I have a Toro 2 cycle GTS Suzuki engine 22"push mower bought new back in the 80's ran good for several years. Now when I start it after about 3 or4 min. sound like a pee thrasher. I checked the shear key it looked ok. Thought it might be the timing some how had move.Everything seams tight machanicly.I have always used the best 2 cycle oil. Need help with this one .Many thinks cabdor
I'd check your exhaust ports to see if they are not carboned up. Also check your muffler, those dang mud dobber wasps will sometimes block the muffler. And the nest they build is about the equivalent to J-B weld!!!
