Question about Troy Bilt Tb320bv Spring Assist Blower/Vac
Engine will not go to high speed .fuel oil mix blows out into the case,I checked spark arrestor,muffler,exaust ports. This blower vac has not been used verry much.
If the mix is blowing out the muffler than it is flooded either due to improperly adjusted carb, stiff diaghrams in the carb or weak spark. Weak spark could be a bad plug, failing ignition module, or spark ouit of time ( sheared flywheel key).
Bad fuel will also cause this symptom.
Posted on Oct 26, 2012
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Posted on Jan 02, 2017
Great explanation, You have a blocked exaust. Either the spark arrestor is blocked, or the muffler is plugged, or you have a plugged exaust port.
The best way to figue this out is to take the muffler off and shine a flashlight into the exaust port and look for carbon build up. You should see the piston go up and down, the whole port should be open. If it is blocked, clean it out with a scrapper. Make sure the piston is in the up position before you start scrapping( to keep the carbon out of the cylinder), Then wash the carbon out with spray carburetor cleaner. Then start the engine and it should run like normal ( loud but normal). The next thing is to clean the spark arestor screen, Hold it with pliers or a vise and use a torch to burn the carbon off. Once the screen gets red hot it will cook the carbon right off.
Hope this helps
Posted on Nov 14, 2010
Testimonial: "Thanks for your reply.Removed muffler, every part was clean.Ran motor without muffler ,it ran pretty well at high speed but still had mist blowing ou"
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