My 2305 developed the same starting problem a couple years back just before I traded it in (I think it might have been mad at me). After trying a lot of different things, I finally traced the problem down to being the infamous V4 diode problem. Replacing that diode solved the starting problem for me.Has Anyone ever replaced the diodes on a JD 2305?
Is there 6 or 7 diodes?
Is 4 of them blue and 3 black?
I'm having a starting problem and since the tractor is 15 almost 16 yrs. old, I thought I'd just replace all of them.
Had the same problem last year, dealer replaced the fuel solenoid shut off and a diode.
Worked fine up until now so, I thought I'd just replace them all.
I believe there are 7 diodes in all, but of 2 different types (this is from memory). These are actually double diodes, thus have 3 connectors. My emergency flashers had sometimes not worked, and it turns out that was due to a diode problem as well (of the same type of diode). As I was diagnosing the problem, I removed and tested all 3 of the diodes of the same type as the V4, and found that one was dead (thus the starting problem), one was very weak (thus the flasher problem), and one was sound.
Just finding the V4 diode was difficult because it was way down deep and covered in lots of tape, but if your dealer has already replaced it once, presumably it won’t be too hard to find.
There are several good threads on this topic here on GTT, and also a link to a video of a guy replacing the V4 diode that I found very helpful.
Regarding replacement of the other 4 diodes of the other type, my suggestion would be to avoid fixing something that isn’t broken.