Can't get my new 72 to start.

[cbrown]

I just got a model 72 the other day and it is getting fuel and spark but will not start. Any suggestions? Thanks.

[Mizar N68X]

Hello Cbrown,
Did you check the spark plug?
Try a new one to rule that out.
Also I tried to start my 70 today and had to play with throttle position and choke position quite a bit to get it running.
It did eventually start but did not like it.
How old is your fuel?
keep us posted.....

[johncub7172]

Glad to have you here as a member! Someone will come along who knows way more about your problem than I do, and perhaps they can help. So to start with, a little more information about the problem is needed. We love pictures, so if you have'em, lets see! I have a 71, 72, and a 123.

[R Bedell]

Check you timing.... See these helpful links...

Link A..... Timing A

Link B..... Timing B

[T-Mo]

Chad,
Did you try shooting some starting fluid in the carb to see if it would start? Most of the time I find is that these old tractors have dirty carbs that won't let it run. If it starts on starting fluid, then the carb needs a good cleaning.

Also, as Roland suggests, check the timing. Make sure the valves aren't sticking, adjusted properly. Also what does the spark look like?

[cbrown]

Done a full tune up and spark seems to be fine and took the carb off and sprayed eveything with carb cleaner. (Maybe not a good enough cleaning) tried shooting gas in the carb and nothing. I will try and mess with it some more this week and try starting fluid and check the timing. Will keep you all posted.

[cbrown]

I am unable to find a sight hole on the shroud in order to check the timing.

[Matt G.]

It's there somewhere, possibly blocked by the S/G or covered by one of those little sheetmetal plugs.