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re: Engine issues on my CJ7 258 i6. Any Carb experts? NEW UPDATE Page 3
Posted on 6/23/17 at 10:44 am to slacker130
Posted on 6/23/17 at 10:44 am to slacker130
You have insufficient fuel supply. At idle / revving with no load the bowl holds enough fuel in reserve to take up the slack from the fuel pump.
Bad fuel pump / clogged filter / clogged or malfunctioning needle or float in the carb.
Under load, you are depleting that supply and running out of fuel.
Or, you have plenty of fuel and a clean idle circuit, but a dirty high speed circuit.
You said you tried a electric pump, if that did not help I would bet it is internal carb issues.
Bad fuel pump / clogged filter / clogged or malfunctioning needle or float in the carb.
Under load, you are depleting that supply and running out of fuel.
Or, you have plenty of fuel and a clean idle circuit, but a dirty high speed circuit.
You said you tried a electric pump, if that did not help I would bet it is internal carb issues.
1
Posted on 6/23/17 at 12:04 pm to td1
quote:i have an electric pump on there now,( the mechanical one was going out. I have checked and am getting sufficient flow of fuel up to the carb.
You have insufficient fuel supply. At idle / revving with no load the bowl holds enough fuel in reserve to take up the slack from the fuel pump.
Bad fuel pump / clogged filter / clogged or malfunctioning needle or float in the carb.
Under load, you are depleting that supply and running out of fuel.
Or, you have plenty of fuel and a clean idle circuit, but a dirty high speed circuit.
You said you tried a electric pump, if that did not help I would bet it is internal carb issues.
So shoul di just clean the carb? rebuild this one(20$ kit, but i read it is not hard but not easy to put back together), find a MC 2100 at the junk yard( $20 + rebuild kit and mounting bracket 25+ 15) or just buy a rebuild on off ebay, 100+
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