Belt Driven Primary

[Mr. Wright]

That's sweet Semi

 

[firedog19]

Here is my primo

 

[BadDawg Bill]

Got it on!

Got my Ultima 3.5 belt drive on today. Only problem is the stock jack shaft not aligning. It starts but sometimes hangs up. Ordered a Jack fix from Scooters. The belt drive took out 50% of the vibration and now shifts better and I can actually find neutral!

Doing 75 - 80 my mirrors work! I can see what kind of car is behind me. Sound good too. A lot less noise compared to the BDL drives I put on my other bikes.

This is for a 2004 Chopper 107: Parts needed:

Midwest motor pulley insert/offset 1 1/2 Part # 58-611

Midwest Nut motor pulley long Part # 58724

Global motor spacer (inner pulley) Part # 17-270

Scooters Jack shaft fix (found on ebay)

:2thumbs::2thumbs:

 

[FrankBDPS]

Bill, that looks awesome!

 

[Brew]

Belt drive looks great, I love them! :2thumbs:

 

[Mr. Wright]

Hey Bill, you have anymore info on that jack shaft fix. I'm wondering if that be part of my problem.

 

[Nukeranger]

Looks great. Thanks for sharing. :2thumbs:

 

[nhstomper]

As others have said it looks awesome. If you dont mind could you post a final cost for doing this?

 

[BadDawg Bill]

The jack shaft fix:

Ultima Belt Drive Fix Starter Jackshaft Ultima BDL Harley The Grind Stops | eBay

And the total cost for the belt drive all parts, labor was $1,700

 

[nhstomper]

Thats not bad at all. Did you get the primary off ebay?

 

[BadDawg Bill]

Thats not bad at all. Did you get the primary off ebay?

Yes, fast shipping and good communication. I also forgot to say the clutch hub has to be drilled out 1/4 inch to fit the Baker shaft. I think they have a clutch hub to fit the Baker so ask first.

Ultima Drag Belt Drive for Harley Davidson Primary Titan Big Dog Iron Horse CMC | eBay

 

[Mr. Wright]

Thanks Bill

 

[Mr. Wright]

Ultima Belt Drive Fix Starter Jackshaft Ultima BDL Harley The Grind Stops | eBay

Thanks again for this info.
The Kaptin rebuilt my starter, and I put this jack shaft on it. Hasn't missed a tooth one time yet.

 

[Mickeetwo]

I've seen and rode with Firedog.....Its looks and sounds cool

 

[Mw548]

Yes, fast shipping and good communication. I also forgot to say the clutch hub has to be drilled out 1/4 inch to fit the Baker shaft. I think they have a clutch hub to fit the Baker so ask first.

Ultima Drag Belt Drive for Harley Davidson Primary Titan Big Dog Iron Horse CMC | eBay

I know this is an old thread but I’m currently doing an Ultima open primary swap when you guys say drill out 1/4 inch are you saying removing the splines 1/4 inch or increasing the bore 1/4”?

 

[Mr. Wright]

I know this is an old thread but I’m currently doing an Ultima open primary swap when you guys say drill out 1/4 inch are you saying removing the splines 1/4 inch or increasing the bore 1/4”?

If you go back a page and look at post 8. You can see in picture 3, the back side of the hub. Yes we cut the splines out, but only deep enough to align the clutch housing

 

[Mr. Wright]

You will need this jack shaft too.
http://www.ebay.com/itm/Ultima-Belt...Parts_Accessories&hash=item58b2a55e67&vxp=mtr
Also when you go to start it the first time after you get it together, I would recommend clamping your battery cable to the battery with a pair of vise grips. That way, if the starter sticks, you can disconnect the battery faster.

 

[francoblay1]

I know this is an old thread but I’m currently doing an Ultima open primary swap when you guys say drill out 1/4 inch are you saying removing the splines 1/4 inch or increasing the bore 1/4”?

... and check THIS out too.

 

[Mw548]

it looks like it’s gonna be about 1/4” machined out i didn’t catch that the splines hit and ran it up with the main nut i then spent about two hours trying to get the basket off the trans shaft cuz it got wedged on there my buddy is a machinist I’m gonna have him bore it out did you guys just have it cut to the lowest part of the spline or was the trans shaft bigger then that i forgot to measure the shaft while i was over at my buddies. The bike is in storage still at his house for a few more weeks yet.

 

[Mr. Wright]

You'll have to measure the shaft.