I have a John Deere mower that used to have a single cylinder Briggs & Stratton 18.5HP. The engine on it went due to overheating from mouse nesting. I found a 21HP Briggs & Stratton Intek Twin Cylinder as a replacement. The replacement engine model and type is: 407577-0284-E1. Mounting, pulleys, electrical, hood size, exhaust, and fuel hookups are all manageable with the conversion.
The one issue I'm having is the throttle/choke cable. The mower itself has a single lever that operates both the throttle and choke simultaneously. However, the new engine has an independent choke and throttle configuration on the front of the engine. One way to fix this issue is to install an aftermarket choke lever under the steering wheel. This is not preferable as the pre-existing throttle lever is designed with the choke engagement in the most-forward position.
Any thoughts to correct this issue? It seems the two options would be to replace the carburetor assembly with one that a single cable can operate a choke and throttle together. The second being a replacement throttle lever with two cables coming off it, with one operating the choke when the lever is pushed forward all the way.
The one issue I'm having is the throttle/choke cable. The mower itself has a single lever that operates both the throttle and choke simultaneously. However, the new engine has an independent choke and throttle configuration on the front of the engine. One way to fix this issue is to install an aftermarket choke lever under the steering wheel. This is not preferable as the pre-existing throttle lever is designed with the choke engagement in the most-forward position.
Any thoughts to correct this issue? It seems the two options would be to replace the carburetor assembly with one that a single cable can operate a choke and throttle together. The second being a replacement throttle lever with two cables coming off it, with one operating the choke when the lever is pushed forward all the way.