700 triple and 600 twin jetting?

[mq32hunter]

hey guys im new to the site and just getting back into sleds. i have a 97 vmax 600 twin and a 98 mountain max 700 triple. i live in eastern SD. i need to rejet and adjust the clutches on both these sleds for my elevation. they are jetted and clutched for a higher elevation. the previous owner gave me the jets i need. ive never worked on sleds. i have been around motorcycles my whole life so i have some wrenching exp on 2 strokes. that bein said. on the 700 do i have to pull the carbs off to get at the main jets or can i loosen the boots and turn the carbs? as far as the clutch i have no idea....same questions with the 600.... thanks in advance for any help

 

[MURDER YAMAHA]

Yes, but you will need to pull the fuel lines.
Much easier to just get them out of the sled, go through them thouroughly.
Only takes me maybe 5 min max to get them out.
10mm wrench and a Phillips screwdriver.
Are you sure you know what jets are supposed to go back in?
And are the main jets the only changes you need?

 

[MURDER YAMAHA]

1997 600 SX should have 151.3 mains, 45 pilot
1998 MM 700 should have 142.5 mains, 45 pilots (calls for a fatter main, but too rich in my opinion)

 

[mq32hunter]

Thanks guys. I bought them from a local guy. He gave me the jets to run around here (eastern sd), lower elevations. They both are jetted for higher elevations(western sd, black hills). I will dig into the carbs and see what I'm dealing g with

 

[mq32hunter]

To add to that the elevation here at home is 1400' and the elevation in the black hills is 3500'. Tha is again

 

[MURDER YAMAHA]

Then stock jetting and clutching will be what you want to run.

 

[mq32hunter]

Then stock jetting and clutching will be what you want to run.

For the lower elevation I assume. But fatter for the hills?

 

[MURDER YAMAHA]

Elevation has less air, so less fuel is required.