Hello. I'm new here I hope this is the right spot to post this. I have an olddddd jlg 437 boom lift with a Wisconsin gas and propane engine. It has an electric choke mounted to the exhaust which I think is the reason the lift isn't running. It starts if you run the choke by hand and may run for awhile after it warms up but dies under a load. I can't seem to find the lift listed anywhere let alone the part. Any help would be appreciated.
-
Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!
jlg lift
- Thread starter dcarson
- Start date
willie59
Administrator
Welcome to HEF dcarson. :drinkup
I've never even seen a JLG 437. Does it run on Propane as well? Not a lot of detail in your post, but it sounds like you have to have the choke at least partially engaged for the engine to keep running, no? If so, it may be less of a problem with the choke and more of a problem with the carbureator, and you can probably pick up those parts from a Wisconsin engine parts supplier.
I've never even seen a JLG 437. Does it run on Propane as well? Not a lot of detail in your post, but it sounds like you have to have the choke at least partially engaged for the engine to keep running, no? If so, it may be less of a problem with the choke and more of a problem with the carbureator, and you can probably pick up those parts from a Wisconsin engine parts supplier.
This might help:
http://www.wiengines.com/public/static/wm/images/catalogs/accessory/chokes.pdf
Near as I can tell, the wire is supposed to get power when you're starting the engine and there's a solenoid in there that gives you full choke. When you release the starter button or key, you get partial choke, which opens more as the manifold heats up.
If it's dying under a load you may need to adjust and/or clean the carb main jet for gas. You shouldn't need the choke for propane?
http://www.wiengines.com/public/static/wm/images/catalogs/accessory/chokes.pdf
Near as I can tell, the wire is supposed to get power when you're starting the engine and there's a solenoid in there that gives you full choke. When you release the starter button or key, you get partial choke, which opens more as the manifold heats up.
If it's dying under a load you may need to adjust and/or clean the carb main jet for gas. You shouldn't need the choke for propane?