Red Devil 5 #1 Posted October 2, 2016 Ok I am swapping a motor out of my 312-8 (motor ran fine tractor in rough shape) into a 310-8 (blown motor has sat for 5 years) and have the motor swapped and hooked up gas line is good brand new battery, starter is good, problem is when I turn the key now nothing happens but if I cross solenoid it rolls right over am I right to think it's either key switch or solenoid? Share this post Link to post Share on other sites
Shynon 7,482 #2 Posted October 2, 2016 I would say its the solenoid or a safety switch 1 Share this post Link to post Share on other sites
Red Devil 5 #3 Posted October 2, 2016 Ok because mechanically everything swaps from the 312 I'll pull the one off it and switch them out and check the safety switches, can't remember where all switches are so I'll do some hunting tonight hopefully Share this post Link to post Share on other sites
wallfish 18,187 #4 Posted October 2, 2016 To easily eliminate the solenoid as the issue, jump the large terminal connected to the + battery to the small post. The solenoid should activate. You can probably find a 310 wire diagram in the files section to help trace wires and ID the safety switches. Clutch, PTO, seat. 3 Share this post Link to post Share on other sites
Don1977 605 #5 Posted October 2, 2016 You may have a wiring problem also as the 312 and the 310 have different charging systems. You can find the wiring diagrams for each in Wheel Horse Manuals section on this forum. Share this post Link to post Share on other sites
pfrederi 18,703 #6 Posted October 2, 2016 Be careful here. Over the years these models came with battery Ignition and some with magneto. You can fry expensive pieces if miss wired or using wrong igniton switch. Also as Don1977 points out there are different charging systems which would require different wiring. What are the spec numbers of the two motors??? 1 Share this post Link to post Share on other sites
Red Devil 5 #7 Posted October 2, 2016 (edited) All the parts seem interchangeable and all the connectors matched up wire color wise down to the fly wheel including magneto in top, carb, every nut screw and wire you name it honestly only difference I can find between the two is the two gauges on the lower dash at work now but I'll definetly pop the side panels of maybe I'll end up swapping the whole wiring dash set up? Edited October 2, 2016 by Red Devil Share this post Link to post Share on other sites
