the holy grail of carbs

The DFI on the GPz can be tweaked by way of the sensors and pressure regulation. Still, aside from maintenance ease and better warm up, it's not much improvement over carbs. MSI is not the only control option. It does seem to be the most cost effective. I'm planning to buy as soon as I sell the gs1000gt and find a deal on a set of sleeves or 73mm pistons and rings for the 1100. Will be less than $1200 for sure.

-Duck

Duck wrote:

The DFI on the GPz can be tweaked by way of the sensors and pressure regulation. Still, aside from maintenance ease and better warm up, it's not much improvement over carbs. MSI is not the only control option. It does seem to be the most cost effective. I'm planning to buy as soon as I sell the gs1000gt and find a deal on a set of sleeves or 73mm pistons and rings for the 1100. Will be less than $1200 for sure.

-Duck

thanks duck - could you elaborate on the modification of the system by way of the sensors...adjusting fuel pressure is a given...I did that while modding my f150 1/2 ton

Duck wrote:

IMO, compared to a good EFI system with ignition control, carbs are crap. Why? Because there is no way a set of carbs can provide the proper mix for all engine operating conditions.<br><br>Post edited by: Duck, at: 2006/09/27 00:22

Yeah, but who cares about all operating conditions? You only need idle and W O T!!!!!!!!!

yeah, Im for fuel injection, dont think that 35mm carbs would work on the 650 but throttle bodies do
Also much easier to tune it with the push of a button for idiots like me

firemun59 wrote:

the comment regarding fuel injection is great but you have to go for an aftermarket controller like those from 'megasquirt' if you are running any mods. The DFI system on the GPZ bikes were limited in that regard.

Still running the stock DFI on my bike. I haven't altered the sensors or the fuel pressure either.

It does have the holy grail of stock ECUs though:

I'm dragging this thread back from the dead! So, does anyone here run FCR carbs? Are they worth the cost over CR Specials? I think the Sanctuary Z1R runs these, but they are only available in 35mm from Sudco...

So what about a smaller build say for the 650-810 guys ??

My 700 runs bs 34s and I want to get away from vaccum carbs

There is always the RS34s what is wrong with the rs carbs???

About the same price ?? Who does the dyno say takes the cake??

Just like info !!! :side: :woohoo:

Dang. Can't find the pic someone posted here awhile ago of some black and gold limited edition japan only carbs from Yosh I think. They are the HG

I've seen a pic of those carbs, they're all black except for gold drain plugs and gold velocity stack bases. They are gorgeous :woohoo: :woohoo: I'd settle for the regular ones though!

actually, this is the true grail. Keihins plus another $500 will get u these:


thats right, yosh carbs. better than keihin.

Is that a heat shield????

How do we get the goods from the home land they get all the cool $hit I have seen see threw clutch cases and gas guadge fule lids and just some nice stough why dont they markit to us hell they send us every thing else??
:silly: Im not all there sorry for jacking the thred but has anyone done dino runs on any of these carb / throtle bodie options???

carbs make me feel funny lol :woohoo:

i dont have any actual dyno data, but common knowledge here is that yosh carbs are the best, second is keihin, third is CR. Its agreed that yosh carbs are the best, but there are many many people who prefer CR over Keihin because although Keihin carbs make more power, the CR carbs are smoother and have a longer life. The difference in power between CR and Keihin is not very noticeable.

In my opinion, the reason they dont sell such parts in the U.S. is because there is no market for it. A set of Yoshimura carbs sell for almost $2,000 USD over here. There are a lot of Japanese people who are dumb enough to drop that kind of money without thinking, so those carbs are quite popular here. However, in the U.S., im sure only a few people would spend that kind money, right? The difference in power from the CR carbs and Yosh carbs is not that significant, not enough that most people could justify spending twice as much.