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tk11b40 wrote:

Had a lotta help on this project, Stoppee, 341, the "Wizard". A fella that does the Baja 1000 on an XR suggested using a dirt bike rear brake to reduce weight.

Genious..those dam dirt bikers..

So we ordered a brand new CR450R rear brake caliper, and master cylinder.

The master cylinder has its own resevoir for fluid, so its a cleaner set-up, no tube and plastic bucket hanging out there.

The stuff looks like jewelry. I had the rotor machined to the diameter, and thickness of the stock CR rotor, and presto..about a third the wieght!!

Can u tell me what the bolt spaceing distance is ,on the mounting bolts for the master cyl?(center to center, )

Distance center to center mounting holes for CR450
Master Cylinder=
49mm.

And hey Stoppee....

Proud pictures..??

Ahh how about a burnout photo? Airborne ??

Crashing sucks.

Thanks. That is a great idea.

cherrymetal wrote:

Do you know what the RAL number for the silver you had it powder coated is? It looks really nice!

cherrymetal,

I called Advanced Powder Coating today, they looked up the RAL number.... Prepare to copy:

Cardinal (brand)
T 358-GR539 (the silver)
Cardinal
CL01 (the clear topcoat)

hope that does you some good. I was hesitant to do silver, but they showed me a grill guard they were doing for a Pick-up truck, it looks so nice. Not loud or flashy, but very nice.

Today I was looking for an easy project, so removed the carbs from the rack, and drilled lightiner holes, I love the old school look. Then I polished it somewhat.

What carbs do u have there. it looks like u could cut a lot of metal out between the carbs. Aftermarket cabs dont have any of that extra metal. Just rails that tie the carbs together.

Hmmmm,

Thought about that, but remebered racers experimenting with heat sheilds in the early 80's, so thinking the carbs would be better sheilded from the heat this way.

What do you think?

Thats a good point but i dont think they use full plates anymore do they? My smoothbores and RS carbs run on rails.
I guess the carbs are going to pick up heat as the plate heats up anyways, maybe more as it gets hot?
Its up to u but since u like the hole look, i cant see any big issue.
Chances are good that u will want bigger carbs latter anyways.

Have you ridden it yet? How is your gearing? What is your gearing?

Ridden it...

I git on it and make motor noises, I imagine it running down the corkscrew at Laguna, Eddie Lawson, Freddie Spencer pressuring me for the big mistake so they can take the lead....then my wife opens the door to the garage, with that "you are pitiful" look all over her face.

Oh yea I've ridden it..

Actually I started it a few times, then had to take it all apart again, so i could get the frame powder coated.

Ok The carb plate, goes back to surgery, Think I'll bore a few more holes in the face.

Makes me think though, I had an ELR with aftermarket Mikuni 33mm smoothbores, that thing was a pig in traffic, I am wonderring if the rails, and all the heat had something to do with it.

Smoothbores, with the rails are made for racing, bike is always moving, so air runs through.

It would be real interesting to know exactly why they use an aluminum Die Cast plate in fron of the carbs, instead of rails. After all the rails would be cheaper to manufacture.

I'm gonna drill some 7/8" holes through the front.

Thanks for the input!!

So no you have not ridden it:P I like that front sprocket cover. Wish I knew what was behind it:side:

tk11b40
Makes me think though, I had an ELR with aftermarket Mikuni 33mm smoothbores, that thing was a pig in traffic, I am wonderring if the rails, and all the heat had something to do with it.

It may just have been the vm33's. they are a little big for a 1000 cc motor even a 1100 will struggle with them. the large throat provides a week vacuum signal at low rpm's, there for they can be finicky if u are too quick opening the throttle while the rpm's are down.
I have a set of them. i run rs34's now. the rs34's feel like the vm33's if i unhook the accelerator pump. They go lean if u whack the throttle down low in the rpm's. Then they take off like a bat out of hell. If u could find a pump for the vm’s they would be awesome.
As for drilling the carb plates, they used to drill the cyl fins to improve cooling ..
I drilled my fins too.

Carburator quwstion..

What do all the prefix's stand for VM, RS etc?

RS= radial slide, i think. VM ?

Very Macho?

Hey, by the way, "heat shields" are made from much lighter stuff. I'm going by a buddies place tomorrow and I'll try to remember to take my camera and ask him what his shield is made of, but it's nost plate metal. The Yosh ones were made of that white opaque plastic-stuff (durlen?...surlen?...I dunno), anyway, it was pretty 'bendy' (is that a word?) but it had been molded to fit up and over the back of the head and then again down under the carbs.

-KR

Hey bad Kaw I would really appreciate that.

A photo or two would give me an idea!!

Thanks!!

This weekend I put the front end on for the last time, been struggling with how to get a decent steering stop put on the bike. Now it's on. soon a finished product will be born.

We brazed a stop on the neck prior to powder coating, put the front end on and bam, a miscalculation. Lots of trial and error with this stuff. Not like building a Harley, or a small block Chevy engine. Hey you know if you pay extra for shipping most UPS guys can build that Small Block chevy while driving the brown truck!!

So I needed a little bit less lock to lock travel or the forks would be slammin me brand new tank which was EXPENSIVE.

I just started some recreational machining and before long had carved out a urethane part which serves as both a pad and the adapter the bike needed.

So if you are struggling with the same thing, maybe this will give you an idea. I get lots of ideas looking at the work on this forum, so share and share alike!!

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