Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

Toro mower very difficult to start

I have a Toro model 20526C Lawnmower  walk behind  I believe it has a Suzuki OVH engine I can’t see a name on the engine.  I cleaned out the carb. Change the oil and installed a new plug.  I also made sure the chock closes correctly ( no primer bulb) I find the engine need at least 10 pulls to start and when it starts it putters and then clanks  for a few seconds is if the blade is hitting the side of the deck. Once it starts it runs nice and smooth with just a bit of a vibration. Any  thoughts. Thanks