hard to start

I’m working on this Recycler 20334 with a 7hp Briggs, not an OHV engine. It usually starts pretty well on the rope, but not the typical 1 pull start. This mower has an electric start too. I usually will start on electric, but it cranks and cranks and cranks. I’ve removed and cleaned the carb...

Kohler CV15S engine on my old Sears riding mower. Was running fine, then suddenly I noticed it was running really fast and power was missing. Shut it off and it backfired before re-starting, still was running full out. I checked the timing because of the backfire but the shear key is fine...

I have two Sthil MS251 chainsaws and both are almost impossible to start. I have changed the spark plug, installed a new Air Filter, I use fresh gas (ethanol free). I use the 3-4 short pulls to prime and then the big pull to start, but they do not start. The saws are about 8-9 years apart in...

I have a Hustler mini Z 52" deck with Kawasaki 19hp motor. I was having to crank on it a long time in hopes it would fire and start and it did sometimes. It runs good if it ever starts. The starter would sometimes get hot and I would have to let it cool. The key switch was working poorly and I...