HONDA CM400 '81 -> 450 cafe racer (DUTCH)

Interesting build, based on an overlooked model...nice.

Torquey lump = Engine with strong pulling power, especially for it size/capacity.
 
I love the electrics on the new CM450RR :p

The computer controls all the lights (frequency, puls, alarm), handlebars push buttons (multiple options on one button) and more.



We hide it in de back-end of the seat.



For ignition we'll use a RFID. Also small pushbuttons.



And very small blinkers.



A 50 mm gauge.



And a very small battery.

 
NoRiders said:
Interesting build, based on an overlooked model...nice.

Torquey lump = Engine with strong pulling power, especially for it size/capacity.
Click to expand...

Thanks.. I didn't knew that! Most reactions on the original bike or when I started with the build were negative. Nice to hear something positive about the original CM400 :) I really like the way the original frame bents over the engine. Form behind it looks very small, and with two carbs and nice open filters on it I believe it will look great!
 
Nice looking project for sure man. Thanks for sharing it here.
 
I already posted a question on the engine part of this site. Maybe some who will read this project can help me with my carbs.

I want to upgrade my Keihin (vacuum) carbs and bought (maybe to quick) some Mikuni VM30's.



I read on different sites that the Mikuni VM30 was the best upgrade for a 400 cc Honda and the VM32 for 500cc. When I tried to fit them I saw the intake and Keihin carbs are 36 mm. Large for a 400cc Honda I believe, even for my 450cc with flow optimized.

Some people tell me to place the VM30 by making a cone-shape tube between the intake en carb. Others tell me to get some 36mm VM36 and make a custom exhaust. Maybe its in between. Who knows? ???

Does any of you guys know what tot do??
 
Hi, today I placed the engine to see how much the front forks would react. Also tried the original bend exhaust pipes and megaton dempers. I like the classic look with the pipes below. Although I'm thinking of custum pipes and gp-style dempers (vertical).

This is the classic look 8)



 
Still work in progress, but got some stuff done tot the top yoke.

This is original yoke:


After a lot of polishing:


 
Hi guys, we've been sketching up some next steps. During the build I began to see the beauty of stainless steel. And decided to make some changes. Instead of going all black, we're going to combine red, black and stainless steel. Some details are in gold, like the front brake, some screws on the carbs and the chain. The tank and back-end will be red. The carbs, the sides of the cilinder and carter won't be painted and the exhausts, headlight case (gone make one) and most of the screws will be stainless steel.

After doing research, reading forums, speaking with former eighties racers I've decided to compare the Mikuni 30 mm carbs with the original Keihin 36 mm. I've found a dutch carbs specialist, wo will fine-tune the carbs on our set-up: 400 engine and head (+ 7 CFM/+ compression), 450 cilinder. We're going to make a pipe going from 30 mm to 36 mm to optimize the flow using the Mikuni's. And compare them in a test environment. I'm curious what the effect of the Mikuni VM30 will be.

This is a sketch of the ideas.

 
NDG NL,

Where did you buy the battery? And can you send me the sizes, please? I'm from the netherlands. Keep on building, looks nice!

Groeten

Danny
 
Re: HONDA CM400 '81 -> 450 cafe racer (DUTCH)

Kick ass bike :) All you need now is a nice set of spoked wheels.

Is your mohave tank a replica?

Wysłane z tostera
 
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