Suggestions on RS Mikunis???

[KnuckleBuster]

I'm thinking about upgrading from my stock carbs with Dyno Jet kits to the RS Mikunis. My questions are: what size carbs do I want (judging by Sudco's website, I'd say 36mm) and what do I need to do to mate them to the head? They are obviously going to be larger than the stock carbs, so what do I do for boots? Does the head need to be machined?

Thanks,
Jay

[GSJimbo]

they will fit perfectly, might want to change the petcock and throttle, all other will fit prefect...........

[Cassius086]

Yeah, you'll need dual throttle cable assembly.

[KnuckleBuster]

Already got the push/pull throttle setup. I've been toying with the idea of swapping out the petcock for a Pingel anyway. The RS carbs fit right into the stock boots? 36mm is the way to go? Reason I ask about the size is that I met a guy with 34mm flat sides on a GS1000 over the weekend and just thought it an odd difference. Plus, they would be 10mm larger than stock....

Thanks,
Jay

[don_gibb6512]

"toying with the idea of swapping out the petcock for a Pingel anyway"

They flow A LOT more gas than stock and the RS carbs will suck it down quick too so your gas mileage will suffer, fyi. I'm getting about 32mpg, albeit a FUN 32mpg. :-D I hated the stock petcock. You'll be impressed with the quality of the Pingel.

"The RS carbs fit right into the stock boots?"

Yes.

"36mm is the way to go?"

I went with 34mm and now wish I would have gone with the 36mm. MORE POWER BABY !!!! I think you sacrifice smooth all around street performance with the 36mm.

"Reason I ask about the size is that I met a guy with 34mm flat sides on a GS1000"

That's my current set up. 1980 GS1000G with 34mm RS Flatslides, V&H pipe and V&H pods. Stock engine, only suspension and ignition mods other than that. It runs pretty well. I'm going to throw the carbs on an '80 GS1100E and see how that works out. May yet switch out to the 36mm's. I'd like to hear from someone who's actually running the 36mm's and also had the 34mm's to hear first hand what the difference was.

[Big_T_111]

RS carbs

36mm RS carbs work really well on the GS. Easy to tune and jet changes are a snap without removing the carb bowls. Mine runs really well and it was a noticable pickup in power. I also have some 39 Keihin FCR carbs on the 1150 and they are hands down the best performance carb. The slides have rollers on them and throttle pull feels almost as easy as stock carbs. They come with velocity stacks so you have to buy the adapters to run filters. If you are mainly going to run around on the street use a set of 97-00 Bandit 1200 36mm CV carbs, Cheaper and will pickup your performance just as good as the RS carbs on slightly modded engines. Get a factory Pro jet kit and use the smallest main jet with the pod filters. When we dynoed the 1100 the stock Bandit CV carbs supported about 145 RWHP. The 36mm RS carbs were needed after that. The CV carbs became the stopper. Below that they were almost the same. But the bike was eaiser on the street to ride with the CV carbs.