Boob-La....
I found the Yardman MTD manual! Thanks a million! I finally found a description of how all those safety switches work and was able to construct a wiring diagram.. Then I found a wiring diagram! At first the manual kept talking about a "OCR" module and that had me buffaloed as I hadn't seen anything like that. Then I discovered that my tractor has a "Standard Electrical System" (thank heavens) and everything fell into place after that. The only problem I have now (electrically, that is) are the headlights. They have no voltage to them. They should be on the same circuit as the fuel (after fire) solenoid. The wires are all enclosed in plastic wire loom, but I'll open that up and trace the wires down.
Thanks again for the manuals website, that is a great resource!
Roger
Hey Rog, ...gettin hard to keep up with 3 threads ya got goin, I guess you got all the info I sent (posted) ....some on this thread ,some on that one ,P.M.s etc. etc. ( LOL ) I guess the carb. & eng. are on the back burner for now, as far as the headlights....... I don't know anybody that uses them... UNLESS they rigged up a powerful set of aftermarket lights.
Now about that tranny....... I had no idea MTD made their own trannys, seems in one case there are more than a hundred different models using the same trans. among their different brands / models, MTD, WHITE, YARD MACHINES, YARD MAN, etc. etc. I have'nt found a parts cross-reference manual and when you check the aftermarket sites you can find many different trans numbers that supersede or replace other numbers....... some prices, are reasonable, and I think putting that kind of money ( over $200.00 ) into an older used machine for 1 part is going overboard, consider a used tranny first, but that's risky too. Are you sure the trans IS bad ??? if not.... it could be linkage or some other problem. I think you should check the service manual, (hope it was the right one ) make sure you determine the type of trans you have and if you think you can repair it yourself, looking in the parts manuals ( partstree.com) --(ereplacementparts.com) the parts , even the housings did'nt seem overly expensive, you may want to give yourself a "project" ( LOL ) Lastly ( for-now) Not tryin to "blow out your candle" but.. you MIGHT ... consider putting the engine on a different used mower... it might actually be cheaper if you can find a used cheap unit , AND what condition is your deck in ???... ( ut-oh ) another thread ???.. (LOL ) Hell Rog... I'm writing a book here..... I better get outa here , later buddy ....... Boobala ..:wink: