LHS and drive it via the jackshaft (which would be driven from the RHS). Seems kind of tight to get a good chain angle if driving from the LHS.

Any comments?

I do my OCC's like this. I'm pretty old school and like my bikes to look as much like motorcycles as possible. The engine sitting on top of the tire just don't look right to me.
OK, I'm still a dummie. I just noticed I'm using this pic for my Avitar. You can see better pics in my album.
 

Attachments

  • GetAttachment 1.jpg
    GetAttachment 1.jpg
    10.7 KB · Views: 192
Last edited:
motopsycho, very nice so far. (oops, I guess that's the JJ/WCC 'sold' bike...)


Yes I know the tank takes a fair amount of work to actually use it.
What style of drive do you guys use on the OCC and WCC types out there? The one in the garage is friction drive via a jackshaft/roller, with the mount welded to the frame. Not very fuel efficient, but no chainline troubles.
When looking at the bike above the LHS, it appears there would be a fair amount of work to drive the rear wheel by chain (a re-dished wheel might help), unless I turn the motor around and put a drive sprocket on the LHS and drive it via the jackshaft (which would be driven from the RHS). Seems kind of tight to get a good chain angle if driving from the LHS.

Any comments?

I'm not really following you....
if you turned the motor around (a h.t. motor anyway) it would spin the rear wheel backwards.
I just use a regular sprocket (41 tooth) on the rear wheel, and the stock chain drive (single speed) on my o.c.c.
 
no transmission...

I want to drive the rear wheel from the motor. This particular motor spins clockwise. If I attach the output sprocket from the motor to a rear sprocket mounted on the LHS of the wheel, then I get brakes, not drive (as the motor is currently mounted). If I drive a jackshaft from the other side, and drive the rear wheel (with sprocket on LHS) from a sprocket mounted on the LHS of the jackshaft, then I will get forward motion.

I am assuming that many are using a transmission of a sort, which may output in the correct direction. One of the biggest issues is to get a suitable chainline to drive the rear wheel using a sprocket on the LHS of the wheel.

hope that clarifies the problem...
 
Last edited:
I want to drive the rear wheel from the motor. This particular motor spins clockwise. If I attach the output sprocket from the motor to a rear sprocket mounted on the LHS of the wheel, then I get brakes, not drive (as the motor is currently mounted). If I drive a jackshaft from the other side, and drive the rear wheel (with sprocket on LHS) from a sprocket mounted on the LHS of the jackshaft, then I will get forward motion.

I am assuming that many are using a transmission of a sort, which may output in the correct direction. One of the biggest issues is to get a suitable chainline to drive the rear wheel using a sprocket on the LHS of the wheel.

hope that clarifies the problem...

If you have a happy time (china) 2 stroke, they all spin clockwise.
You can not run a standard bicycle wheel sprocket on the left side because it will not spin forward (forward would be brakes if it has a coaster brake, or freewheel if it has a freewheel hub.)
You have to get a secondary sprocket for the wheel that gets mounted on the left side. This sprocket bolts directly to the wheel.
You keep the original sprocket on the right side of the wheel for peddling, and you add a secondary sprocket to the left side of the wheel for the engine. The secondary sprocket should be in the 36-44 tooth range depending on your wheel size and if you are looking for top speed or low end power. This set up will allow the bike to be one speed only.

If you want to run a shift kit, then you would have to run a jackshaft and a freewheel crank sprocket.
The jackshaft diverts the chain over to the right side and it drives the pedal crank sprocket. The pedal crank sprocket has a chain that runs to the rear sprocket on the right side of the wheel (a standard bike sprocket, with either 3, 5 or 7 speeds.)
The crank sprocket freewheels so the pedals don't move while the enigine is powering the bike. When you want to pedal, you just pedal as normal and the freewheel locks up and supplies pedal power to the rear wheel.
This set up will allow you to add shifting capabilities for more power/speed.
 
Last edited:
Jesse James

Hey Moto, Here's the bike that was giving me so much trouble. It's got a side draft(sp.) carb. OCC drag bars and OCC rear fender. I built the engine mount myself because I wanted the engine to sit high in the frame. That forced me to include a sprocket roller, not for tension but only to keep the chain off the frame. What do ya think?
 

Attachments

  • 004.jpg
    004.jpg
    125.7 KB · Views: 223
  • 005.jpg
    005.jpg
    99.7 KB · Views: 222
  • 006.jpg
    006.jpg
    127.5 KB · Views: 246
Hey Moto, Here's the bike that was giving me so much trouble. It's got a side draft(sp.) carb. OCC drag bars and OCC rear fender. I built the engine mount myself because I wanted the engine to sit high in the frame. That forced me to include a sprocket roller, not for tension but only to keep the chain off the frame. What do ya think?

I like it, i like it!!
Nice work!
 
Jesse James

I like it, i like it!!
Nice work!
Thank's Bro, I think I like it just a little better than the OCC bikes. The metal seems thicker in the frame. I guess Huffy just makes a heavier bike. The next Jesse James frame you get you should go for it. With your ability I think it would be one BAD A bike.
Big Red.
 
Back
Top