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Lost_Cause

B12 Help

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Lost_Cause
Ok need some help with my B12 carb problems. B-12 is very hard starting needs the carb "Tweeked" anyone have the spec's to get me close? Is it that hard to rebuild these carbs?? I think a good cleaning might do the trick

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Kent
Screw both idle and main jet in until they seat (don't force them), then back them out 1-1/4 to 1-1/2 turns. This should start. Then, tweak them accordinging to the instructions linked below. Haven't rebuilt one yet, but soon... so I can't help there.[A href='http://www.simpletractors.com/operation/300401/page_4.htm']http://www.simpletractors.com/operation/300401/page_4.htm[/a]

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MPH
Main thing I think of on rebuilding one of these carbs is to remove the nozzle tube before you take the carb apart. Be sure to use a good fitting screw driver for this, its easy to make one by grinding the flare off the end so it fits inside the hole of the needle valve..MPH

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Marion_Kerr
I would also replace the condenser and points, located on side of block just beneath carburetor under the little cover that comes off with two screws. I would also install a new spark plug. If none of the above has been done for last 5 years, please do yourself a favor. This is a cheap investment. Then, put the carb back on and tweak it as advised by Kent. Usually, the LAST thing that needs attention is the carburetor if you have winterized system properly for storage, replaced air filter(as needed) and unit has not been left sitting outside in the weather for extented periods.

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