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Brigs & Stratton 18.5 hp
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Posted by flahill Flolrida (My Page) on Sat, Nov 21, 09 at 6:19
| My Troy Bilt Bronco 18.5 HP Briggs & Stratton will start on choke but stall immediately on fast or slow. Fuel is clean; filter is good; should I adjust screws on carburetor? Ideas? Thanks. |
Follow-Up Postings:
RE: Brigs & Stratton 18.5 hp
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| Check for loose carb & manifolds mounting bolts, remove carb float bowl and check for water/crude. Walt Conner |
RE: Brigs & Stratton 18.5 hp
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And, do not mess with carb screws-they are probably not the problem, unless--you have gotten the machine recently, from another home grown mechanic, who couldn't get it to run, either!
Rustyj |
RE: Brigs & Stratton 18.5 hp
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| Is this a single or twin cyclinder? |
RE: Brigs & Stratton 18.5 hp
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| I assume this is a 31" Briggs OHV. Have you dropped the bowl of the carb to look for debris/ water? |
RE: Brigs & Stratton 18.5 hp
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| I have a Sears lawn tractor with a different B&S engine (31C707) but mine had the problem of the choke lever on the carb getting stuck after a few years. So check yours, see if it "opens" when you move the choke lever down to mid-way or less. I installed a 25 cent spring on mine to ensure this happens; an Internet search showed that a stuck choke on these is a common issue (with other fixes like whittling the shaft narrower, but I like my way). |
RE: Brigs & Stratton 18.5 hp
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| Thanks for the advice. I will try your recommendations this weekend and follow up. Tractor only has about 40 hours. |
RE: Brigs & Stratton 18.5 hp
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| Is it still under warranty? if so call sears. With that few hours unless it has set for long time I don't see it being a carb problem. I would look in the gas tank see if maybe You got some bad gas (full of water as suggested above) or you let it set out in the rain? |
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