Author Topic: CB750 K4 Build - The Cafe Tracer (Read 118869 times)

budman · « **Reply #175 on:** January 02, 2016, 01:28:40 PM »

This seal is part of the All Balls front wheel bearing kit. I can't identify it on the parts diagram or in my pile of old parts. It's the larger of two seals in the kit. I know where the smaller seal goes. Is this for another model? I see the kit fits a bunch of bikes.

budman · « **Reply #176 on:** January 03, 2016, 08:40:46 AM »

Upon closer inspection that seal appears to be for the speedo drive.

budman · « **Reply #177 on:** January 03, 2016, 07:12:07 PM »

Scratch that. It's not a speedo drive seal.

budman · « **Reply #178 on:** January 23, 2016, 11:50:57 AM »

I couldn't put it off any longer. Finally laced the front wheel.

Stev-o · « **Reply #179 on:** January 23, 2016, 06:24:19 PM »

Looks good, Bud. Who's doing the powder coating?

budman · « **Reply #180 on:** January 24, 2016, 06:53:40 AM »

That's paint...it was me that sprayed it.

Was hoping to have the triple trees installed yesterday too, but I hit a couple of snags. Nothing that can't be fixed. Going to visit my buddy at his machine shop this afternoon and get those issues taken care of.

budman · « **Reply #181 on:** January 24, 2016, 01:25:53 PM »

Now that I know all the steering parts fit I can take it all back apart and pack the bearings.

These are the Cycle X trees. The only real problem was with the hex key bolts they use for steering stops. I couldn't get the bottom tree all the way in. The bolts were hitting the bottom of the neck, like the bolts weren't quite far enough apart. I had my buddy turn down the diameter of the bolt heads and the tree slid right into place.

mystic_1 · « **Reply #182 on:** January 24, 2016, 02:58:32 PM »

Hey glad you got it sorted and that it was a fairly easy fix.

One thing that i learned from a Harley guy back in the day is that if possible, when using a bolt as a steering stop pin, and the hole goes all the way through, is to use a long hardened bolt and install it up from underneath. That way if it ever sheers off, you can just unwind it from the bottom and install a new one, rather than having the head sheer off and needing to go at it with easy outs.

Anyway, those trees look tasty.

Reading back though I see that you're not planning to run a front fender. Be aware that the fender bracket is a structural member that is intended to help keep the fork from twisting, it supports the upper ends of the fork lowers. You will get more flex in the front end without it.

mystic_1

budman · « **Reply #183 on:** January 24, 2016, 03:40:23 PM »

That's a good idea. You would probably want to turn the bolt and loose the threads on the end that sticks out the top of the tree.

I'm aware of what I might be facing with the front end. I just don't like front fenders. Been running my rigid with no fender for nine years. I installed a fork brace on it when I swapped the front end last summer. I haven't tried to ride it without the brace. Too many other things going on and don't have time to mess with it. If I have trouble with the CB750 I'll probably come up with some kind of brace. I'm running shorter forks and the way these Cycle X trees are designed it looks like the tops of the tubes will end up being higher than factory. Shorter folks should equal less flex...theoretically. Thanks for the concern.

mystic_1 · « **Reply #184 on:** January 24, 2016, 03:49:50 PM »

Cool yeah shorter forks will flex less, my forks are like +8 inches so more of an issue there haha.

cheers
mystic_1

Stev-o · « **Reply #185 on:** January 24, 2016, 03:51:38 PM »

Hey Bud...I ran my 550 w/no fender without a brace with no issues. I actually bought a brace but sold the bike before ever installing it.

I have a K3 that I plan to run fenderless but plan to install this brace...

http://www.ebay.com/itm/252047610220?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

budman · « **Reply #186 on:** January 24, 2016, 04:00:37 PM »

Quote from: Stev-o on January 24, 2016, 03:51:38 PM

Hey Bud...I ran my 550 w/no fender without a brace with no issues. I actually bought a brace but sold the bike before ever installing it.

I have a K3 that I plan to run fenderless but plan to install this brace...

http://www.ebay.com/itm/252047610220?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Cool. Don't you have to be really careful with that type of brace? They mount on the tubes, right? Too low and you loose travel, too high and you defeat the purpose. The brace on my rigid attaches to the lower legs and curves over the tires. It's really just an extremely short fender.

mystic_1 · « **Reply #187 on:** January 24, 2016, 04:04:39 PM »

Yes the bolt-to-lowers type of fork brace is much much better, and you're right about the issues with upper-fork-mounted ones.

mystic_1

mystic_1 · « **Reply #188 on:** January 24, 2016, 04:06:43 PM »

By the by, I really like the balance of black-to-shiny on that rigid, just the right proportions for them to set each other off.

Is that a hand-stitched seat? looks nice.

mystic_1

edwardmorris · « **Reply #189 on:** January 24, 2016, 04:09:53 PM »

Quote from: Stev-o on January 24, 2016, 03:51:38 PM

Hey Bud...I ran my 550 w/no fender without a brace with no issues. I actually bought a brace but sold the bike before ever installing it.

I have a K3 that I plan to run fenderless but plan to install this brace...

http://www.ebay.com/itm/252047610220?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Using an F2/3 lower front end, right? Or is someone finally making usable braces for the early 750Ks?

Stev-o · « **Reply #190 on:** January 24, 2016, 04:54:36 PM »

Quote from: edwardmorris on January 24, 2016, 04:09:53 PM

Quote from: Stev-o on January 24, 2016, 03:51:38 PM
Hey Bud...I ran my 550 w/no fender without a brace with no issues. I actually bought a brace but sold the bike before ever installing it.

I have a K3 that I plan to run fenderless but plan to install this brace...

http://www.ebay.com/itm/252047610220?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Using an F2/3 lower front end, right? Or is someone finally making usable braces for the early 750Ks?

I do have an F frt end I plan to use.

A proper fork brace does not attach to the tubes, we call those tweak bars. Were used on choppas with extended front ends.

budman · « **Reply #191 on:** January 24, 2016, 06:10:45 PM »

Quote from: mystic_1 on January 24, 2016, 04:06:43 PM

By the by, I really like the balance of black-to-shiny on that rigid, just the right proportions for them to set each other off.

Is that a hand-stitched seat? looks nice.

mystic_1

Thanks. Yes, I recovered the seat myself and did the stitching. I'm going to do basically the same type of cover on the CB750 seat.

budman · « **Reply #192 on:** January 24, 2016, 06:17:39 PM »

Quote from: Stev-o on January 24, 2016, 04:54:36 PM

I do have an F frt end I plan to use.

Ok. I see how that brace will work now.

budman · « **Reply #193 on:** February 06, 2016, 03:54:15 PM »

I feel like I got a lot done today. The rear wheel is finally balanced and installed for what I hope is a very long time, at least until I need a new tire. The rear suspension is pretty much all together. I got the forks built and installed. Also the oil tank is installed.

I should have a roller in two weeks.

Stev-o · « **Reply #194 on:** February 06, 2016, 03:56:24 PM »

Looks good Bud. Now you need a motor!

mystic_1 · « **Reply #195 on:** February 06, 2016, 03:57:53 PM »

Starting to be shaped like a motorcycle again!

Exciting times.

mystic_1

budman · « **Reply #196 on:** February 06, 2016, 03:58:47 PM »

Quote from: Stev-o on February 06, 2016, 03:56:24 PM

Looks good Bud. Now you need a motor!

Definitely! I'm trying.

budman · « **Reply #197 on:** February 06, 2016, 04:00:46 PM »

Quote from: mystic_1 on February 06, 2016, 03:57:53 PM

Starting to be shaped like a motorcycle again!
Exciting times.

mystic_1

Motorcycle shaped...that's what I'm after.

calj737 · « **Reply #198 on:** February 07, 2016, 03:05:48 AM »

Looks really shiny! That rear wheel/tire clearance against the subframe looks very tight to your new hoop $:-\$ Have you had a chance to check it under full compression for rubbing???

budman · « **Reply #199 on:** February 07, 2016, 06:27:46 AM »

Quote from: calj737 on February 07, 2016, 03:05:48 AM

Looks really shiny! That rear wheel/tire clearance against the subframe looks very tight to your new hoop $:-\$ Have you had a chance to check it under full compression for rubbing???

No, I just pulled the shocks out of the box and installed them. There's definitely some adjustments needed. Just haven't gotten that far yet.

News:

Author Topic: CB750 K4 Build - The Cafe Tracer (Read 118869 times)