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Showing results for tags 'loss of power'.
Found 2 results
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I was wondering if I need a carburetor replacement. I t starts up ok but then it will back fire when I engage the mower belt or shift into second to go forward. It sputters and back fires and usually stops. I then wait a min or less and try to restart it and eventually it will start (5 min) maybe some more back firing and repeat the restart and slowly increase the RPM and then it might work for 30 min or more. Sometimes it backfires under load of tall grass and then I try to restart it. I have dumped the old fuel, replaced the fuel filter, spark plug, cleaned the air filter and put fresh gas into it. I use 100LL Aviation Fuel (no alcohol). I took it to Tractor Service and he cleaned out the fuel line and removed a couple black pieces of dirt in the carburetor. He charged me 2 hrs labor. I have changed the fuel filter, spark plug and cleaned the air filter. Do I need a new carburetor? The fuel filter is never more than 1/4 full. Could it be the fuel pump? It is a 1998 model 773348. It has 275 hrs on the engine. I would like to get it fixed so that the mower works reliably like it did last year. Thanks for your advise. Rodger
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Hi, hoping someone can help. I'm over in France trying to tidy up my place before the winter so do not have all the tools I have back at home. I have a separate problem with the gear box but have posted separately. Back in July when l last used the tractor it was loosing power when it got hot, and looking on the internet it appeared that the coil may be the problem. i have just returned to France and brought a new coil with me and replaced the old one. This coil has a separate ballast resistor attached. The tractor started first go and I started to cut the grass but with gearbox problems. The grass was long and thick in places and the tractor coped well, just heading the governor apply a bit more power in places. Them after about half an hour the engine lost power and there were some visible flames commons ftom the exhaust. can any one tell me what is happening here. I assume that it is heat related because the engine started first go and then ran well. But it must have been fully up to temperature long before this loss of power. Seeing flames from the exhaust indicates that the fuel is not being burnt in the cylinder, is this an ignition problem? Or are the valve not shutting properly an the fuel is just being pushed straight out of the engine? I'm sure it would look quite cool after dark, but with no power the grass will keep growing. Hop some one can help. Thanks, Andrew
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