I am thinking about buying a zero turn CC model RZT-L46 FAB (17AGCACN010). That one has the Honda engine GXV630. I don't know anything about CC or this lawn mower. My mowers in the past have been Craftsman and Ariens. $300 asking price seems to be a good deal. Seller says it needs a starter and engine is not running, but turns by hand. It's about a 100 miles away so I have not gone out to see the mower yet. Can you guys give me some tips what to look out for, what to check and what questions to ask about this particular model, its known weak spots and trouble areas and its good points. I really appreciate your input on this. Thanks.

$300 is cheap for ANY zero turn mower....
 
For the deck, try to loosen the belt and check idlers, spindles and belt for their condition. 
 
The engine is the big thing... For just a bad starter, folks won't sell a $1,000 + machine for a bad $100 starter.  Sooo, I would be very cautious about the engine.
 
W/O being able to crank it over normally limits what you can check. 
Pull the spark plugs, inspect for oily deposits, excess carbon, etc.
 
Check the engine oil, is it filthy, low, etc
 
If you can, run a pretty heavy line(wire) from the positive terminal on the battery
to the starter lug.  See if it spins over, just clicks, etc.  If it just clicks, battery may be low or the starter bad.  If it spins over, you know the starter isn't bad, there's other issues. 
 
Look into and smell the fuel tank. If the fuel is bad, you can usually see/ smell it...
 
How long it's been sitting, last run, etc....
 
Good luck.

I did ask the seller on the phone about the deck and the transmissions, which are really the other 2 areas which can really get expensive. He said both transmissions are good and so is the deck. I will wait until next weekend. If it is still available then I will give him another call and asked the questions you suggested. The mower is not local and I will have to do some traveling, so I try to get as much info as i can before I make the trip. I was hoping to get more info about known, inherent gotchas and recurring failures associated with that series and model, especially with the Honda engine which, from what i understand, is not the engine normally used by Cub Cadet. Maybe that's a good thing, maybe it's bad ??? I would love to hear from someone who actually owns one of those and knows all the good and the bad about it. Yeap, SRT, you are right about the price, very attractive and tempting to just buy it and hope for the best.
 

I'm not familiar with that specific model. I work on most everything and figure things out.
Using the parts diagram is a big help. 
 
I'd do a search on that brand and find a forum specific to it... 
 
Myself and Mike (the moderator) are about the only ones responding 
to questions... 
 
Please post back how it goes.... 
 
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Well, last Sunday I drove the 200 miles to see the mower and I bought it for $250 while keeping my fingers crossed and hoping for the best. The seller was a senior gentleman who seemed to be honest and sincere. He answered all my questions in a way that made sense without raising a red flag, except for one, the one about the starter. The mower has not been running for almost a year. Everything was just fine until it quit, he said. No issues with the hydros, the deck or engine. But then the starter went bad. For almost a year, he said, he has been trying to find a starter for this GXV630 Honda engine and was unable to find one. Now that is hard to believe and I don't know what's up with that. I googled it to find one and they popped up like pretty girls on the beach. I don't know what he is talking about, but I am sure I will find out when I get to it. The fan covers are missing, they jerryrigged an electric fuel pump to the engine and who knows what other dumb things he did, but that is the challenge and I will find out as I go through it all with a fine toothed comb. After I got back home I gave it a good cleaning and I must say I am very happy with what I got for $250. With only 250 hours on the meter it almost looks new. All original paint, no flaking or rust anywhere and if nobody ever opened the engine and messed with it, it should be ok too. The seat is kinda weathered and I noticed that the right front caster swivel bracket is severely binding sort. Probably one or both ball bearing are shot, not a big deal to replace. Other then that I got my project for the winter cut out and I am all excited about it. Hopefully no money pit or unpleasant surprises but when I get done with it, it should be like a like new ZT worth a good $2000.

Nice!!!
 
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I started the restoration process of my newly aquired project and I am in desperate need of a good electrical wiring diagram for that particular mower. It is a 2017 17AGCACN056 or RZT-L46 (Honda engine). I found a few, but they are very hard to make out. Thanks

I don't have access to that...   :(

Does anybody know what lines go to where on this fuel pump. Since the previous owner messed around and put an electric fuel pump on the mower I want to put it back to the factory way

This video should help:
 
https://www.youtube.com/watch?v=vRpv8zS6JWk 
 
 
 
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