cub wont idle

[krauss4]

got a 4 mill cub 35mm carbs idles when i first start it up but wont idle at all after its hot whats up

[pr0blumz]

Are the carbs in sync? How many turns out are the air mixture screws?

[locogato11283]

we need more info. pipes, intakes, air filters, reeds, main jet, pilot jet, air screw?!

[J-Madd]

None of mine idle for shit. If they do idle when I set the the carbs up, I change it (at the carbs) so that they don't....... and sometimes I'll leave the cable adjuster on the throttle housing loose enough that I can idle it up after it gets warm, then back down if its cold.. I always had that same problem, that it'll idle to the moon when cold, then won't idle for shit when warmed up. If i mess with the air screws to try to fix the problem, then the weather (air density) changes - the idle changes too. This is on alky, though - and drag race only.

[krauss4]

i have small bore shears inframes 35mm keihns boss intake clean up port job 4 degrees tming advance

[tiffnaub]

i have small bore shears inframes 35mm keihns boss intake clean up port job 4 degrees tming advance

mine has tuned and it will only idle for 5 seconds or less but you really dont want it to idle for to long stay on the pipe it a 2 stroke

[krauss4]

its just annoying it wants to die if im not on the gas after its hot