Mazda Pickup Trucks While Mazda may not be known for their trucks, they have always produced quality reliable trucks for both hauling cargo, or simply crusing.

'91 B2200 Carb, rough startup then smooth.

Old 04-16-2019, 12:57 PM
Junior Member
Thread Starter
Join Date: Apr 2019
Location: Washington
Posts: 2
Default '91 B2200 Carb, rough startup then smooth.

Good Morning,

Live on an island (WA state) but recently took my '91 B2200 (carburated) to the mainland and put her through her paces on the freeway. After an oil project (went from 15W-40 to 10W-30, then back again due to ticking) I've noticed that upon cold startup in the mornings that it starts REALLY rough but eventually smooths out as I throttle up to 1500-1750 rpm. After warmup it's fine, no warning lights. All fluids are holding fine. I give two full pedal pushes before cranking over.
Other symptoms on the initial startup seem that the engine is vibrating quite a bit until smoothing out, also get some "puff" sounds out of the exhaust. This all lasts for a few seconds.
Now I am not a carburetor expert but I suspect it has something to do with that, moisture build up in the fuel filter, or possibly the spark plugs?
Hard to figure out as she runs great afterwards.

Last edited by Snuffi12345; 04-16-2019 at 01:05 PM.
Related Topics
Thread Starter
Last Post
Mazda Protege
04-04-2015 08:45 PM
Mazda Pickup Trucks
06-17-2009 11:29 PM
08-13-2007 09:41 AM
Mazda Pickup Trucks
02-28-2007 03:02 AM
Mazda Protege
10-03-2005 09:25 PM

Thread Tools
Search this Thread
Quick Reply: '91 B2200 Carb, rough startup then smooth.

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.