Last summer a neighbor had a stroke and we had the DR there clean up one corner on the yard that had been over run with bushes. It was cutting heavy brush very well then it went to knocking. We pulled of the deck cover and when engaged the belt was jerking and slapping when normally it runs very smoothly. I was so stressed out that I broke it the son walked it home and it has set untouched since last summer.
Our pastor wants my son to cut back a fence row that has crept into the yard over the years so the son got it out after setting a year with no battery charging since we put it up. He choked it and it fired up and ran fine with the old gas (pure gas). We engaged the blade and the same jerking and slapping started like it was doing last year.
We laid it on its side so we could see the belt engaging cable work. It was all fine but I noticed a bulge in the belt at the rear belt pulley.
It turned out in the very heavy brush a dead piece of limb about 1.5" long had wedged in the V of the pulley and it was making the belt go very tight causing the jerking and slapping of the belt. He just dug the piece of wood out of the V pulley and all was well so he mowed for about 15 minutes in the edge of the woods just to prove it was working well.
Then we washed it up very well and put it back up and are recharging the battery the AGM battery from WM that we installed last year. Before we take it on that rather large job we are going to change the oil and add Ceratec to ceramic coat the engine wear parts. It is to help air cool engines run a few degrees cooler has well.
After tearing down the junk Polaris 325 cc engine that we patched up with a bad crank just as a Ceratec test bed I am sold on Ceratec does as Liqui-Moly states after running the bad engine for 1,000,000 revolutions with a chewed up crank and an new Standard size rod bearing. After that 11 hours of run time the rod bearing was cut down and was knocking under a load but the chewed up crank had smoothed up some and the cam lobes showed a glass look and were very slick.
After a year of fretting over breaking the DR it turned out only to be a small piece of stick stuck in the V pulley. That fact made my day since we need to use the walk behind 2.5' bush hog.
