Author Topic: GOLDEN CB750 BROOKLYN (Read 26580 times)

zuehl666 · « **Reply #100 on:** June 05, 2013, 11:11:04 AM »

Only a few new things going on, building a new gas tank from scratch is one of them. I couldn't get the gas section of the tank to seal correctly, tried a few times and decided I'd rather build a steel tank that will attach to the frame and sit under the shell of the fiberglass. The oil will remain in the fiberglass as that is working just fine. So im in the process of hammer out a tank and welding it all together.

Cut up some course uni foam, oiled it and mounted in the lynx housings.

754 · « **Reply #101 on:** June 05, 2013, 02:33:10 PM »

Where did you get the UNImaterial..is it green ? Ranmy Webers open for years cuz my blackstuff crumbled out of my bug eyes...
I mean my linx filters not my avatar.

Probably had dismissed running Uni foam, had one catch fire lnthe 70,s....Oohhy Gooey..Mess..

.

zuehl666 · « **Reply #102 on:** June 05, 2013, 04:49:59 PM »

Quote from: 754 on June 05, 2013, 02:33:10 PM

Where did you get the UNImaterial..is it green ? Ranmy Webers open for years cuz my blackstuff crumbled out of my bug eyes...
I mean my linx filters not my avatar.

Probably had dismissed running Uni foam, had one catch fire lnthe 70,s....Oohhy Gooey..Mess.. .

I got a 12x24 sheet on amazon for like 15 bucks. It's the red you can see in the pic. Comes in a couple different densities, I got the course. The stuff that was in there was black and crumbly like you described.

BobbyR · « **Reply #103 on:** June 05, 2013, 05:21:14 PM »

I have been watching your build. I do a lot of work in Brooklyn down at the Coney Island subway yards. Someday I would like to see this bike in person.

zuehl666 · « **Reply #104 on:** July 15, 2013, 10:19:41 AM »

The bike is mostly done now. I still need to make a seat pan, put new tires on, and fix the reg/rec wiring. Otherwise its running strong.

I decided to make a steel gas tank that is hidden under the fiberglass shell. I couldnt get the fiberlass gas section to seal correctly, I think there was a little moisture in the tank when I initially sealed it as the sealer didn't adhere to the fiberglass well in some sections. I didn't have much luck with the antigravity battery either, I had the reg/rec hooked up incorrectly while I was syncing the carbs so the voltage dipped below 11 volts, apparently that ruins this type of lithium battery. Now it wont hold a charge for longer than a few minutes even with the reg hooked up correctly. So I have to decide whether to buy another one of those batts to save space and weight or just get the smallest agm battery I can find and modify the seat bump to hold it.

sazaver · « **Reply #105 on:** July 15, 2013, 10:51:56 AM »

I think you made a better decision on the tank move. It is essential to have %100 safe and functioning tank on a motorcycle.

zuehl666 · « **Reply #106 on:** July 15, 2013, 11:28:00 AM »

Quote from: sazaver on July 15, 2013, 10:51:56 AM

I think you made a better decision on the tank move. It is essential to have %100 safe and functioning tank on a motorcycle.

Exactly. Nevermind it could have started seeping at some point, if i dropped it the tank would have gushed gas on a hot motor/pipes. the oil is still in the fiberglass section, but I'm not too worried about that.

zuehl666 · « **Reply #107 on:** July 23, 2013, 08:39:20 AM »

I'm thinking about putting a small fairing on, I just mocked this up in photoshop using the airtech AJSM4 Dunstall quarter fairing. Is anyone running one of these? I'd like to see it on a 750 if anyone has a pic.

SOHC4 Cafe Racer Fan · « **Reply #108 on:** July 23, 2013, 06:05:30 PM »

I like the bikini fairing.

Syscrush · « **Reply #109 on:** July 23, 2013, 06:25:10 PM »

Wow. If I only saw the pic of the fairing alone, I'd have advised against it, but that PS job makes it look pretty amazing. Definitely go for it - I wouldn't have expected this but to me it really looks like just what the bike needs!

This machine is looking amazing, really looking forward to seeing everything wrapped up. Preferably parked outside The Gutter while I buy you a beer or two.

zuehl666 · « **Reply #110 on:** August 20, 2013, 09:53:57 AM »

A few updates....

I ended up getting a small agm battery from advance auto parts for 29.99, I had to cut out some of the bottom on the seat bump compartment and re-fiberglass it back to fit this new batt. Beats spending another 120.00 on a new antigravity battery. The antigravity batteries are very cool, but learn from my mistake and don't use it while you're shaking your bike down.

The stator cover had been leaking since I put the motor back in the bike, couldn't figure out why, brand new gasket, no cracks. Finally figured it out when I realized the bike was running way too high oil pressure and noticed it was coming from the rubber seals where the stator wires come through the cover. It was idling at 60-70 psi and under rev's would shoot up to 100..... pulled the oil pump and found that the pressure relief valve was stuck shut, it was a little gummy so I cleaned it up and rebuilt the pump. Now it idles around 20 and under revs goes up to about 60. I ordered another pump off ebay incase this one jams up again. I trimmed the covers for a different look. I don't have a pic, but I ended up removing the chain oiler because the rubber was worn out and pushing out too much oil. Just put a bolt in its place.

Finally got some new tires. I went with a 120/90/18 Avon Roadrider in the rear and a 100/90/19 Avon Cobra in the front. I wanted something with a modern sport tread pattern and these seem to be some of the only options available right now. Baby powder, tires levers, and a little warmth from the heat gun got the job done.

Syscrush · « **Reply #111 on:** August 20, 2013, 11:14:47 AM »

Better and better. Love it.

zuehl666 · « **Reply #112 on:** August 22, 2013, 10:00:45 AM »

Picked up this oil filter/cooler adapter from cyclex. Right now I have the cooler in line on the scavenge line to the tank, to cool it down a bit before it gets into the tank and between my legs. I have the cooler behind the carbs mounted on the frame rails, it gets a decent amount of air flow but not as much as it would if it were mounted up front. I do a lot of city riding (traffic, sitting at lights). Im thinking mounted up front over the headers isn't too great for this type of riding because of the immense heat radiating off the headers, but I'm open to opinions. Also its running a bit rich during this type of riding, Im assuming thats mostly the idle jet circuit and I can maybe lean it out a bit with the mixture screws?

sander · « **Reply #113 on:** August 22, 2013, 10:39:25 AM »

Wow! You dont need glasses with that tach! I like it though and the fairing too, looks great.

Syscrush · « **Reply #114 on:** August 22, 2013, 07:43:10 PM »

Quote from: zuehl666 on August 22, 2013, 10:00:45 AM

Im thinking mounted up front over the headers isn't too great for this type of riding because of the immense heat radiating off the headers, but I'm open to opinions.

I agree that it sure seems like a bad place, but if you look at modern sportbikes, they use almost every square inch of frontal area for rads, and they run very close to the headers. I don't think that you need to worry about radiant heat from external sources heating up the oil, the main thing is to get air moving through it so that you have good convective heating.

zuehl666 · « **Reply #115 on:** August 29, 2013, 12:33:42 PM »

I was having an issue where the clutch would shudder from a stop to trying to start rolling. It felt like as I was letting out the lever the clutch would engage then disengage a few times then finally stay engaged, felt fine under rolling torque, no slipping. SO I figured maybe the discs were warped or weak springs. I installed new heavy duty springs and EBC discs last night, used the stock metal plates. The old discs had meat on them still and didn't seem warped that I could see anyway. They did seem like they had a glaze over them though. The springs were about 35mm long still but seemed soft.

Old stuff

New

The previous owner definitely worked on the clutch before, the lock nut wasn't tight in the least bit, the only thing really holding it on was the locking tabs that he thankfully bent over like a caveman.

While I had it out I decided to drill out a few more oil holes, and then I soda blasted all the grime off it.

Also shaped up some closed cell foam for my seat, its not perfect yet but will do the trick for now.

Flap disc on the angle grinder bit me a little bit while shaping that haha.

MOONDOGNYC · « **Reply #116 on:** August 29, 2013, 03:27:11 PM »

Looking real good...(not the finger).
Let me know when you're on the road. I'm sure you're itching to get it on some nice twisty roads.

Syscrush · « **Reply #117 on:** September 02, 2013, 04:51:48 PM »

Have you had the clutch back together and taken it for a spin? How's it feeling?

zuehl666 · « **Reply #118 on:** September 19, 2013, 10:53:45 AM »

Quote from: Syscrush on September 02, 2013, 04:51:48 PM

Have you had the clutch back together and taken it for a spin? How's it feeling?

Well, I put the new clutch plates in and new springs. It felt much better right off the bat but I could still feel a little slip and grab as the clutch was engaging. So I pulled it back out to inspect the metal plates again, they were pretty much slick, the texture that was on them from the factory was barely there. So I decided to sandblast them. After I put it back together I'd say its 90% better. I can still feel a tiny bit of slip and grab but its hardly there. Those springs are super stiff too, If anyone is looking for performance springs for a good price those were only about 15 bucks.

RustyOlive · « **Reply #119 on:** September 19, 2013, 02:04:01 PM »

Wow! Wicked build!

zuehl666 · « **Reply #120 on:** September 19, 2013, 02:23:23 PM »

Also, I decided to just keep the oil cooler in the back for now and hooked it up to the cyclex filter adapter up front.

RustyOlive · « **Reply #121 on:** September 19, 2013, 02:51:08 PM »

Quote from: zuehl666 on September 19, 2013, 02:23:23 PM

Also, I decided to just keep the oil cooler in the back for now and hooked it up to the cyclex filter adapter up front.

Rather curious if that cyclex oil cooler ring works on cb550's?
Anyone know? Guess I could ask cyclex if it does or of they have that kit for 550's... ? Hahaha.

zuehl666 · « **Reply #122 on:** September 20, 2013, 10:13:01 AM »

Quote from: zuehl666 on September 19, 2013, 02:23:23 PM

Also, I decided to just keep the oil cooler in the back for now and hooked it up to the cyclex filter adapter up front.

They make them for the 550 http://www.cyclexchange.net/500-550-Hi-Perf.htm
about 3/4 down the page

RustyOlive · « **Reply #123 on:** September 20, 2013, 10:34:01 AM »

Out standing! Thank you.
Throwing that on my christmas gift list.

haha

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Author Topic: GOLDEN CB750 BROOKLYN (Read 26580 times)