My first build: 1912 Indian

[fasteddy]

The build is sweet and the tank is something that I've wanted to try for a long time even if I never had a bike for it.
My thoughts were if I tried to build one I would split exhaust tubing in half and weld a filler piece into the center so I didn't have to roll the sides.

Steve.

 

[Bugthunder]

Thanks for the tips guys! I have some extra sheet so if my method doesn't work I now have an option

 

[thegnu]

no problem bug , i hate to see a guy work harder than he has to .

 

[Bugthunder]

Well, I finished the bottom motor mount today and popped the frame off of the jig. I put the wheels and the forks on to see how it sits. When I install the pivots on the front forks the front end will lower just enough for the frame to sit level. So far, so good!

 

[silverbear]

Coming right along!
SB

 

[harry76]

Looking good and i love those forks. NICE WORK!!!!!!!!!!!!!

 

[LS614]

Ok this is looking BEAUTIFUL so far. keep it up!

 

[fasteddy]

That is a very nice frame and a super start to a really fine bike.

Steve.

 

[zachattack]

Looks awsome

 

[Bugthunder]

I forgot to mention this photo: This is what happens when you start losing argon while tig welding. I had a meter valve failure and lost half my argon before I found the problem. I will need to grind and re-weld this joint, but I have to weld the gussets anyway so it's only a little extra work.

Next up; the gas tank!

[/IMG]

 

[Bugthunder]

Cobrafreak, what size axel is the Sportsman moped drum brake? I may go to that instead.

 

[thegnu]

Same thing happens to my mig if the argon co2 starts to run out the welds get really crappy ,

 

[Bugthunder]

gnu, the argon is a shield and acts as a flux in both tig and mig welding, once the argon runs out, ****tyness ensues as you can see from my weld.
One thing I have noticed is argon flow-rate seems more critical in mig welding then with tig. Not sure why that is...

 

[Whozawhat]

with mig too much flow causes turbulance, not enough is well not enough

 

[thegnu]

i understand the gas is a sheild gas , what I meant was if my pressure fluctuates or the sheild gas is blown away by wind or what ever you will get a porous an crappy looking weld . I have also tried using lower pressures an different gasses but for me co2 an argon mixed works best .

 

[JohnThomas Sorrels]

Cobrafreak, what size axel is the Sportsman moped drum brake? I may go to that instead.

I don't know if you were still looking for a rear hub but below is a link for moped hubs that are very nice and inexpensive, they use a 12mm axle and accept many different chainrings that will work with 40 and 41 chain...

http://www.1977mopeds.com/parts/Wheels-and-Tires/BRAH/Brake-Hubs/

 

[cobrafreak]

I concur, 12mm. It's a beast. Very tough hub.

 

[cobrafreak]

I have a question for you. If you are using a Lifan engine with a five speed transmission and you are going to use a reduction jackshaft, how are you going to run it? Have the jackshaft 1:1 so it really isn't a reduction? Never go into first or second gear and just run it as a three speed? Put a very small rear sprocket on it to compensate?

 

[allen_okc]

awesome looking motorcycle, very clean...

 

[Bugthunder]

I have a question for you. If you are using a Lifan engine with a five speed transmission and you are going to use a reduction jackshaft, how are you going to run it? Have the jackshaft 1:1 so it really isn't a reduction? Never go into first or second gear and just run it as a three speed? Put a very small rear sprocket on it to compensate?

I am using a smaller final sprocket.

I could not calculate the exact gear ratios, only get close, so I have some options to slow it down if need be with the jackshaft setup.

I am using 1:1 from engine to jackshaft, a 26 tooth gear next to that and a 36 tooth sprocket at my rear wheel.