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Question About MTD Lawn Mower 131-800H000
fuel system...

mower runs only with the choke fully on. It has a manual choke but the mower will not run unless choke is pulled all the way out closing the butterfly.

Asked by Eddie on 06/25/2010 2  Answers

ManualsOnline posted an answer 14 years, 3 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

jeff posted an answer 14 years, 3 months ago

4 I've seen two things that would cause this problem: first, check that the mounting bolts for the carb are tight and the gasket behind it is still intact. If the carb is loose, it will "suck" air around the manifold causing improper air fuel mixture, which is why you would have to run it with the choke fully engaged. Second, make sure that the carb and fuel lines haven't varnished. When gas gets really old, it turns into this gooey stuff that will clog up fuel lines, carb ports etc. etc. Hope this helps.
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