Old Murray
Member
- Joined
- May 24, 2014
- Threads
- 3
- Messages
- 10
Greetings everyone.
I have a Murray riding mower model# 425007x92 that is about 8 years old and it has a B&S 17.0 HP I/C OHC.
The problem I'm having is that the starter will not turnover at all. I installed a new battery yesterday and I'm getting 12.5 volts on battery side pole of the solenoid (3 poles) but only 6.2 volts on the starter side pole and 6.2 volts on the ignition switch pole when I turn the key. When I remove the wire from the starter and turn the ignition I get 12.5 volts on all 3 poles and at the end of the wire that attaches to the starter. The oil is clean and the level is good and the flywheel turns freely so I'm pretty sure the motor is okay.
I have read that compression could be the problem. Last year it wouldn't start but the motor would turnover about half a turn. I learned on here that it needed a valve adjustment so I did that, but the mower is kinda old so they may need adjusting again. The question I have about compression, though, is can a motor maintain compression all winter long? I realize that if the valves aren't adjusted right the compression can't escape through the valve, but over a period of a few months it wouldn't eventually leak out? (The mower has not been started this year. The engine has not turned over once this year...)
Another obvious potential problem is a bad starter or ground. Since nothing would work no matter what I did I pecked on the starter with a small hammer, but it didn't help. The electrical print shows a ground coming from the starter so I looked for it but didn't see it. I may have missed it because it was getting dark but I was wondering if it is grounded to the motor? If so, is the motor grounded to the frame by being bolted to it or is there another place I should look for the motor ground? Also, is there a way to check the starter using a multi-meter?
I have asked a lot of questions, some of which might be elementary, but I am trying to learn so any help would be greatly appreciated!
I have a Murray riding mower model# 425007x92 that is about 8 years old and it has a B&S 17.0 HP I/C OHC.
The problem I'm having is that the starter will not turnover at all. I installed a new battery yesterday and I'm getting 12.5 volts on battery side pole of the solenoid (3 poles) but only 6.2 volts on the starter side pole and 6.2 volts on the ignition switch pole when I turn the key. When I remove the wire from the starter and turn the ignition I get 12.5 volts on all 3 poles and at the end of the wire that attaches to the starter. The oil is clean and the level is good and the flywheel turns freely so I'm pretty sure the motor is okay.
I have read that compression could be the problem. Last year it wouldn't start but the motor would turnover about half a turn. I learned on here that it needed a valve adjustment so I did that, but the mower is kinda old so they may need adjusting again. The question I have about compression, though, is can a motor maintain compression all winter long? I realize that if the valves aren't adjusted right the compression can't escape through the valve, but over a period of a few months it wouldn't eventually leak out? (The mower has not been started this year. The engine has not turned over once this year...)
Another obvious potential problem is a bad starter or ground. Since nothing would work no matter what I did I pecked on the starter with a small hammer, but it didn't help. The electrical print shows a ground coming from the starter so I looked for it but didn't see it. I may have missed it because it was getting dark but I was wondering if it is grounded to the motor? If so, is the motor grounded to the frame by being bolted to it or is there another place I should look for the motor ground? Also, is there a way to check the starter using a multi-meter?
I have asked a lot of questions, some of which might be elementary, but I am trying to learn so any help would be greatly appreciated!