My VC500 lawn mower has just recently started becoming hard to pull start. It has the VSX160 power torque motor. I removed the decompressor diaphragm thing (not sure what it?s called) and the pull start works easy. I sucked on the hose nipple of the diaphragm and the piston pulls in and stays in OK while I keep the nipple blocked. I replaced the hose from the diaphragm to carby with a clear hose I had. Didn?t make any difference. I noticed the original hose had a white plastic plug ( with a small hole through it ) in it at the carby end, is this a check valve? I think I might have lost the ball bearing in front of it if it is. Could someone offer some guidance? Could I get an assembly picture of the carby diaphram set up. The mowers throttle would increase by itself while mowing too. I would really appreciate some help.
I tried to access your "Parts list and repair manuals" section but I don't have a password. What do I have to do to gain access? I'm happy to make a donation, I don't have a credit card (fairdinkum!), I'll have to send you a cheque.
PS. The throttle actually advances by itself until it's flat out. Governor is OK.