My love/hate relationship with Hayter mowers has seen me get my third one in as many years. All 41's (16"?) self propelled with roller. First one was B+S engine with fuel tank under the carb + a primer bulb. Cold start fine, hot start needed up to 10 pulls- operator presence handle made it stop while emptying bag. Second one would only run with choke half on despite dismantling and cleaning the carb (B+S engine with fuel tank above carb) There was a bang and the drive jockey pulley fell out. Still works OK as a push mower.2 pulls hot or cold. Latest one has a Tecumseh engine, no operator handle, it just keeps running until I stop it. Starts one pull hot or cold, pulls itself along fine. Total cost c.£150 (£50 a year) Gave one to my son who can manage 10 pulls (goes to the gym ) The jockey less one went to daughter in law to push on flat lawn. Now should I buy a brand new one next year ?- I expect to be able to follow behind one for 20 years. 