Author Topic: Spare Change- First Bike (Read 25429 times)

Stev-o · « **Reply #100 on:** February 21, 2018, 02:27:37 PM »

Quote

Unless the floats are not closing off and causing excessive fuel to back draft into the air cleaner.

That would be my guess. Take a look in the airbox...

Dads Toy · « **Reply #101 on:** February 24, 2018, 06:27:10 PM »

Well it was another pretty day. Almost in the 80's.

Had to go for another ride. Love it... just riding slow around the neighborhood. Bike starts and runs great. I still need to get tires before cranking up the speed any or making tight turns. Been polishing some of the chrome. To my plus the PO had wax all the chrome. So all I had to do is use some OO steel wool on it to knock off the haze. Really looking good. Got the speed-o to work.
So thinking about selling it now and have been trying to figure out what it would be worth. Trying to find comparable pricing on ones listed. That's the funny part.
There aren't many of these CB650's. You can find CB500, 750 etc all day long. But no CB650C. You would think these would be more popular. I had the same deal with trying to find parts for this bike. You can find parts for a CB750 no problem. But try and find parts for a CB650C. Wonder why this is. Still love the bike.

seanbarney41 · « **Reply #102 on:** February 24, 2018, 06:40:54 PM »

not much love for that style and era these days I'm afraid...maybe a shame, as it is probably perfectly enjoyable ride. Why not keep it for a while and enjoy learning to ride and wrench? No telling what future trends lie ahead?

Stev-o · « **Reply #103 on:** February 24, 2018, 06:43:50 PM »

Yes, it's kind of the red headed step child in the SOHC world (no offense intended)

As far as value, it's worth as much as someone will pay for it. In good running cond, I'd hope it's worth at least 2 grand?

crazypj · « **Reply #104 on:** February 25, 2018, 09:02:00 AM »

I liked the look of 650 C when it was launched and still like look of it today, BUT, not enough to actually buy one.
Superbikes were 'on the way in and sport bikes were still a few years in the future but 'going fast' was on the way when the custom was launched, speed camera's hadn't 'been invented' in late 70's (or at least were no available to majority of the world, 'Radar trap's were still 'a thing')

Dads Toy · « **Reply #105 on:** February 25, 2018, 04:05:57 PM »

Quote from: crazypj on February 25, 2018, 09:02:00 AM

I liked the look of 650 C when it was launched and still like look of it today, BUT, not enough to actually buy one.
Superbikes were 'on the way in and sport bikes were still a few years in the future but 'going fast' was on the way when the custom was launched, speed camera's hadn't 'been invented' in late 70's (or at least were no available to majority of the world, 'Radar trap's were still 'a thing')

I've always love the style of these bikes. Plus they way they sound with the right exhaust mod on them. Right now I am keeping everything stock. I might get a shorter shift lever. The one that is on there is so long that my foot hits the generator housing when shifting. Thinking a shorter one would place it in a position where my foot wouldn't hit the motor. Really would like to mod it to a heal toe shift lever. Now that would be cool.

SOHC4 Cafe Racer Fan · « **Reply #106 on:** February 25, 2018, 04:36:58 PM »

The 1979 Standard is probably more desirable. It kept the same geometry as to the CB500/550 and upped the power by about 10 hp.

crazypj · « **Reply #107 on:** February 26, 2018, 10:31:18 AM »

Quote from: Dads Toy on February 25, 2018, 04:05:57 PM

Quote from: crazypj on February 25, 2018, 09:02:00 AM
I liked the look of 650 C when it was launched and still like look of it today, BUT, not enough to actually buy one.
Superbikes were 'on the way in and sport bikes were still a few years in the future but 'going fast' was on the way when the custom was launched, speed camera's hadn't 'been invented' in late 70's (or at least were no available to majority of the world, 'Radar trap's were still 'a thing')

I've always love the style of these bikes. Plus they way they sound with the right exhaust mod on them. Right now I am keeping everything stock. I might get a shorter shift lever. The one that is on there is so long that my foot hits the generator housing when shifting. Thinking a shorter one would place it in a position where my foot wouldn't hit the motor. Really would like to mod it to a heal toe shift lever. Now that would be cool.

Spline pattern is same as C90 so heel-toe lever should be simple to find. Earlier C50/C70 used a smaller shaft, I think 10mm?

Dads Toy · « **Reply #108 on:** February 28, 2018, 07:26:46 PM »

Thanks for the info Crazypj. I'll have to look into that mod.

Another issue. Chain
The chain that is on there. Some of the O-rings are coming off. So I think a replacement chain is in order. When trying to find a chain it's hard to find the right one. I have found a 520x104L. I am thinking I need a 50x104L. The chain does say 50x. Can I run the 520 chain?

crazypj · « **Reply #109 on:** March 01, 2018, 10:31:49 AM »

520 is only 1/4" between plates, pretty sure you need a 530 (3/8") measure width (thickness) of sprocket

Dads Toy · « **Reply #110 on:** March 01, 2018, 07:30:09 PM »

Measured the back sprocket and it is 9.97mm or 25/64th. I would think this would be close to the 3/8" mark? It has on the chain 50x0m. The manual only says 104L. I spend more time trying to find the parts for this bike than fixing it. The chain that is on there looks okay. Just have to clean it some more. Problem is the o-rings are coming off from dry rotted and not being lube for so long. Wonder if it is safe to ride this way.

Dads Toy · « **Reply #111 on:** March 02, 2018, 11:52:08 AM »

So there is more than just a chain. There is pitch, with and roll. So after measuring and measuring I came up with a 530X104L chain is needed for this bike. Hope I am right.
Found these helpful sites to help determine which size to get. I measure about a 15.75 pitch and about a 9.35 on the existing chain. So I should be pretty close with a 530. The stamping on my chain is rk 50m0.

https://allmoto.ie/site/motorcycle-chain/
Also found this youtube video that help explain what the numbers mean.

So I hope this will help others when selecting a new chain.

crazypj · « **Reply #112 on:** March 03, 2018, 01:11:57 PM »

Quote from: Dads Toy on March 01, 2018, 07:30:09 PM

Measured the back sprocket and it is 9.97mm or 25/64th. I would think this would be close to the 3/8" mark? It has on the chain 50x0m. The manual only says 104L. I spend more time trying to find the parts for this bike than fixing it. The chain that is on there looks okay. Just have to clean it some more. Problem is the o-rings are coming off from dry rotted and not being lube for so long. Wonder if it is safe to ride this way.

You need some clearance to prevent excess friction plus lube and a bit of dirt.
Sizes should be in decimal and fractional form, 3/8" = 0.375", 25/64 is about 0.340" with pitch 5/8" or 0.675. It's a 'metric' bike with a lot of 'Imperial' sized parts. The 'code' on chain is due to 'axis powers' not wanting to admit they use 'British' stuff (really, historical facy)

Dads Toy · « **Reply #113 on:** March 16, 2018, 06:27:38 PM »

Well guys and gals it looks like I might have to sell my project bike.

Just when I thought I was getting so close to riding it this summer. I had to go to the VA Hospital to have my foot look at again. It has taken me 20 years to get broken pieces of bone and shrapnel out of my left foot. First operation gave me about 4years of good quality of life. But with age I am having to get a total toe replacement. Which is my shifting foot

So after the operation I will not be able to ride and will take months of therapy just to walk again. So thinking about sell her and let someone else enjoy it. I still want to ride. Just have to get an automatic bike like a sliverwing or a honda ctx with the dct. I really hate to sell it. Maybe if I mod the shifter leaver to a heal-toe bar I could get by. Probably more trouble than its worth. Enough of the sob story. If anyone is interested shot me a PM offer. I just might let it go.

jgger · « **Reply #114 on:** March 16, 2018, 06:58:04 PM »

Say it aint so! I have enjoyed reading about your adventures with this bike and dream you have. A heel toe shift lever should be easy to either source or make. If you don't need the money for the operation or recovery I think you could keep the bike. I am sure that someone on this site can help a veteran out with his dream to ride.

Heck if I can find an old shifter that fits I think I could do an ugly mod to it to add a heel step. I have a 79 CB 650 I can do a mock up on. I want to see that you are riding that bad boy!

754 · « **Reply #115 on:** March 16, 2018, 06:59:51 PM »

Just hold on, there is an easy solution.
Mod your shifter on the end to take the Harley style rubber shifter, it's about 1 inch diameter and ribbed.
Then mount your shifter at about 30 or 40 degrees and use the back of your boot to shift up and the heel to shift down.
IT may be a pita for around town, steady use, but to go for aride once in a while it should work.
Very therapeutic and will put a big smile on your face.

I know this because I was in a cast for a year, but I was still able to dragrace and win..
The rules were a bit lax at our track in them days.
So hang in there, hope it works out..

Dads Toy · « **Reply #116 on:** March 17, 2018, 03:01:48 PM »

I know it crazy. I just sold some old camera equipment so I could buy my tires and chain. It was such a nice day today I took it out so the battery stays charge. I do short skills test in my cul-de-sac road. Still a lot of fun learning to ride. I keep watching other people youtube videos of CB650 customized and keeps the dream alive.
I had also thought of a suicide shifter where you put the clutch handle on a rod that moves the shifter up/down. I'll have to research that Harley style rubber shifter. First I hear of this. If you find a picture post it.

Dads Toy · « **Reply #117 on:** March 17, 2018, 03:15:34 PM »

So I found a couple of solutions that might work. Better than what is on there now. This might help someone else that was thinking about this.
http://www.motorcyclevalley.com/tips-bn/motorcycle-gear-shift-patterns/
This could work. Would allow me to wear a heavier boot to protect my ball joint of my toe.

Dads Toy · « **Reply #118 on:** March 17, 2018, 07:17:18 PM »

Wonder if this would work. Should be about the same spline shaft size. Just thinking the pedals might be too long and would hit the motor case and the foot rest.

https://www.ebay.com/itm/HEEL-TOE-SHIFT-LEVER-PEDAL-SHIFTER-honda-CT-90-CT90-TRAIL-VINTAGE-1970/322935040487?hash=item4b306da9e7:g:3ZUAAOSwQcJaLvPx&vxp=mtr

754 · « **Reply #119 on:** March 17, 2018, 09:22:44 PM »

Weld a nut or bung to your shifter to take this ..

Dads Toy · « **Reply #120 on:** March 18, 2018, 05:59:40 PM »

Went for a practice ride today. Weather here was nice.

After I got back and pulled it into the garage it makes a noise like a bad rod bearing. But it goes away after you pull in the clutch. I still think its not running right too. Starts and runs fine. But the noise isn't there when it is cold. Here is a video of the bike running. What do you old timers think it might be.

BobbyR · « **Reply #121 on:** March 19, 2018, 07:22:39 AM »

This is called clutch rattle. It is common with these Hondas. People including Honda tried to engineer it out and no one was completely successful. It can be minimized with a carb synch, but it is always still there to some degree. The tell tale sign is when you pull the clutch handle in it goes away. Perfectly normal but scary when you are not aware of what it is.

Dads Toy · « **Reply #122 on:** March 19, 2018, 04:17:53 PM »

Quote from: BobbyR on March 19, 2018, 07:22:39 AM

This is called clutch rattle. It is common with these Hondas. People including Honda tried to engineer it out and no one was completely successful. It can be minimized with a carb synch, but it is always still there to some degree. The tell tale sign is when you pull the clutch handle in it goes away. Perfectly normal but scary when you are not aware of what it is.

Thanks for the input. Yes it is scary. Doesn't happen when it is started up cold. Just when it warms up good and after a long run. Do you think it would help if I replace the clutch and springs?

BobbyR · « **Reply #123 on:** March 19, 2018, 07:00:02 PM »

Quote from: Dads Toy on March 19, 2018, 04:17:53 PM

Quote from: BobbyR on March 19, 2018, 07:22:39 AM
This is called clutch rattle. It is common with these Hondas. People including Honda tried to engineer it out and no one was completely successful. It can be minimized with a carb synch, but it is always still there to some degree. The tell tale sign is when you pull the clutch handle in it goes away. Perfectly normal but scary when you are not aware of what it is.

Thanks for the input. Yes it is scary. Doesn't happen when it is started up cold. Just when it warms up good and after a long run. Do you think it would help if I replace the clutch and springs?

I think I would spend the time riding and improving rather than fix something that isn't broke.

Dads Toy · « **Reply #124 on:** March 19, 2018, 07:56:31 PM »

I agree with you on that BobbyR.
Speaking of fixing. I have another issue which is really needs fix cause this one has really piss the wife off.

I have the bike park in the garage. Its out of the way and in an area where I can work on it. Problem I have is there is gas leaking from a hose via the center stand. It is smelling up the garage and coming in the house. She is ready for me to park it at the curb. ???I have to put a ziplock bag over the hose. There is a small drip that come from it. I check the air box where the filter is but no sign of gas. There is this hard plastic plug like thing on the end of the hose. And it looks like it has a small hole in it. What is this hose used for and where is the gas coming from. Could it be my petcock valve is not shutting off and is leaking fuel into a chamber on the air box?
As much as I don't want to. I going to have to remove the carbs and air box again. Need to track down this hose and the source of the gas overflow. Plus this will give me chance to install the factory 120jets back into the carbs. The 108 I think are limiting the performance of the motor.
So I found this diagram. Number 14 is the hose that has gas coming out of it, which is connected to #17 which they say is a storage tank. If you follow the hoses up, what is #31 supposed to be connected too? Can I do away with all of these hoses and just cap them off?

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Author Topic: Spare Change- First Bike (Read 25429 times)