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Old 01-19-2015, 01:59 AM
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Join Date: Dec 2014
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Exclamation Straight answers?? ( carbs again!)

Hello guys/girls I know this question has arised numerous times and I've searched numerous threads I just need a straight forward answer please if you guys can help. I own a 1989 yj 4.2 with the dreaded carter carb. Looking to upgrade to a weber carb. What all am I going to need to complete the job other than the carb? It is a daily driver. I've rebuilt the carb twice and would rather retire the original carter rather than replace it with a new carter and hopefully have better idle. Only reason I posted here is because you cj guys/girls are the carter carb pros!! Lol Thank you for any help!

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Old 01-19-2015, 07:34 PM   #2
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I run a weber on my 86 CJ7. I also run a fuel pressure regulater, weber says to run it at 2.5 on road and 1.5 offroad.

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Old 01-20-2015, 03:56 PM   #3

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I second what RubiconRich says in regards to the Weber set up. I ran the Weber on my 89 YJ when I had the 4.2 in it and I never could seem to get it running like I wanted. It had a lot of hard miles on it so it could have been the motor was the problem more than the carb. I also ran a Motorcraft 2150 on a 84 CJ 4.2 for a while and it was easy to tune and rebuilt.
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Old 01-20-2015, 07:42 PM
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Ok thank you guys I'll check into both carbs ( motorcraft and weber) something has to give or else.. I might have to drive the 92 fox body lol
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