Rectifier & Regulator

[INEEDHELP]

I love my Yamaha but I am clueless about its mechanics - I need help
I have had a problem similar to what I have seen discussed under PTO problem - the PTO would not restart after being stopped when the engine was hot - and sometimes to get it to work at all I had to overrev the engine into the "Choke" zone almost causing it to stall before the PTO would engage.

Having read a lot of stuff, I mostly didn't understand, I put a meter on the battery - it reads 12.56 volts when the engine is off and 12.45 when the engine is running. I read that this needs to be about 14.00 when running for the PTO to work. At present the PTO will not engage at all no matter what I do. Does this mean there is a problem with the Rectifier & Regulator - and if so how do I test/prove this? If not - what else should I be doing.

A new part is very expensive probably worth more than the tractor so please help - but could you keep your answers very simple. Thanks

[tom rut]

CHECK ELECTRICAL PLUG WHERE WIRE COMES OUT OF FLY WHEEL AT BASE OF ENGINE.

[rattosh51]

You are correct about the voltage needing to be about 14v. Under 13v will not be enough to turn on the PTO.
First thing to always try is a different battery. If no change in voltage with different battery, than your charging system isn't working.

[beulahcutter]

As he (Rattosh51) says change the battery....I had exactly same problem here.... new battery made all the difference

Ps. good to see you back on the forum (Rattosh51) as not seen you for a while!
during the summer I picked a spare yt3600 unit (Not so many £££) and after a little tinkering managed to get it running....gonna use for spares although my daughter wants to use its chassis for a toylander/model land rover conversion. Is there a facility to pm, that you know about on here?

Stuart

[rattosh51]

Thanks Stuart--changed jobs and forgot to change my profile email address, and was too busy the last few months...but I'm Back! I've been looking at a 3600 in My neighboorhood for $350(U.S.)....don't really need
it, but I'd like a crackat the smaller model for awhile....good luck with yours. Don't have any info on that Rover conversion, but keep us informed!