CR Carbs

[Garyola]

 While the bike was apart I took a few shots of the carbs. These things work very well.
They were too wide by 10mm when I got them. Lots of new parts had to be made to make them fit but it was well worth it.
This has woken up this bike. I pulls very hard (for a 400)and power is instant.
Please excuse the paint on the frame. The poor thing has been down and worked over more than a Church Street hooker.

[Banditmax]

Can you detail what you had to change gary? And where you got em from.

[Garyola]

Can you detail what you had to change gary? And where you got em from.

I'll try.

To start with the carbs were dual feed. We had to eliminate the second feed inlet and move one to the centre between carbs 2 and 3. That gave us the 10mm we needed to make them fit right up. All the rails had to be made from scratch as did the choke rod and a new main rod had to be draw out on a CAD and machined. The old one was now too long. My pal Tim did all the work in his shop. Once they were made to fit, the frame was in the way of the #4 carb so we had to grind a small piece out of the frame and braced it back up. They fit perfect. The push/pull throttle cable fit right up but I had to move the kill switch assembly to the left clip on which would be a problem for a street bike but not this machine because it has not lights or indicators. It's nice to work on a machine that is this minimal.

G

PS: the carbs came from Japan.

[gsxr400 racer]

your still running the vacum fuel valve 

[Garyola]

your still running the vacum fuel valve 

LOL! Yes because I just haven't come across an alternative yet and I just wanted to get it going.

I'll get on it.

G

[digitaldan]

Nice, how much more power and response do you reckon ?

[Garyola]

Nice, how much more power and response do you reckon ?

From what I feel before and after. The power is about a 10%+ and very noticeable because the delivery is instant. When you get on the throttle it moves. There is no lag like the stock carbs and I mean none. You have to be smooth on the throttle out of corners. You should be with any bike but these carbs took me few laps to catch on. Where some bikes where pulling away from me coming out of corners, now I'm on them. I'm speaking of bikes in my racing class like fzr400s.

G

[interfuse]

Nice work. My frame is nearly as skanky and it's not a race bike...

[gsxr400 racer]

Just a FYI for those that dont know the ones on mine are FCR's and 33mm 1 mm bigger than gary's and mine eats up a close ratio trans with the long first and second it feels like stock bandit first and second.

[gsxr400 racer]

http://www.okshon.com/v.cgi?YYurl=http://page11.auctions.yahoo.co.jp/jp/auction/n60988413

$225.00

[Banditmax]

Hmm how tempting 35mm carbs look.

[gsxr400 racer]

Hmm how tempting 35mm carbs look.

Im looking but can not see

[Banditmax]

Damn i meant to say the look tempting. Haven't found any to buy yet. But i have 3 months of holiday from uni.....

[gsxr400 racer]

I would not be scared to mount some 35's on my bike