rexman72 210 #1 Posted May 27, 2015 with my tractorand now it stalls on high throttle.There was a lot of crap in the filter so I replaced the filter.I also took the hose of the gas valve to see if there was junk in that and the gas flows like crazy.I also took the carb apart and cleaned it.It runs all day on low throttle so does anyone have anymore ideas.I haven't replaced the hoses. Share this post Link to post Share on other sites
rmaynard 14,950 #2 Posted May 27, 2015 You didn't mention what tractor or what engine, but here are some possible problems that occur in Kohlers:Fuel hose collapsing;Fuel pump weak;Float valve improperly adjusted;Main needle valve clogged;Gas cap vent clogged. Share this post Link to post Share on other sites
rexman72 210 #3 Posted May 27, 2015 hey bob thanks again with my pto a fewweeks ago.My tractor is a 31-17ke02 1986 417A.I checked the fuel lines throughout the tractor and didn't see anything.I loosened up the gas cap and tried to run it on high also.I took the carb apart and cleaned it.Like I said it runs on low all day long but once I go to high after a few minutes is stalls. Share this post Link to post Share on other sites
squonk 39,134 #4 Posted May 27, 2015 When you took the carb apart did you remove that main needle from the carb and clean it as well as the carb body passages? Share this post Link to post Share on other sites
skrusins 128 #5 Posted May 27, 2015 With today's gas and hot weather the gas is vaporizing. My solution to this problem is an electric fuel pumpwith a off and on switch. When it wants to stall turn on the switch it works every time for me. 2 Share this post Link to post Share on other sites
rexman72 210 #6 Posted May 27, 2015 I did remove the main needle and cleaned the main passages.When I look at the fuel filter there is a trickle of gas that is going through it.I have always had more gas running through it. Share this post Link to post Share on other sites
boovuc 1,090 #7 Posted May 28, 2015 Make sure the filter is on the proper way. Look for the arrow on the filter for the fuel flow direction. Share this post Link to post Share on other sites
Jake Kuhn 1,547 #8 Posted May 28, 2015 I have had a couple engines that would only idle and I could not make rev up which ended up being the points needed gapped again, might be another thing worth checking. Share this post Link to post Share on other sites
dennist 139 #9 Posted May 30, 2015 I'm with Bob.....possible fuel pump Share this post Link to post Share on other sites