Author Topic: Maduncle's got himself a 500/4 (Read 19148 times)

greenjeans · « **Reply #25 on:** November 20, 2014, 02:36:40 PM »

Sweet 500 - just picked one up last weekend. What's that 4LS brake on ?

Retro Rocket · « **Reply #26 on:** November 20, 2014, 03:09:25 PM »

Quote from: maduncle on November 20, 2014, 02:54:26 AM

Good to hear from you again 'Gersh.

Seems I have options in USA for 500/4 4 into 1 pipes.

I can get them from Carpy, Lossa or Cycle-x.

Kinda like the Cycle-x ones with the reverse cone shorty muffler, but for now I will run the old 4 into 1's on the bike.

Throw Motogpwerks into that mix for a 4 into 1 {stainless} , lots of happy customers on this site, they make a trick swingarm as well...

maduncle · « **Reply #27 on:** November 21, 2014, 02:36:18 AM »

Quote from: greenjeans on November 20, 2014, 02:36:40 PM

Sweet 500 - just picked one up last weekend. What's that 4LS brake on ?

Good pick up.

That would be the Suzuki GT750 4LS front on my other project.

I am also building a CB450 'Race Replica' for the street with a worked engine, race braced frame and full race fairings.

Retro Rocket · « **Reply #28 on:** November 21, 2014, 03:48:53 AM »

Can't wait to see the racer Cliff...

dagersh · « **Reply #29 on:** November 21, 2014, 02:46:55 PM »

The Lossa's are really nice as well!

Happy Thanksgiving! Oh wait, that does not apply down there!

Gersh

maduncle · « **Reply #30 on:** November 27, 2014, 04:00:14 AM »

Happy thanks giving to you all in the US of A.

Meanwhile, I continue to interfere with my CB500F...

It's a dirty job, but I am glad it is done now. That black pipe wrap is obviously dyed, the water runs black when you soak it to use it.

Meanwhile - I was not the least bit surprised when my $50 seat cover went onto my rusty old broken foam seat base and I decided to bin it.

This will be the seat.

One skateboard seat coming up!

streak09 · « **Reply #31 on:** November 27, 2014, 09:53:12 AM »

The header wrap looks great! Did you use a seperate peice of wrap when the pipes come together? Or is it just a continuation of one of the pipes? Folllwing along, going great!

Greggo · « **Reply #32 on:** November 27, 2014, 11:17:36 AM »

Nice project! I loved my 500/4..wish I'd never sold it

I guess I should build one out of my pile of motors/frames/parts

maduncle · « **Reply #33 on:** November 27, 2014, 01:32:07 PM »

Quote from: streak09 on November 27, 2014, 09:53:12 AM

The header wrap looks great! Did you use a seperate peice of wrap when the pipes come together? Or is it just a continuation of one of the pipes? Folllwing along, going great!

Thanks man - I wrapped each outer from where they touch an inner, them wrapped each inner from the collector up.

streak09 · « **Reply #34 on:** November 27, 2014, 02:22:00 PM »

Ahh, I c. The transition looks very nice!

HondaMan · « **Reply #35 on:** November 27, 2014, 06:10:29 PM »

Quote from: maduncle on November 21, 2014, 02:36:18 AM

Quote from: greenjeans on November 20, 2014, 02:36:40 PM
Sweet 500 - just picked one up last weekend. What's that 4LS brake on ?

Good pick up.

That would be the Suzuki GT750 4LS front on my other project.

I am also building a CB450 'Race Replica' for the street with a worked engine, race braced frame and full race fairings.

Those GT750 4LS brakes are the original front-wheel-stand brakes!
I tested my 2-disc CB750K2 against one of those bikes one day, in a best-of-5 stops match. The Suzy was almost 50 lbs. heavier, yet it stopped in 3/4 to about 7/8 the distance of my 750, every time, from 50 MPH.
The only downsides we found with them were: the narrow shoes do wear pretty fast for everyday (i.e., commuter) use, and they do fade some on mountain roads being ridden as twisties at significant speed. The CB750 disc, even 1-up, never faded in the same 'match'.

maduncle · « **Reply #36 on:** November 28, 2014, 02:18:40 AM »

Yeah - if it were all about how to best stop the bike I would have kept to a disc front, but I want period correct look for this (as close as I can get to the Bob Hansen bike) so I have gone with the big 4LS.

Amazing thing was - it slipped in between the forks with a perfect snug fit. I thought I might have needed to shave down the crown on the brake plates but first test fit with the turned down axle was spot on.

Today I decided the CB500/4 is going to be my 'brambler' - which is sort of a brat/scrambler hybrid.

I might put a luggage rack behind the skateboard seat.

maduncle · « **Reply #37 on:** December 01, 2014, 02:23:20 AM »

Small steps.

I received a box of goodness from 4into1 today so I just had to call by my workshop on the way home and slip a few pieces on.

Switch blocks, grips and levers on the Renthal bars that I swapped over to on the weekend.

So whilst I was in the workshop I mounted up the front fender that I had trimmed down, sanded back and clear coated.

And I took home the ratty old side covers to commence customisation.

This does not involve paint - it involves a Dremel, several cut off discs, some drills ,some files, a keen eye and plenty of time.

streak09 · « **Reply #38 on:** December 01, 2014, 05:40:28 PM »

Quote from: maduncle on December 01, 2014, 02:23:20 AM

This does not involve paint - it involves a Dremel, several cut off discs, some drills ,some files, a keen eye and plenty of time.

Anxious to see what you do with this!

maduncle · « **Reply #39 on:** December 03, 2014, 03:22:20 AM »

Tonights work.

Ended up mounting the skateboard set pan using two bolts and two nutserts into the frame. The Honda NOS seat lock and latch arrived, but it does not fit with what I am doing, so it is now on eBay (if anyone needs a CB500/550 NOS seat lock and latch pin).

I sanded back both rims with a flap disc in the angle grinder and gave them a couple of coats of etch primer, black paint on Saturday.

And I trimmed back, sanded and clear coated the rear fender to match the front one.

All in all - a good couple of hours work.

dagersh · « **Reply #40 on:** December 04, 2014, 11:27:44 AM »

Looking good!

I like where you are going with the side covers.

Gersh

jvandyke · « **Reply #41 on:** December 04, 2014, 07:28:42 PM »

Good stuff, keep it coming, I'm watching closely as I prepare to do something to my '72 500 four as well.

maduncle · « **Reply #42 on:** December 06, 2014, 02:52:42 AM »

Another productive day in the workshop.

First up - gave the rims a couple of coats of satin black.

Then on to making up brackets to mount the old Bultaco headlamp I am using.

The brackets seem to work okay, the indicators I am using suit the shape of the headlamp and the hole in the headlamp will be filled with an Acewell gauge.

Then on to cutting out the side panels.

The cutting worked out fine, you can see how poor the surface is on these old things, I have some sanding to do. Then fresh satin black paint and silver flyscreen mesh on the insides.

Finally - a friend of mine and I were playing about with rear light and licence plate mounts for the shortened rear fender - and found that if you 'reverse and flip' a stock mount it can look good. I think a bit of tab trimming and this might work.

maduncle · « **Reply #43 on:** December 06, 2014, 02:57:11 AM »

Quick question - I have discovered that one of my spark plug leads had broken at some stage and is now held together with a screw and some tape. So, is it possible to fix broken leads that are fitted to CB500/4 coils or do I buy a complete new coil fitted with leads?

In which - where is the best place to get replacement CB500/4 coils and should I buy Dyna coils?

calj737 · « **Reply #44 on:** December 06, 2014, 04:15:44 AM »

If you can't find a decent deal on stock coils, Dyna 5.0 Ohms are well suited to your bike.

strynboen · « **Reply #45 on:** December 06, 2014, 10:04:21 AM »

.i like the old coils..they are perfekt 5 ohm for points..if you goes for elektronic..just get some 3 ohm..and get some ekstra power..it use also a bit ekstra on the battery.

.3 cm inside and 1 cm dovn..there are a veld/brass point to konnekt the vire..
press the new vire in and veld it on..and fill the hole vith epoxy..

Retro Rocket · « **Reply #46 on:** December 06, 2014, 03:32:02 PM »

Quote from: maduncle on December 06, 2014, 02:52:42 AM

Finally - a friend of mine and I were playing about with rear light and licence plate mounts for the shortened rear fender - and found that if you 'reverse and flip' a stock mount it can look good. I think a bit of tab trimming and this might work.

Interesting...

maduncle · « **Reply #47 on:** December 06, 2014, 08:44:02 PM »

I read the advice here: http://forums.sohc4.net/index.php?topic=5752.0 on putting new leads into old coils, so I will give that a go first.

maduncle · « **Reply #48 on:** December 07, 2014, 02:51:41 AM »

Quote from: strynboen on December 06, 2014, 10:04:21 AM

.i like the old coils..they are perfekt 5 ohm for points..if you goes for elektronic..just get some 3 ohm..and get some ekstra power..it use also a bit ekstra on the battery.

.3 cm inside and 1 cm dovn..there are a veld/brass point to konnekt the vire..
press the new vire in and veld it on..and fill the hole vith epoxy..

Can I solder it on using a soldering iron?

strynboen · « **Reply #49 on:** December 07, 2014, 07:36:59 AM »

yes it just my baaaaad english...solder IS the word

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Author Topic: Maduncle's got himself a 500/4 (Read 19148 times)