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Joined: Feb 13, 2015 10:04:47 GMT -5
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Post by bill on Feb 13, 2015 10:16:06 GMT -5
I started my buggy witch has the honda helix cn250 engine in it yesterday it was very cold out side about 3 digrees it started up just fine but later I noticed white smoke or steam coming from the heater comp any ideas is this ok will it kill my machine if I continue to use it can I fix it or should I just get a new carb
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Post by earlwb on Feb 13, 2015 11:57:27 GMT -5
You may be OK. Since it was real cold, there may have been some moisture on the unit. Thus it caused some water vapor to form and go off into the air. Inside a automatic enrichener unit there is a heater coil that gets red hot. As it heats up it causes a accordion like bellows to expand pushing a plunger down into the carb to cut off the extra rich fuel flow. Inside the bellows like affair there is a wax like substance, it sort of melts and expands as it gets hot.
Anyway, you may have seen the moisture turning to steam on the unit.
But if there was a lot of smoke and it had a acrid smell, then something may have gone bad with it. The Honda dealer ought to be able to sell you a new heater unit. They probably have them on Ebay toio.
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Post by alleyoop on Feb 13, 2015 14:35:11 GMT -5
Look at the picture I labeled what we think you are saying was smoking. If so that is the ENRICHER, what it does is when the motor is cold it feeds extra fuel to the motor to help it start because motors need a little more fuel for starting when cold.  If it still smokes after that or you find that since the initial smoking happened the motor is not running as good as it was before or it is harder to start it may be that it ENRICHER is bad. But you do NOT need a new Carburetor you can just replace the ENRICHER it is held on to the carb with two screws and it plugs into the harness. To see if it is working it is very easy to test it out: Unscrew the two screws holding it and lay it on its side someplace where you can see it. Then Cover the hole with your thumb and start the motor and hold your thumb over the hole for at least 3-4 minutes. As your holding the thumb over the hole watch the ENRICHER and see if the Cylinder EXTENDS out about 1/4 of an inch in about 3-4 minutes if it does it is GOOD. Look at the two pictures: A. WHEN YOU first take it off cold it should look like PIC #1(the cylinder is RETRACTED). In that position it allows extra fuel for cold starts. B. After 3-4 minutes with the motor running it should look like PIC #2(the cylinder is EXTENDED). In that position it has shut off the extra fuel and will stay that way until you shut the motor off and it cools down then it will again RETRACT and be ready for the next COLD start. Alleyoop PIC# 1: HOW THE CYLINDER SHOULD LOOK LIKE (RETRACTED) before motor is started COLD.  PIC# 2: HOW THE CYLINDER SHOULD LOOK LIKE (EXTENDED) after 3-4 minutes IDLING.  |
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..BAD TO THE BONE..