1981 GS1000 Carb swap

[nitro3custom]

I have a set of 34mm mikuni flat slides that I bought for another project. How much of an improvement over the stock cv carbs would I see? I know the recomended is 36mm but I have thes on hand and with the new cams and 1085 piston kit It only makes sense to use them. Thoughts

[Nessism]

1981 GS1000 would be a shafty right? 8V engine? I'm not a hot rod guy but those carbs sound like a good match. I think 36's may be too much.

Edit: when you say "flat slides" are you referring to some stock type CV flatslides or performance type mechanical carbs?

[Billy Ricks]

Edit: when you say "flat slides" are you referring to some stock type CV flatslides or performance type mechanical carbs?

My thoughts too. If they are RS flatslides 34s should be fine.

[nitro3custom]

The carbs on our bikes have a round slide that lifts up these have flat ones and an accelerator pump. My camera is not working so I can't post a pic. right now. And I will be using them. I found a sight that did list them and they match up to The stock carbs. So now the next question. Does anybody know a jetting base line to start with? Obviously I will start as they are. They are as from the factory. But with the cams, web 118 grind and wiseco 1085 pistons. I think they might be lean. And That would not be good for a break in period. I will probably start the bike with the old carbs. I think they were a little rich anyway. I hope I don't start a heated debate here. It seems my questions do that.

[80GS1000]

Instant throttle response and a bit more power too.