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Carb help, 81' 250t

  • Thread starter Thread starter seabee
  • Start date Start date
S

seabee

Guest
I notice when i pull the plugs, one cylinder is carboned up and rich, the other cylinder is lean, no carbon what so ever. My 81' 32mm Mikuni carbs. Would this be a needle jet problem? If so, how would i go about adjusting it? Carbs have been thoroughly cleaned, but ive never touched the needle jets. As far as performance, i am running K&N filters, but completely stock exhaust. Any help would be greatly appreciated!

Thanks
 
petcock

petcock

The vac line is drawing off the right carb, its also the right cyl. thats running
rich.
The petcock would flood the left carb. so i wound up putting an on-off valve
between the petcock and carbs
I did open the petcock and nothing seems to be wrong with it.
I will check out the rest of the carbs asap
 
Did you rejet the carbs when switching to the pod air filters? If not, you should as the jetting is drastically different now.
 
Hi,

seabee said:
The vac line is drawing off the right carb, its also the right cyl. thats running
rich.
Click to expand...

It is common for a failing petcock to leak gas back down the vacuum hose into the cylinder. Are there gas droplets/vapor in the vacuum line? If you suck on the vacuum line like a straw do you taste gas?


Thank you for your indulgence,

BassCliff
 
my 250 was running bs30ss carbs on it, didnt think the 32's came in till you hit 450cc?
 
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