1450 need help.

[rbowser]

Hello all,

My son and I just got done doing a complete rebuild of his K321. We put the carb back on that was on the engine before. The engine starts and runs with the current carb, but it runs super rich and the muffler GLOWS red. I have it leaned out as far as it will go and the issue still exists. I am not sure the correct carburetor is on engine. My question to the group, what carb should I have on it?

Thanks.

 

[mgonitzke]

#30. I'd be willing to bet the timing is off, though.

 

[rbowser]

#30. I'd be willing to bet the timing is off, though.

Ok, how would i go about retiming it.?

 

[rbowser]

Ok, how would i go about retiming it.?

Just follow the manual the same way we assembled it? Or is there something I might have missed?

 

[Greg Riutzel]

I've found checking the timing with a timing light will help dial in the correct timing. There's a sight hole in the fan housing to view the timing marks on the flywheel. You want the "S" mark to line up with the index nub on the bearing plate. (this will give about a 20* advance) The timing marks on the flywheel are not always easily seen so anything to highlight them, white chalk for example, helps. Closing the point gap a skosh from .020" will advance the timing.

The timing is all in the point gap if the cam and crank gears are correctly lined up.

 

[mgonitzke]

http://mgonitzke.net/cubcadet/tools/static_timing.pdf

 

[Greg Riutzel]

^^Excellent post Matt! For years I've used a test light to static time, but a meter is a great idea too.

 

[wh cc guy]

How do you set the timing with the engine on the tractor. Can't seem to find the hole.

 

[fhiggenbottom]

Hello all,

My son and I just got done doing a complete rebuild of his K321. We put the carb back on that was on the engine before. The engine starts and runs with the current carb, but it runs super rich and the muffler GLOWS red. I have it leaned out as far as it will go and the issue still exists. I am not sure the correct carburetor is on engine. My question to the group, what carb should I have on it?

Thanks.

This YouTube will help you diagnose the problem.

 

[mgonitzke]

How do you set the timing with the engine on the tractor. Can't seem to find the hole.

Sight hole location is shown in the service manual, and should be in the PDF I posted as well, as I used a QL when I made that.

 

[fhiggenbottom]

Hello all,

My son and I just got done doing a complete rebuild of his K321. We put the carb back on that was on the engine before. The engine starts and runs with the current carb, but it runs super rich and the muffler GLOWS red. I have it leaned out as far as it will go and the issue still exists. I am not sure the correct carburetor is on engine. My question to the group, what carb should I have on it?

Thanks.

Another possibility could be a leaking exhaust valve.