Carb Setting for 7000 ft and up.. What are yours/

RXMax

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Going to be running the stock airbox and 05 clutching. What are you running in your carbs?

I was looking in yamaha's 05 book for the elevation and temp, it puts it at 130 mains, 3/4 PS, needles in 3 (stock setting), stock 17.5 pilot for 6000+ ft and and 4-32 degrees

I have both red and silver carb springs.


What should I run???

Thanks!!!
 
For running at the higher elevations you need to address your carb float hight. I was at Revy a few years ago and my 03' RX1 would sputter and sometimes even quit at 6500ft and above. Scarry. The Mech. at the local yamaha dealer inspected my carbs and set the float hights at 13mm. Problem solved. Anything more than 13mm and you seem to get a overfueling situation.
 
Great! Thanks I am taking the sled to dealer for a final inspection this week. I will ask him to check those.
 
Everybody with an RX in the MTN must have a turbo or being using yamaha standard specs!
 
RXMax said:
Everybody with an RX in the MTN must have a turbo or being using yamaha standard specs!


Nope; I'm supercharged here ;)!. But when stock; yes I did use the stock settings but added holtzman engineering's red carb springs. Sled allways ran great.

Jim
 
jim was able to give a hand in getting mine running proper... i'm running an under the tunnel exhaust which seemed to lean out the sled so i'm running stock main's 135's and the needle is set at one from the top. float bowl heights are stock

clutching is a big deal, in order to keep your rpm's up you may want to lose weight in your primary? what size track? springs etc?

I'm running a 162x16x2.5 camo extreme, i had to grind my 05 weights in order to lose more weight, plus an ac silver primary spring and white yamaha secondary spring set at 90* plus a shockwave adjustable helix. i still need to increase the spring to 110*.

just a few adjustment and she'll rip...
 


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