Originally Posted by grampi
I know the reason this Honda 160cc engine is having such a hard time getting through my grass is because of two reasons; 1) I'm mulching with it and 2) I work in a different state during the week so I'm not home to mow when it needs it. This time of the year the yard should really be mowed twice a week because the grass grows so fast, but unfortunately, I can't be there to do it. What I'm left with is 6 inch high grass that has to be mowed while I'm home on the weekends regardless of the weather. This means many times I'm either mowing in the rain, or mowing wet grass. I believe if I could find a walk behind mower with at least a 300cc engine, that would provide enough power to go through this thick, heavy, and sometimes wet grass. However, I have never seen any walk behind mowers with this much motor...
You need to do 2 or 3 things in your situation.
Ensure your mulching blades are always sharp if you aren't already.
Set the deck height to its highest setting and mow your whole lawn once there, then mow again at a lower setting-you should never be cutting more than 1/3 of the length of the grass in a single pass. If your grass is 6" and you want to cut it down to 3" you will need to mow twice.
If you have a 20/21/22/24" mower deck and you insist on mowing 6" tall grass and mulching it you simply must mow a narrower strip than the mower is wide. Do not mow the full width every pass-mow half at most, 12" or so.