Question about Briggs & Stratton Heavy Machinery
I own a Briggs and Stratton 8 hp horizontal shaft IC engine on my Troybilt Tomahawk chipper shredder and have a fuel flow to the float bowl problem. The engine is difficult to start. I typically run the float bowl dry at the end of the season. If I don't, the float bowl is typically empty after a few months anyway. At the homeowner level, I have worked on small engines before and somewhat familiar with small engines. However, I have never owned an engine that had a vacuum operated fuel pump. I assume that Briggs uses one when part of the fuel tank (based on the engine configuration) is below the float bowl and needs the pump to maintain fuel in the pump. I don't know if this is the case; just an observation. So I figured if I fill the tank, fuel will flow by gravity to fill the bowl and the engine will start. Not the case. I disconnected the fuel line between the pump and float bowl, opened the shutoff valve between the tank and pump and there was no gravity flow to the float bowl. Flow only occurs when the recoil is pulled and only in small spurts. It seems that it takes maybe 20 to30 pulls on the recoil before the engine starts (ie: the bowl is full). Is this typical? Or should there be free gravity flow to the bowl through the pump when the tank is full? Or is the pump faulty and should provide enough fuel to fill the bowl in maybe 3 pulls? I don't want to run out for a new pump if that isn't the problem.
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Posted on Jan 02, 2017
I have the both the manual and parts catalog for Troy-Built 8hp Tomahawk, can send them to you for the cost of coping and postage if you haven't found them yet.
Ron Bowman, PGYBCK@AOL.COM
Posted on May 02, 2009
SOURCE: I have a Troybilt tomahawk
You should be able to get the chipper's model number off the tag or label. With that model number you can go to the local small engine repair and parts shop to get the replacement pulley or you can look online at Troybilt and using the model number look up the drawings for the chipper and select the correct part and order it from them. Partstree.com and outdoordistribut
Posted on Sep 19, 2011
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