leadfoot33
New member
what the jets should be that would be great to. i run 2000ft to 6000ft roughly -5 to about -20 Degrees Celsius. right now i have 142.5 main jet and 52.5 pilot jet. with 2.5 turns on it. thanks again. its a weird kind of bog like when you just holding steady say at 4500 - 5000 and go wot it hesitates a bit. still to lean?
right now i am testing at 2000ft. i am just basing what it is doing off of what my polaris did, it did this and all we did was richen up the pilot jet and it went away. the bog/hesitaion gets better the longer the sled runs. should i turn the screw back to 2 turns (stock) when i got the sled it was set for 4500 ft roughly riding in revelstoke. it had 138 main jet 52.5 pilot jet and 1.5 turn on pilot screw. thanks
also i would like to find a break down on the carb so i know what all the screws do. thanks. sorry for long thread
right now i am testing at 2000ft. i am just basing what it is doing off of what my polaris did, it did this and all we did was richen up the pilot jet and it went away. the bog/hesitaion gets better the longer the sled runs. should i turn the screw back to 2 turns (stock) when i got the sled it was set for 4500 ft roughly riding in revelstoke. it had 138 main jet 52.5 pilot jet and 1.5 turn on pilot screw. thanks
also i would like to find a break down on the carb so i know what all the screws do. thanks. sorry for long thread
PISTOL PETE
New member
on my sled i have 137.5 mains on the 2 and 3 cylinder and on number 1 138 mains.the pilots are 45.these settings should be good for you if your all stock.
here is a website for your carb breakdown http://www.babbittsonline.com/pages/parts/viewbybrand/2/Yamaha.aspx
here is a website for your carb breakdown http://www.babbittsonline.com/pages/parts/viewbybrand/2/Yamaha.aspx
leadfoot33
New member
so you run about the same altitude? i do have slp pipes on my otherwise stock so a bit richer is needed
PISTOL PETE
New member
i run from 3 to 8000 feet.when i got one of my sleds it had that same jetting with power inc pipes and it ran great but like yours i had a hesitation a 5500rpm where i rode all the time after 5500rpm she went like a bat out of hell.but they say to go up three jet sizes to about 141 mains and you can keep your pilots the same when you put pipes on .did you do a sprak plug test?do you have any other mods?where do you live prince george?
leadfoot33
New member
its a small world after all lol