ontarioyamaha
New member
I am a long time Yamaha rider. I just sold my 94 and 95 Yamaha Vmax 600 machines. I cleaned the carbs every year without an issue. Most years a basic cleaning but other years I would tear it right down.
This year I picked up 2 600 tripple machines. 2002 vmax and a 2000 sxr. I cleaned the carbs. The sled ran well before and I only cleaned the carbs as a precaution. I tore them right down and used a combination of compressed air and carb cleaner to clean them. I have never had a triple but everything seemed fine. I put it back together last night and she will not run. It seems like the idle circuit might be plugged. I started the sled. It ran for about 10 seconds the rpm went up to about 3000 and then it died. I started it again and without the choke on it revs high: about 3000. I figure it must be running lean. When I turn on the choke it runs like a 3 cylinder for a few moment s but return to running like crap. When I hit the gas I cannot get it to spool up.
I hate the thoughts of taking it all apart again but sound like it is inevitable.
Will only one plugged idle circuit in one carb exhibit this type of symptom?
Any advice on what I should try first?
One other note of interest; when I removed the air screws they were all adjusted to 2 full turns apart from one. It was turned out just one turn. I set it the same as the other ones; 2 turns. What failures would I notice if the air screw was set wrong?
This year I picked up 2 600 tripple machines. 2002 vmax and a 2000 sxr. I cleaned the carbs. The sled ran well before and I only cleaned the carbs as a precaution. I tore them right down and used a combination of compressed air and carb cleaner to clean them. I have never had a triple but everything seemed fine. I put it back together last night and she will not run. It seems like the idle circuit might be plugged. I started the sled. It ran for about 10 seconds the rpm went up to about 3000 and then it died. I started it again and without the choke on it revs high: about 3000. I figure it must be running lean. When I turn on the choke it runs like a 3 cylinder for a few moment s but return to running like crap. When I hit the gas I cannot get it to spool up.
I hate the thoughts of taking it all apart again but sound like it is inevitable.
Will only one plugged idle circuit in one carb exhibit this type of symptom?
Any advice on what I should try first?
One other note of interest; when I removed the air screws they were all adjusted to 2 full turns apart from one. It was turned out just one turn. I set it the same as the other ones; 2 turns. What failures would I notice if the air screw was set wrong?
do you have your throttle cable too tight?
super1c
Super Moderator
I hate to tell ya but it sounds like a tear down again. First time i cleaned my new to me sled carbs it took twice and i thought i cleaned them good the first time. The high rev sounds like a leak. Make sure your carb boots sealed good, very hard to tell unless you dismantel the air box and put them on the carbs that way. By air screws do you mean fuel screws? Screws on outside of carb on bottom by float? If so the stock specs are in tech pages from home page. Under snowmobile then stock snowmobile specs. They need to be all the same. Also want to check carb sync, their is a how to on that also somewhere in their. CCC
gild
New member
pilot screws
did you loose the tiny washer and O ring for the pilot screws
did you loose the tiny washer and O ring for the pilot screws
ontarioyamaha
New member
Thank you so much!!!! checked everything and it turned out to be the throttle cable. I unhooked it and it ran awesome!!!!
Thanks guys you saved me a lot of stress
Rodney
Port perry
Thanks guys you saved me a lot of stress
Rodney
Port perry