I have been working with my father-in-law on restoring a Bolens 190-01 Garden tractor. We have rebuilt the starter, carb and have replaced misc. missing parts.
I have tried to rewire the tractor using the wiring diagrams from the Bolens manuals, but I am not having much luck. I replaced the solenoid and ignition switch and I am pretty sure that the voltage regulator works. This model does not have a magneto, but a coil.
I did get it to spin the starter and flywheel once, but have not gotten it to do it again. It almost seems like something is grounded out, but I have checked my wiring versus the diagrams many times. If anyone has any ideas that would help out, I would really appreciate it.
Your 190-01 Bolens never had a solenoid originally, so that may be part of your problem. ....The push-button starter switch on the tractor was used instead of a solenoid.
There are two types of solenoids used on Bolens tube-frame tractors. ....One is the grounded type, the other is the un-grounded type. .....You do not have to get a solenoid from Bolens, but it is very easy to get screwed-up if the wrong type of solenoid is purchased from a supplier and installed.
Here is a link to info on Bolens solenoids: http://gardentractor...identification/
Bolens also had several different key switches for the various models, so if you have the wrong key switch, it is also very easy to get screwed-up.
As Bolens 1000 said in a previous post, your tractor was equipped with a magneto originally, so a different (from original) key switch is needed if you are using a 12v coil.
The original key switch had nothing to do with cranking the engine. ....The engine would crank whenever the push-buttton switch was activated. .....The key switch controlled the ignition circuit by connecting the points/condenser/magneto to ground when the key switch was in the "off" position. ...So, the key switch had to be "on" in order to allow the engine to run.
When using a 12v coil in place of the magneto, the key switch must supply 12v + to the positive side ot the ignition coil when the key is in the "start" and "on" positions. ....The negative side of the coil gets connected to the points & condenser. ....The key switch does not connect the coil to ground in the "off" position, it just prevents the 12v + from going to the coil.
The voltage regulator has nothing to do with the tractor starting (unless it is wired incorrectly). ...The regulator's only function is to control the charging rate of the generator.
It will be much easier to help you, if you can identify the type of solenoid you are using, and why you installed one. .....Also, describe your key switch, and which wiring diagram you are using.
As a side note, when requesting help for a problem, try to be as specific as possible, so others may have a better understanding of the problem. .....For example: "engine won't start" vs. "engine won't crank" vs. "engine cranks, but won't start" vs. "engine starts, but won't stay running".