Author Topic: CB500 upper front brake hose routing  (Read 1186 times)

Offline SPR

  • SOHC Pro
  • Posts: 516
  • 1972 500/4 K1
    • View Profile
CB500 upper front brake hose routing
« on: September 17, 2022, 09:09:04 AM »
Morning

I've looked on the PDI instructions but still am confused on the routing for the upper brake hose ..... also if I've got the longer hose fitted for higher bars ? as the original isn't available

Any pointers appreciated

Thanks

Simon

[ Guests cannot view attachments ]

Offline McCabe-Thiele (Ted)

  • Grogu
  • *
  • Posts: 6310
    • View Profile
Re: CB500 upper front brake hose routing
« Reply #1 on: September 17, 2022, 09:17:14 AM »
Hi Simon,
Do you know the length of your hose - it certainly looks long - might be the angle but is the hose touching/rubbing  the chrome fork ear?

Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline SPR

  • SOHC Pro
  • Posts: 516
  • 1972 500/4 K1
    • View Profile
Re: CB500 upper front brake hose routing
« Reply #2 on: September 17, 2022, 09:23:12 AM »
Hi Simon,
Do you know the length of your hose - it certainly looks long - might be the angle but is the hose touching/rubbing  the chrome fork ear?

It's hard to get an exact measure but from fitting to fitting approximately 35cm

It does touch the chrome ear

Simon

Offline McCabe-Thiele (Ted)

  • Grogu
  • *
  • Posts: 6310
    • View Profile
Re: CB500 upper front brake hose routing
« Reply #3 on: September 17, 2022, 10:59:00 AM »
Hi Simon,
Do you know the length of your hose - it certainly looks long - might be the angle but is the hose touching/rubbing  the chrome fork ear?

It's hard to get an exact measure but from fitting to fitting approximately 35cm

It does touch the chrome ear

Simon

I see what you mean about measuring - mine is about 25 cm - my pipe sits in the middle of the gap between the headlamp & the fork ear.

PS My clutch cable route seem odd it pass through the right side of the headlamp/fork ear gap under the left side of the petrol tank crossing over to the left side throught a frame gap next to the coils.
.
.
.
.

.500 pipe route by Macabe Thiele, on Flickr


.
.
front bars view by Macabe Thiele, on Flickr
« Last Edit: September 17, 2022, 11:07:43 AM by McCabe-Thiele (Ted) »
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline SPR

  • SOHC Pro
  • Posts: 516
  • 1972 500/4 K1
    • View Profile
Re: CB500 upper front brake hose routing
« Reply #4 on: September 17, 2022, 11:27:54 AM »
Mine definately seems longer than your hose ...... your throttle cables seem long ?

My clutch cable goes as pic - under RHS of tank (as sat on it) then under the frame and down in between the carb manifold

[ Guests cannot view attachments ]

Offline McCabe-Thiele (Ted)

  • Grogu
  • *
  • Posts: 6310
    • View Profile
Re: CB500 upper front brake hose routing
« Reply #5 on: September 17, 2022, 11:54:33 AM »
Sounds like my clutch cable route is positioned as it should be.. The throttle cables are pattern ones already on the bike. The guide clip under the tank is absent so they do not loop down enough I suspect.
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline Oddjob

  • SOHC Jedi
  • Posts: 4296
    • View Profile
Re: CB500 upper front brake hose routing
« Reply #6 on: September 17, 2022, 01:11:23 PM »
The switch wiring on a 500 is supposed to run through the bars and be none visible Ted. Have the bars got the slots on the underside to accommodate this?
Kids in a the back seat cause accidents.
Accidents in the back seat cause kids.

Offline McCabe-Thiele (Ted)

  • Grogu
  • *
  • Posts: 6310
    • View Profile
Re: CB500 upper front brake hose routing
« Reply #7 on: September 17, 2022, 01:55:31 PM »
The switch wiring on a 500 is supposed to run through the bars and be none visible Ted. Have the bars got the slots on the underside to accommodate this?

Nah no slots - not sure what bars Bryan fitted it with tbh.
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline Bryanj

  • Grogu
  • *
  • Posts: 10816
    • View Profile
Re: CB500 upper front brake hose routing
« Reply #8 on: September 17, 2022, 03:42:21 PM »
The first ones that came out of the box to be honest, the switches had already had cut outs done for wires outside bars before i got them but as they worked they got used im afraid

Offline Bryanj

  • Grogu
  • *
  • Posts: 10816
    • View Profile
Re: CB500 upper front brake hose routing
« Reply #9 on: September 17, 2022, 03:44:55 PM »
That hose is way too long, i think i have enough of the stainless hose left to make one up for you, price depends on length

Offline SPR

  • SOHC Pro
  • Posts: 516
  • 1972 500/4 K1
    • View Profile
Re: CB500 upper front brake hose routing
« Reply #10 on: September 17, 2022, 08:26:12 PM »
That hose is way too long, i think i have enough of the stainless hose left to make one up for you, price depends on length

Bryan

I'll have to try and find a difinitive length - does your stainless have a cover over it to look OE ?

Also the PDI doc seems to suggest the route is through the oblong hole behind the clocks ? or is it routed correctly and just over length - if the latter I may be able to get a measurement near enough using Ted's findings

Simon


Offline Oddjob

  • SOHC Jedi
  • Posts: 4296
    • View Profile
Re: CB500 upper front brake hose routing
« Reply #11 on: September 17, 2022, 08:37:43 PM »
It's supposed to go between the clocks and in the hole in the clocks bracket.
Kids in a the back seat cause accidents.
Accidents in the back seat cause kids.

Offline McCabe-Thiele (Ted)

  • Grogu
  • *
  • Posts: 6310
    • View Profile
Re: CB500 upper front brake hose routing
« Reply #12 on: September 17, 2022, 08:40:07 PM »
Don't rely on my measurement Simon as I used a steel rule.
Somewhere the correct length for the correct bars will be known.
My bars are I think from a 550.
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline SPR

  • SOHC Pro
  • Posts: 516
  • 1972 500/4 K1
    • View Profile
Re: CB500 upper front brake hose routing
« Reply #13 on: September 17, 2022, 08:45:26 PM »
It's supposed to go between the clocks and in the hole in the clocks bracket.

I thought so - thanks

Offline McCabe-Thiele (Ted)

  • Grogu
  • *
  • Posts: 6310
    • View Profile
Re: CB500 upper front brake hose routing
« Reply #14 on: September 17, 2022, 09:42:47 PM »
Might be the change of route will loose some of the excess hose - worth a try just cost a  bit of brake fluid.
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

 

SimplePortal 2.3.5 © 2008-2012, SimplePortal