Author Topic: 72 CB500 Restomod - Update Sold! (Read 46118 times)

spuds · « **Reply #250 on:** August 24, 2018, 04:38:25 PM »

Hey Scramps,

Just spent some time reading through the thread. The bike is coming along nicely----and (not pretending for a minute to have a ton of experience here) I for sure echo other's comments about taking your time with stuff, not allowing yourself to get too frustrated. This activity of taking some old mechanical thing and making it function and look decent again (for me and I judge many of us) is a hobby----right? Supposed to be therapeutic. I've enjoyed hearing the joy in your voice when those small victories happened.

On the carb not getting gas thing---any maybe someone else stated this suggestion in a different manner(?), but check to make sure the floats are not sticking in the upward position when the bowl is attached. That was causing me some grief on my T500 build a couple of years back. Turned out that the float was sitting a little crooked, and the bowl going on would lift the float, thereby making the carb think if was full of fuel.

Looking forward to seeing the finished product, and hearing the resulting happiness in your voice.

Scramps · « **Reply #251 on:** August 25, 2018, 03:30:15 PM »

Firstly, thank you spuds, that’s very kind. I’m glad that you’re getting some joy from my story.

Second, I need to take a moment to acknowledge that the last thing that I posted was pretty dumb. Of course the air couldn’t flow through in the upside down position, that’s what it’s supposed to do, dummy.

Anyway, carry on.

Scramps · « **Reply #252 on:** August 27, 2018, 07:04:10 PM »

Are these carburetors plumbed in such a way that 2 & 4 will fill before 1 & 3?

I also noticed that on the petcock, one of the brass fittings for the fuel lines is slightly longer than the other one. Are they intended to be hooked up in a certain way?

My tank is still harboring some rust flecks and other debris. It has partially clogged my fuel valve, so I’m going to prepare to do a very thorough cleaning of the tank. You know, to the best of my ability.

Any special tricks I should know about that will make cleaning easier and/or more effective?

RAFster122s · « **Reply #253 on:** August 27, 2018, 08:45:13 PM »

Chain or screws to break up any rust in the tank...shake shake shake

Electrolysis is a good method or getting rid of the rust.
If your rust is bad you may need to consider lining with Caswells after cleaning all the rust out.
You gotta get rid of the rust or it will dog you constantly until you take care of it...

Scramps · « **Reply #254 on:** August 28, 2018, 04:03:29 AM »

Sorry, I should clarify; the interior surfaces of the tank are not rusty, there’s just some loose granular stuff in there that’s clogging my fuel valve.

I rinsed the tank out a bunch when I did the evaporust treatment, but there’s clearly more stuff in there. Is there a trick to making the rinsing more effective? There’s a lot of corners and crevices for that junk to hide in

calj737 · « **Reply #255 on:** August 28, 2018, 09:56:58 AM »

Got to the local Lowes or Home Depot. Look in the aisle where Brooms, Mops, and Cleaning products are sold. Grab 1 gallon of ZEP Acidic Toilet Bowl Cleaner. Runs about $10.

Drain the gas tank. Pour the gallon in. Carefully and slowly slosh it around, tumbling the tank upside down especially. Let stand for 10 minutes. Repeat the tumble. Even prop it so the filler neck is up, but "underneath". This will insure the underside of the top panel gets cleaned. Let stand 10 minutes.

Another tumble, drain back into the gallon container with a funnel, rinse well with detergent and water. Drain the water, fill with 1/2 gallon gas and some 2 stroke oil or a bit of Marvel Mystery Oil and slosh that around. This neutralizes the acid, and "fogs" the tank. Should be clean as a whistle now.

Fill with fresh gas and ride it.

Scramps · « **Reply #256 on:** August 28, 2018, 01:46:37 PM »

That’s what I’m talking about, thank you cal

Scramps · « **Reply #257 on:** August 29, 2018, 07:00:56 PM »

Did some rinsing on the tank earlier, and so many tiny rust flecks came out. It was kind of upsetting. I got a flashlight and looked down in there as best I could, and saw that the top of the tunnel on the inside had rusted up quite a bit since the last time I cleaned it.

I'm starting to consider lining the tank. Caswell seems to be pretty good quality stuff. What would you fine folks suggest?

calj737 · « **Reply #258 on:** August 29, 2018, 07:32:30 PM »

De-rust it and treat as I described. Absent of pinholes, skip the liner.

Scramps · « **Reply #259 on:** August 30, 2018, 10:10:37 AM »

2.25 gallons of evaporust in the tank today, turning it over periodically

Scramps · « **Reply #260 on:** August 30, 2018, 04:34:26 PM »

Rust treatment complete. Rinsed, degreased, rinsed rinsed rinsed then dried. Sloshed coating of MMO to stave off flash rust. Heading to Lowe’s for some ZEP after dinner

calj737 · « **Reply #261 on:** August 30, 2018, 04:49:54 PM »

You won't need the Zep now! It instead of EvapoRust. Fill it with gas and go riding!

Scramps · « **Reply #262 on:** August 30, 2018, 07:55:24 PM »

Oh! Well heck yeah then!

I’ve got a few more parts coming in tomorrow, once those are installed and ready, I should be able to eke out a little bit of riding time before the cold weather hits.

New AGM battery
Front brake light switch
Fiberglass wrapped muffler inserts
Air filter

I also picked up a couple of inline fuel filters, and I’ve ordered some new small analog clocks from cognito moto.

I pulled off my 4-2 exhaust this evening, cleaned it up to the best of my ability and knocked out the end caps to make way for the muffler inserts. Then i shot it with some 2000* high heat black paint.

It’s not 100% ideal, but short of dropping several hundred dollars on a new exhaust system, this is probably about the best I can do for now.

The last piece of the puzzle is that clutch push rod. I’ve got the tool steel, I’ve cut it and done the shaping, now I just need to heat treat it. I have Zero experience with hardening steel, so I’m going to pay a local gunsmith to do it.

I plan to postpone repainting the tank until winter. Barring the unforeseen, I should be riding this thing next week!

Gurp · « **Reply #263 on:** August 30, 2018, 08:04:51 PM »

Heck yeah! I would be paying the smithy too pal.

Scramps · « **Reply #264 on:** August 31, 2018, 10:12:41 AM »

Got my gas cap hardware sorted out. I had to buy a bunch of these screws and nylon locknuts, minimum quantity was 25 pieces, so if anybody wants some of these I can fix you up

RAFster122s · « **Reply #265 on:** August 31, 2018, 10:44:43 AM »

If that is black oxide you are going to want to keep it well oiled or it will rust very easily. A swab of grease coating the fastener completely before assembly might keep it from rusting.

Scramps · « **Reply #266 on:** August 31, 2018, 12:17:12 PM »

The listing described them as “12.9 Grade Alloy Steel;Color : Black” which led me to believe that they’re just painted black. I can put some grease on them just in case though

calj737 · « **Reply #267 on:** August 31, 2018, 04:46:15 PM »

Black oxide

Gurp · « **Reply #268 on:** September 01, 2018, 10:06:15 AM »

Definitely keep those coated. I made that mistake once. Built a ninja 500 streetfighter and put the cowl (freshly painted artic white) on with allen cap black oxide......

After about a month i realized id messed up.

Scramps · « **Reply #269 on:** September 01, 2018, 09:30:24 PM »

I shot them with some silver acrylic enamel, but that’s not all I did today!

https://youtu.be/lMmR5Ni9JwY

After I cleaned the tank and petcock out, fuel flow was restored, so all four cylinders are burning like they should.

I installed the previously mentioned baffles in my old 4-into-2s, they sound a thousand times better than the open pipes, but still a little noisy for my taste.

The oil has been changed in preparation for hitting the road.

The front brake light switch has been replaced and is now fully functional.

Installed the new tiny tach and speedometer. The new odometer can reflect the mileage accrued since the partial engine rebuild. Also the ones I had on weren’t from this bike, and they were kind of janky.

My original damaged side covers are going to hang out and collect stickers for the time being. I will replace them with some replicas once they become available.

The plan now is to get the fuel/air ratio dialed in, and ride as much as physically possible between now and winter time.

If it weren’t already after midnight and I weren’t so sleepy, I’d be on the road right now!

calj737 · « **Reply #270 on:** September 02, 2018, 04:39:38 AM »

Well wake your butt up and come ride with us! 5 friends and I are marauding the back roads in your area since Friday. Once more today before we split and turn homeward. Better push back from the Cap’n Crunch and trade your slippers for riding shoes if you’re coming with us

Scramps · « **Reply #271 on:** September 02, 2018, 05:28:46 AM »

Nice! There are some really nice backroads around here. Just gotta keep your eyes peeled for the deer, the population has exploded in recent years. Hope you guys didn’t get caught in any of the thunderstorms the past couple days, we’ve had some real torrents!

calj737 · « **Reply #272 on:** September 02, 2018, 10:52:28 AM »

Ride fast enough and get air dried.

Scramps · « **Reply #273 on:** September 02, 2018, 10:57:33 AM »

That’s the spirit.

On an unrelated note, I’m now in search of a kickstand. I have 2, one’s a custom job that’s way too long, and the other is from a 550, so it interferes with the shift lever

Scramps · « **Reply #274 on:** September 02, 2018, 01:05:21 PM »

Well that was easy, found several on eBay and ordered one

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Author Topic: 72 CB500 Restomod - *Update* Sold! (Read 46118 times)

Author Topic: 72 CB500 Restomod - Update Sold! (Read 46118 times)