350 MCI Main Jet size

blaster3500 · 04-06-2020, 02:56 PM

Hi can anyone confirm the factory main jet size for a 350 MCI? I have read 85, 90, and 92. I am not at high altitudes. Thanks in advance!

trig123 · 04-07-2020, 12:01 PM

Mine has the 85 in it and runs great

blaster3500 · 04-07-2020, 01:47 PM

Quote:

Originally Posted by trig123

Mine has the 85 in it and runs great

Thank you! After digging through parts manuals it appears an 86 is the correct jet for my year. I bought the cart (2007 mpt1200) no running. I ended up realizing it had a pre mci 295. Long story short it now has a 350 mci. From prior online research, people were saying a 350 needed a 90. It was running way to rich with the 90. I put a 86 in it today and it seems to be running much better! Ill check the plugs and maybe step down to a 82 as it still seems to run better with no intake assembly. I still need to change the pilot from a 42 to 46 and hopefully it will be running perfect!

04-06-2020, 02:56 PM	#1
blaster3500 Not Yet Wild Join Date: Aug 2015 Posts: 62	350 MCI Main Jet size Hi can anyone confirm the factory main jet size for a 350 MCI? I have read 85, 90, and 92. I am not at high altitudes. Thanks in advance!
blaster3500 Not Yet Wild Join Date: Aug 2015 Posts: 62

04-07-2020, 12:01 PM	#2
trig123 Vintage tech Join Date: Sep 2009 Location: South Posts: 3,217	Re: 350 MCI Main Jet size Mine has the 85 in it and runs great

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