cc 109 k241 new owner - need some help please!

capn_mark · #1 07-22-2010, 05:51 PM

Hi everyone, I picked up a Cub Cadet 109 with mower and tiller. She ran pretty decent, but just died on me the other day. I scanned the archives and thanks to your good posts, I got it running again. I put in a new coil, and the condenser and points are waiting for me at NAPA.

Heres my questions and issues:
- runs decent driving around, but under load (really long grass) she is bogging down, and I need to stop the mower to get it rev up, then repeat. I have played with the carb settings and I am checking the gas flow and changing the filter today.
I am hoping the new points and proper gap will help this? Do I have the mover drive belt too tight? Thoughts?

- she blows smoke from the crankcase vent (I hope its the crankcase vent) near the carb - there was no breather hose, should there be?

- If everything is working properly, does the 109 have enough power to cut tall grass (I am talking 2 ft high hay effectively - maybe I need goats instead) or am I asking too much from it?

Thanks for your help - Great forum!

CC1450 · #2 07-22-2010, 06:41 PM

in regard to the bogging did you try to cut at the highest setting? might have to make a couple passes with grass that tall.

_DX3_ · #3 07-22-2010, 06:52 PM

2 feet tall grass is probably asking a bit much for 10hp motor, but, you might also check your governor setting and set it to be a little more sensitive.

Matt G. · #4 07-22-2010, 06:59 PM

The timing has to be set right or it will have no power, and gapping the points to 0.020" probably isn't going to do it. Read this.

Methos · #5 07-23-2010, 01:13 AM

capn_mark · #6 07-23-2010, 11:10 AM

Thanks for the input everyone. I put in the new points, timed it, made sure the mower was in the highest position, and she worked great! I mowed about 1.5 acres last night, no more bogging and lots of power.

I note it isn't blowing smoke under load from the exhaust, but it does blow from the crankcase vent. Is this normal? Is there a way to route the vent back to the air cleaner?

Thanks again,
Mark

cubs-n-bxrs · #7 07-23-2010, 08:51 PM

capn_mark

The smoke coming from the crankcase breather is blow by from the rings. They are probably worn a little bit. Not a big deal unless you are losing power really bad. My 125 smoked for a good ten years before I rebuilt the motor. Mine got to the point where it had about the power of a 7 horse and would overheat in no time.