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Messages - Johnwebley

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3136
CB500/550 / Re: twin disc conversion
« on: September 07, 2013, 12:35:31 AM »
starting to get all the bits together,

cleaning and checking


 ordered new master cylinder ,and various seal ,

servicing caliper,

HINT !!
a broken piston ring is perfect for cleaning the seal groove in the caliper !!!!!

more posts as I go along



3137
CB500/550 / Re: CB550 K3 tyres
« on: September 05, 2013, 08:16:58 PM »
I use 90/90 X 19 f,and 100/90 X18 R

 in Avon Roadrider,they are fantastic,great grip dry and wet,

 run 29 psi F ,and 36 psi rear,

make my 500 feel like a 250 !!!

got about 9,000 miles for the front,and 3,000 for the rear,

for that reason,I am fitting Dunlop Streetsmart ,3.25 X 19 F ,and 4.00 X 18 rear.

main difference is the greater diameter overall,the Avon caused the speedo to read about 15% slow

will let you know how the Dunlops feel

3138
CB500/550 / Re: twin disc conversion
« on: September 02, 2013, 07:19:13 PM »
ok,update coming,

forks arrived,they must have been for a 550k,so the slider was the same length as my 500.,
think the internals are different,but I am expecting to just fit on my existing stanchion,and use same springs and internals,

disc ordered,

and caliper,bracket hoses,etc

I intend to use a double length banjo to join the brake pipes,so I don't need to worry  about brakelight switch,

hopefully the new bolts,and speedo drive mods will go OK

3139
CB500/550 / Re: 500 K cafe racer conversion - build thread
« on: September 01, 2013, 01:07:21 PM »
you are working hard Ewan,

 I suggest you get it on the road,run it for a while,get used to the feel.bed the tyres and brakes in ,
then explore the handling,

I guess you have some great bike roads around you,

go and have some fun

3140
Misc / Open / Re: ride-out/meeting
« on: August 30, 2013, 09:55:11 PM »
hope Hairygit is progressing well,

are any of you up for the Sparkford  day out???

http://www.japfest.net/

here is the link,

I may be entering my Honda,the one in my profile pic,also riding it there,

if you enter,you get in free,!!! LOL


 the Honda and I have an entry,No 174,so as long as its not snowing,or pouring,I should be down ,

hope to meet some of you

3141
CB500/550 / Re: twin disc conversion
« on: August 29, 2013, 07:50:19 PM »
thanks for your helpful advice,Ewan and Oddjob

I have got the caliper and bracket,pipes and mastercylinder,(ex CB550) ,looks far better condition,and cheaper,

Oddjob,if you have a disc,please let me know,

we can work a deal , ;D

deciding on which forks to buy,the scruffy,or the bright blue ??

thanks

John

3142
CB500/550 / Re: twin disc conversion
« on: August 29, 2013, 07:53:16 AM »
thanks Ewan,

 I saw the Master cylinder,but decided I wanted the older round resevior type,like

http://www.davidsilverspares.co.uk/GL1000K2-GOLDWING-1977/part_126548/

the caliper and bracket  are

http://www.ebay.co.uk/itm/Honda-cb-550-four-brake-caliper-1977-/271228605178

the forks look a better bethttp://www.ebay.co.uk/itm/Honda-cb-550-four-forks-1977-/271228589227

http://www.ebay.co.uk/itm/Honda-CB500-CB-500-Four-4-Brake-Disk-/350845499406


and this disc

thanks for your help



3143
CB500/550 / Re: twin disc conversion
« on: August 28, 2013, 11:22:22 PM »
looking at parts


 disc  £35

 caliper and bracket £90

master cylinder £35 + brake light switch £15

hose etc £40


forks £90
HT bolts FOC  I hope

plus odds and sods,new seals ,bolts etc

that should be about that,

also new set of tyres about £160

jezzzzz

september is going to be expensive,and petrol at £1,37.9 a litre !!

I shall let you know what happens







3144
Humour / Re: my Next Project
« on: August 28, 2013, 09:17:04 PM »
looks perfect,use a 750 Hondamatic motor,

it would be great for a quick shop around Asda !!

3145
CB500/550 / Re: twin disc conversion
« on: August 26, 2013, 07:32:33 PM »
In that case you will need the slider from a 550 or a PAIR of forks from a 550 (internals vary so fitting just one complete fork is not advisable) plus if you look at the other thread on twin discs I linked a word document with a How To.

Thanks Bryanj,  I downloaded your instructions,and am sourcing parts,are 550 fork tubes the same Diameter as the 500,and will they
fit my original yokes?can I just swap the 550 sliders onto my forklegs and internals?
thanks for your help,

all of you

back to feebay to explore more ;D



3146
CB500/550 / Re: twin disc conversion
« on: August 26, 2013, 12:04:40 PM »
hopefuly my pain and agony and oddjob's and bryan's comments in my post at http://www.sohc.co.uk/index.php?topic=5571.0  are helpiing .. hopefully not confusing or putting you off have a go yersel John  ???


 thank you Ewan,and all of the posters,it seems that i need a 550 front forks first,then lots of bits -)))) ;D

I will explore the availability and cost,

thanks all

3147
CB500/550 / Re: twin disc conversion
« on: August 24, 2013, 09:12:57 PM »
John, helps if you say what bike mate


the bike in my profile pic,

 1974  M reg K1 Cb500-4

thanks
John

3148
CB500/550 / twin disc conversion
« on: August 23, 2013, 11:29:27 PM »
hi all,

 forgive me,but this is pick your expertise time,

I have a standard single disc setup,
I would like to go to twin discs,

can you advise me on the pitfalls,
I guess I shall need a new m/cylinder,caliper,caliper mount,2 bolts,disc,6 extra long disc bolts,hoses,flexi and pipe,
what about new rh fork leg? speedo drive?

are these available,source of parts?


thanks all,

John

3149
Misc / Open / Re: ride-out/meeting
« on: August 23, 2013, 08:25:34 PM »
hope Hairygit is progressing well,

are any of you up for the Sparkford  day out???

http://www.japfest.net/

here is the link,

I may be entering my Honda,the one in my profile pic,also riding it there,

if you enter,you get in free,!!! LOL

3150
Misc / Open / Favorite tyre fitments
« on: August 20, 2013, 11:33:49 PM »
hi all,

as you can see from my profile pic,I have a well used 500,

for the past 6-8yrs I have used Avon Roadrider 90/90 x 19 f,and 100/90 x 18 rear,

as both need changing,
I am going for the new Dunlop Streetsmart 3.25 x 19 F,and 4.00 x18 R,

both sets run at 29psi F,and 36 psi R,

the Avons make the bike feel light and nimble,like a little 250,gives me confidence to touch the footrest and stand,hopefully the
new Dunlops will be as good,and even better,my rear is lasting up to 3k miles,the front about 8k, :) :)

what tyres do you prefer??

this is aimed mainly at the owners that ride the bike,rather than just polish and  show them,

all comments welcome

John

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