New Carburetor - Cub Lo Boy 185 -still won't start

[Jim Becker]

They used a point file years ago. The new points come coated and how do you get the coating off. It won’t run with the coating on them.

Rub each contact point on a piece of Kraft paper (grocery sack or cardboard) before you install them. Or you can hit them a bit with a point file.

[Rick Spivey]

Oh my. I'm not sure I can accomplish those 2 tasks. I am looking over the engine service manual and it looks like removing and checking the valves is a bit involved....not sure I'm smart enough to figure it out.

Not to leap ahead, you definitely should check out the other simpler items first. But a valve adjustment does not require removing the valves, just the valve cover. It is just the least bit tricky, so if you have never adjusted valves or are not a hobby mechanic, you may want to enlist some help. Perhaps there is a forum member close to you, or you could get the tractor to a Cubfest for some superb help and education.

On another point, I don't know your usage, but if you mow an acre or more regularly, 5 years may be beyond the serviceable life of your plugs. With enough usage, it would ne be unheard of for one of these tractors to receive a fuel tune-up yearly. Pull the plugs and check their condition; there are charts on the internet that will give a comparison to check your plugs against, and determine if there are any serious engine issues at play.