Novak Conversions Jeep Wrangler YJ engine mounts

1987 4.2L Running Rough

AnotherUsername

New Member
Joined
Jul 17, 2025
Messages
2
Location
Burns, TN
Hello All,
I'm a new member here but have already been learning a lot from these forums. I have a new to me 87 Wrangler that runs, but runs rough. It is roughest at idle. I searched around for suggestions and I've looked for unplugged vacuum lines (not many the Nutter Bypass looks to have been done), set the timing advance at 8 degrees (it wasn't too far out from that), so now I'm looking at the carburetor. I believe it to be a reproduction Carter BBD (without the stepper motor - sans Nutter). Any ideas where to begin with the carburetor? I'm thinking if it's rough at idle, the idle circuit may be dirty. I thought I might pull out the idle jets, or venturi and clean that up. Or, is this carburetor just crap and I should get a Weber or Motorcraft 2150? I'm a fix try and fix it before I buy something new guy most of the time.

Thanks,
Chad
 
welcome to forum.before you deal with carburetor, i would check plugs for gap, wires, dist cap, rotor and fuel and air filter. i have never been fan of nutter bypass, so i going to pass on carburetor?good luck and keep us posted.
 
welcome to forum.before you deal with carburetor, i would check plugs for gap, wires, dist cap, rotor and fuel and air filter. i have never been fan of nutter bypass, so i going to pass on carburetor?good luck and keep us posted.

All good thoughts! I'll check those out. Thank you for the advice!
 
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Novak Conversions Jeep Wrangler YJ engine mounts