schrader valves for front forks
-
tall-mike
- Financial

- Posts: 87
- Joined: Sat Aug 04, 2012 2:52 pm
- What Bike or Bikes Do You Own?: 1989 yamaha xt 600 enduro
- Previously Owned Bikes: 650 yamaha
kawasaki 500 triple
suzuki 800
yamaha 80cc
yamaha 55cc
mini-bike 2.5 hp - Location: California
schrader valves for front forks
Hello xt-land; I've ordered new progressive springs for my front forks and looking at the air valves, they should be replaced also. To equalize air pressure to both tubes , could you use one valve connecting to both forks? and does anybody know the current size of the Schrader valves currently installed? 1989 43f xt 600. thanks Mike
-
ActionManMelb
- Founding Member

- Posts: 1052
- Joined: Thu Mar 31, 2011 7:50 am
- Location: Melbourne, Australia
Re: schrader valves for front forks
They use a std. tire valve insert. About 19mm long.
BTW only use a hand pump. Max pressure 10psi. (0.75 bar)
Yes, but why complicate your life??To equalize air pressure to both tubes , could you use one valve connecting to both forks?
BTW only use a hand pump. Max pressure 10psi. (0.75 bar)
"Don't worry," he said, "things could be worse ........."
So I stopped worrying and lo and behold, things did get worse!
So I stopped worrying and lo and behold, things did get worse!
- Mezo
- Dashingly Handsome

- Posts: 6108
- Joined: Wed Mar 23, 2011 11:01 am
- What Bike or Bikes Do You Own?: Kymco agility 125 ;-)
- Previously Owned Bikes: Honda SS50, Suzuki TS50, Honda CB100, Honda CR125RZ, Yamaha YZ125, Kawasaki KX250, Suzuki TL1000S, Ducati 900SS, Ducati 900SL, a few Tenere`s.
- Location: Queensland Australia
- Contact:
Re: schrader valves for front forks
Agree on that, from memory they used to link them on the old crossers back in the day.ActionManMelb wrote:Yes, but why complicate your life??
Mezo.
"A wise man makes his own decisions, an ignorant man follows public opinion"
-
tall-mike
- Financial

- Posts: 87
- Joined: Sat Aug 04, 2012 2:52 pm
- What Bike or Bikes Do You Own?: 1989 yamaha xt 600 enduro
- Previously Owned Bikes: 650 yamaha
kawasaki 500 triple
suzuki 800
yamaha 80cc
yamaha 55cc
mini-bike 2.5 hp - Location: California
Re: schrader valves for front forks
ok...maybe over-thinking the air pressure per tube thing, I'll just replace the inserts with a bicycle tube or car tire Schrader valve. I'll figure it out once I start the replacement of the fork springs...But I do like the Idea of one air valve, giving even air pressure to both fork tubes...Mike
-
tall-mike
- Financial

- Posts: 87
- Joined: Sat Aug 04, 2012 2:52 pm
- What Bike or Bikes Do You Own?: 1989 yamaha xt 600 enduro
- Previously Owned Bikes: 650 yamaha
kawasaki 500 triple
suzuki 800
yamaha 80cc
yamaha 55cc
mini-bike 2.5 hp - Location: California
Re: schrader valves for front forks
well much to do about nothing I guess, The new progressive springs I received in the mail states ( Air Pressure: After installing the new springs we recommend Zero air pressure.) Works for me. Thanks Mike
- Jimmie
- On the ladder

- Posts: 106
- Joined: Mon Nov 21, 2011 10:20 am
- What Bike or Bikes Do You Own?: '85 Yamaha XT600Z
'93 Suzuki GSX600F - Location: Copenhagen, Denmark.
Re: schrader valves for front forks
I tried messing around a bit with air pressure after installing progressive fork springs. Eventually came to the conclusion that zero pressure suited them best (manual said nothing about pressure suggestions). Even with a few hg of pressure they became too stiff. The valves then worked fine for releasing pressure from the forks rather than filling.
-
tall-mike
- Financial

- Posts: 87
- Joined: Sat Aug 04, 2012 2:52 pm
- What Bike or Bikes Do You Own?: 1989 yamaha xt 600 enduro
- Previously Owned Bikes: 650 yamaha
kawasaki 500 triple
suzuki 800
yamaha 80cc
yamaha 55cc
mini-bike 2.5 hp - Location: California
Re: schrader valves for front forks
These new Progressive springs are definitely a good upgrade. They are longer and made of thicker steel. they fit perfectly and no spacer was needed due to the extra length of the spring. Mike 
-
steveloomis
- Financial

- Posts: 230
- Joined: Sat Aug 10, 2013 5:03 pm
- What Bike or Bikes Do You Own?: 81 RD350LC w/84 RZ engine
85 RZ350
84 XT600
86 XT600 - Previously Owned Bikes: Honda 50's, 90's, Yamaha Twin 100, 68 DT1, '73 DT-3, 73 RD350, '77 DT250
- Location: Oklahoma, USA
Re: schrader valves for front forks
I am curious about your progressive springs, are they Progressive Brand or just progressive wound? A name and part number would be nice to have.
Thanks,
Steve
Thanks,
Steve
-
tall-mike
- Financial

- Posts: 87
- Joined: Sat Aug 04, 2012 2:52 pm
- What Bike or Bikes Do You Own?: 1989 yamaha xt 600 enduro
- Previously Owned Bikes: 650 yamaha
kawasaki 500 triple
suzuki 800
yamaha 80cc
yamaha 55cc
mini-bike 2.5 hp - Location: California
Re: schrader valves for front forks
Hey Steve , The name was Progressive....part no 11-1141 and fits 84 - 89 xt 600 and priced around 90 bucks. regards mike
-
manco
Re: schrader valves for front forks
Just a quick note on part numbers, the 1990+ XT600e uses Progressive spring part number 11-1506.