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Author Topic: Tire inner tube, valve stem with conical washer + 2 nuts - How to fit the rim?  (Read 9329 times)

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Offline PeWe

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Re: Tire inner tube, valve stem with conical washer + 2 nuts - How to fit the rim?
« Reply #25 on: April 04, 2018, 09:39:44 PM »
Yes, the price of the tube add some. The spoked wheels look very nice though and an important part of the bike.
I have so far always replaced tube with the tire. Maybe possible to change tube every 2:nd rear tire?  If it will survive the removal of the old tire stucked into the rim ;)
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline crazypj

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Re: Tire inner tube, valve stem with conical washer + 2 nuts - How to fit the rim?
« Reply #26 on: April 05, 2018, 11:15:56 AM »
I replace tubes when they need it. If you use talc  (baby powder) inside tyre and on tube it's possible to get several uses. The tyre and tube will move around, sometimes independently of each other during normal use so tube will actually 'wear out'. If any of the mould marks are worn or damaged, tube is 'done for' as it will still 'move around' but could get too tin to hold air
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Offline PeWe

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Re: Tire inner tube, valve stem with conical washer + 2 nuts - How to fit the rim?
« Reply #27 on: April 05, 2018, 12:10:32 PM »
Good to know. I remember some tires had talc inside when new.
A tube inside a rear tire that worn out at around 3000 miles must be ready for one more round.
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline jgger

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Re: Tire inner tube, valve stem with conical washer + 2 nuts - How to fit the rim?
« Reply #28 on: April 05, 2018, 11:01:39 PM »
You can also air up the tube off the rim and the weak/worn spots will bulge out.
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Offline PeWe

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Re: Tire inner tube, valve stem with conical washer + 2 nuts - How to fit the rim?
« Reply #29 on: April 06, 2018, 02:11:02 AM »
Another good thing to look for when reusing the tube.
Check the shape and if it bubbles in water, it can have been pinched when bending the tire side off.

We can continue this thread about which talc is the best? ;) Baby powder or Babe powder?

More interesting stuff about talcum powder (White powder sold on the street might be an alternative?)
https://draxe.com/talcum-powder/
https://www.drugwatch.com/talcum-powder/
https://www.cancer.org/cancer/cancer-causes/talcum-powder-and-cancer.html
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline Yamahawk

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Re: Tire inner tube, valve stem with conical washer + 2 nuts - How to fit the rim?
« Reply #30 on: April 06, 2018, 02:20:29 AM »
Quote from: PeWe on April 06, 2018, 02:11:02 AM
Another good thing to look for when reusing the tube.
Check the shape and if it bubbles in water, it can have been pinched when bending the tire side off.

We can continue this thread about which talc is the best? ;) Baby powder or Babe powder?

More interesting stuff about talcum powder (White powder sold on the street might be an alternative?)
https://draxe.com/talcum-powder/
https://www.drugwatch.com/talcum-powder/
https://www.cancer.org/cancer/cancer-causes/talcum-powder-and-cancer.html

GoldBond Medicated talc, in case your rims get a little rash...
Charlie
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1971 CB750K1 (newest bike), 1996 Royal Enfield 500 Bullet (therapy bike), 1981 Yamaha XV920RH, 2006 Kawasaki Concours (retirement bike), 1975 Yamaha RD350 (race bike), 1989 Honda VTR250 Interceptor (race bike), 1986 Kawasaki EX250 Ninja (race bike in progress), 1985 Honda Elite CH250, 1973 Yamaha GT1 80cc, 1974 Yamaha DT360 project bike.

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All Things work together for good, for those who love God and are the Called according to His purpose.
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will you trust Him...?

Offline PeWe

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Re: Tire inner tube, valve stem with conical washer + 2 nuts - How to fit the rim?
« Reply #31 on: April 06, 2018, 02:45:30 AM »
http://www.goldbond.com/blog/product/medicated-baby-powder/
That's corn starch.
Potato starch might be another one?

How it will react with moisture can be the guide. I have used corn starch and potato starch in the kitchen to make sauce and stews thicker.
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline crazypj

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Re: Tire inner tube, valve stem with conical washer + 2 nuts - How to fit the rim?
« Reply #32 on: April 06, 2018, 09:24:03 AM »
This is going into the realm of 'Pythonesque'  ;D  8)
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I fake being smart pretty good
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Offline PeWe

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Re: Tire inner tube, valve stem with conical washer + 2 nuts - How to fit the rim?
« Reply #33 on: April 06, 2018, 10:25:35 AM »
Pythonesque means really fun as the English lads could make it with their flying circus....right?  :)
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CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline crazypj

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Re: Tire inner tube, valve stem with conical washer + 2 nuts - How to fit the rim?
« Reply #34 on: April 06, 2018, 10:46:35 AM »
Yep. I'm always quite surprised that 'America' finds 1970's British humor 'current'
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I fake being smart pretty good
'you can take my word for it or argue until you find out I'm right'
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