Hi there! I just completed a mikuni conversion on my 72 400 jd. you might check your choke adjustment. Make sure you have it set
right or you will be running rich all the time.

thanks Harley I had forgotten about that website now its saved in my bookmarks!

The model is TC440A-C202

Any downloads of this engine specs & rebuild data?

ok, I will look into not splitting the case.
Thanks

hey Matt thanks a bunch! I guess, I need to break the crankcase apart and get the seals replaced. What a job thats going to be. Plus I'm going to convert to a Mukuni while I'm at it. May the force be with me young skywalker! lol Thanks
Randy

hey Guys I finally got my 72 sled to produce good spark after hours, weeks, and months of work. But, now I seem to not to get the carb pump to work. I was checking the line from the carb to the engine, but I dont seem to be getting blow by or suction from the tube. I blew thru the tube and its clear...

hey gang! I need to confirm the proper set up on how the condenser & point spring are mounted with plastic washers in the proper position. Excluding the tiny o washer in the point post, how are they properly done. Example: bolt, metal washer, condenser contact, plastic washer, post, plastic wash...

Hey guys I've tested everything now. Everything is within specs. The only difference is the grounding is coming from the ignition coils when you connect it to the condenser. That is where everything becomes grounded. Any thoughts?

I failed to mention when timing the light would not go out. I had extreme weak spark on fans sad, and no spark on left side.

How would this work with the stator out of the machine? And thank you for your reply

Sometime back, I said that I had a weak spark system. Someone replied that my stator is grounding. everything in my stator grounds including points. does anyone know what is supposed to be grounded and not? And what t items are to
be ounded and what are not

Will the 73 jdx 400 breaker points work on the 72 400? Can't find any more points & condensor for my 72!

Todd thanks million! I own a $50 digital meter! I work on rusted school busses. So with what iknow about them, and all you have said. I'll put it in my girl's garage and start the process of elimination! Thanks again.
Randy

Thanks for your reply Todd. My ohm meter showed low resistance on the plug wires (after I changed them), the coils also, switched coil wires ( same weak sparks), disconnected connector to ignition switch (still weak)! Lol. What grounds should I check, and where would they be. How should I prepare th...