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Hello all, I'm working on an old (2009) Bad Boy Pro 27 with a Kohler 27 hp. I did a longblock swap using a used longblock and the original accessories including charging system etc. Mower preformed perfectly for several hours then began blowing the main fuse. I traced the issue back to the...

Troubleshooting a no spark issue. Engine spins over. No spark. Both coils test good, checked for sheared crankshaft key, tried a known good voltage reg / rectifier, new plugs. One thing that I do NOT know on Bad Boy / Kohler is which (if any) safety switch will allow the engine to crank but cut...

I recently swapped out a longblock SV840 on a BadBoy 60" Pro 27 ZT. Runs perfectly except it stalls immediately upon engaging the deck. BUT only for the first few minutes. After about 5-10 minutes of running, it operates flawlessly. I checked voltage when engaging PTO, no significant voltage...

Just completed a longblock swap. Have everything back together. Engine started with a shot of starting fluid. Ran perfectly, smooth idle, smooth at 50% (didn't try to run at wot yet). Shut it down and restarted several times perfectly. Let it set about an hour now will not start. Replaced carb...

Trying to sort a charging issue on Ariens Max Zoom 60 / Kohler Courage Pro 25. Just acquired used. Dead battery. Former owner said the blades quit the the engine died. I assumed bad battery. Partially correct, battery would not take charge from charger. Replaced, started, ran great. Shut off...

Please forgive me if this is a stupid or redundant post. I have replaced a couple of FX850V engines because they eventually used so much oil. This FX691 is really just starting to get bad. (It has 1375 hrs) My question: is it possible to re-ring this engine by just removing the heads and bottom...

I am going to replace the Kawasaki engine on an Exmark Pioneer E series 48" that I bought from a very dishonest POS online. It's a long story but regardless, he posted a pic of the spec tag which showed an FX 730V-CS12. The engine is actually FR651V (according to the air filter cover) and locked...

Can anyone tell me or point to a source that lists the actual differences in the current iterations of the 850V? I'm particularly interested in is it feasible to change the charging system from a S00 from 15 amp to 26 amp to replace a CS12 engine and is how difficult to switch an EFI over to...

I am hoping for advice from a seasoned Kawasaki engine tech. Here's what I have: a 9 year old Hustler Super Z that has had several parts replaced, good pumps and motors, mows great but has right at 2000 hrs on the Kaw FX850V-CS12 and is using oil. From personal experience, this is the beginning...