I just bought a 2008 and its pretty weak and had some pretty good hesitation. I adjusted the idle and throttle cable and it helped alot. Has 630 hours so wondering if i need to adjust the valves. Zero clue how to do that though.
I will have another video soon to explain in more detail, but setting valve lash is just removing the valve covers and using a feeler gage between the rocker arm and the top of the valve stem. I wanted to keep the governor on the mule, so I just loosened it so that it doesn't slow down the engine. The two screws on top control air to each cylinder and the one on the side controls the throttle butterfly valve. Hope this helps and I will have a video to explain maybe tomorrow. Thanks!
You have to set one cylinder to TDC on the compression stroke in order to lower the lifters to the base circle height of the camshaft. Then set the lash for both valves and repeat the process for the next cylinder. This motor is not picky about which cylinder you start on, so pick one, adjust, and go to the next one. Thanks for watching!
I've been chasing down a problem on my 2007. It wouldn't idle to save its life. Start up needed a lot of help with the gas pedal/choke. It doesn't really want to idle long enough to get it in gear. You have to play with the gas pedal or fiddle with thee choke to get in gear, then quickly give it gas if you want to drive. I rebuilt the carburetor and it would idle fine. After a while it went back to the same thing as before. Looking at doing the fuel filter next. Could the valves be an issue? My grandpa owned it before me and he's only ever dome fluid maintenance.
I would suspect that the valves are partially to blame. However, if it is getting better with a rebuilt carburetor, than I would look at a clogged idle screw and pilot jet. If you can, put a new fuel filter on it and it should keep the carb from clogging. Also, are you using a fuel stabilizer? Most pump gas these days is watered down and full of ethanol which will go stale in a matter of weeks. I use Lucas stabilizer and it has been a game changer. I left my dad's tractor parked for a few months with stabilized fuel, and it fired right up. Let me know if it helps and thanks for watching!
I just bought a 2008 and its pretty weak and had some pretty good hesitation. I adjusted the idle and throttle cable and it helped alot. Has 630 hours so wondering if i need to adjust the valves. Zero clue how to do that though.
Great video . Let me with a few questions how to remove governor ? Set the valve lash ? And adjust the idle screws. Looking forward to the next one
I will have another video soon to explain in more detail, but setting valve lash is just removing the valve covers and using a feeler gage between the rocker arm and the top of the valve stem.
I wanted to keep the governor on the mule, so I just loosened it so that it doesn't slow down the engine.
The two screws on top control air to each cylinder and the one on the side controls the throttle butterfly valve.
Hope this helps and I will have a video to explain maybe tomorrow.
Thanks!
What did you gap the valves to?
Isn't the high range top speed pretty low on these? Like 25mph or something?
I think it's 25 exactly, without the governor, it will do about 33.
Did you set each cylinder to top dead center before adjusting the valves ?
You have to set one cylinder to TDC on the compression stroke in order to lower the lifters to the base circle height of the camshaft. Then set the lash for both valves and repeat the process for the next cylinder. This motor is not picky about which cylinder you start on, so pick one, adjust, and go to the next one.
Thanks for watching!
I've been chasing down a problem on my 2007. It wouldn't idle to save its life. Start up needed a lot of help with the gas pedal/choke. It doesn't really want to idle long enough to get it in gear. You have to play with the gas pedal or fiddle with thee choke to get in gear, then quickly give it gas if you want to drive. I rebuilt the carburetor and it would idle fine. After a while it went back to the same thing as before. Looking at doing the fuel filter next. Could the valves be an issue? My grandpa owned it before me and he's only ever dome fluid maintenance.
I would suspect that the valves are partially to blame. However, if it is getting better with a rebuilt carburetor, than I would look at a clogged idle screw and pilot jet. If you can, put a new fuel filter on it and it should keep the carb from clogging. Also, are you using a fuel stabilizer? Most pump gas these days is watered down and full of ethanol which will go stale in a matter of weeks. I use Lucas stabilizer and it has been a game changer. I left my dad's tractor parked for a few months with stabilized fuel, and it fired right up.
Let me know if it helps and thanks for watching!
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