Rebuilding an F750

All about BMW in racing can be discussed. Sharing of pictures, and other information.
Werner1111
Posts: 49
Joined: Fri Dec 16, 2016 6:39 pm

Re: Rebuilding an F750

Post by Werner1111 »

Got it. Thank you. Where did you get the part that screws into the head? it sounds like it has the same OD as the Mikuni carb. That's where my problem was. I randomly found an old NOS aftermarket part on eBay.
R69 R90/6 R100/7 R100S R1150GSA S2R1000

User avatar
Ericandchi
Posts: 33
Joined: Sun Oct 09, 2016 10:11 pm

Re: Rebuilding an F750

Post by Ericandchi »

Keep in mind our bike has a 650 LS engine. The head inlet has same size OD as the carb outlet so it's a straight fit. In your case you have 2 different sizes.

https://www.amazon.com/Fernco-P1056-125 ... 181&sr=1-1

Dad commented in an email that we'll need to keep an eye on this plumbing coupling to make sure the fuel doesn't break it down. I think I'm going to take one and soak it in fuel for a week to see how it holds up.

Werner1111
Posts: 49
Joined: Fri Dec 16, 2016 6:39 pm

Re: Rebuilding an F750

Post by Werner1111 »

Ah, OK, I didn't catch that it had a 650 motor. I think I got turned around when you mentioned the R90S block. Thanks for sharing the extra detail.

The rear disc is really beautiful, along with the rest of the bike!
R69 R90/6 R100/7 R100S R1150GSA S2R1000

User avatar
Ericandchi
Posts: 33
Joined: Sun Oct 09, 2016 10:11 pm

Re: Rebuilding an F750

Post by Ericandchi »

Things are moving forward, the fairing is at the painter so we should have some nice body work soon. The bike is a clearly hybrid of the old and the new.

Last year I pryed the fork reflectors off because they didn't go with the theme. Dad recently made some nice plates to fill the void left. I think they look nice. If you look on right side of pic you can see the blue bean can of the wedgetail system.

Starter motor
Starter motor

Here's a view from above showing the light weight starter installed. We're too old to be trying to bump start the bike!
Attachments
F750
F750

User avatar
Ericandchi
Posts: 33
Joined: Sun Oct 09, 2016 10:11 pm

Re: Rebuilding an F750

Post by Ericandchi »

Bodywork is back from the painter, we're very happy with the results. Unfortunately the wrong plexiglass was sent when we bought fairing last year so working with supplier to remedy. Main thing left to do is mount oil cooler. Bike should be ready to start soon.


F750fairing.jpg

Post Reply