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PTP
01-20-2012, 01:00 PM
I have a 48" Wright Stander large frame and it currently has a Kawasaki FH541V KAI engine on it. It is a 17hp and I am looking to upgrade it.

How do I know which engine upgrades are appropriate. I know that I have to match up the shaft size. I would like to upgrade to at least a 19hp or possibly 21 or 23. I would probably get the heavy duty air filter as well.

What are my options here?

WrightCommercial
01-20-2012, 02:40 PM
PTP,

Here are the spec's we have used.
19hp-FH601V AS14
23hp-FH680V DS21 HD Filter
25hp-FH721V CS33 HD Filter
These spec's do not include the muffler so that would have to be purchased as the muffler on your 17hp will not fit. These engines are electric only what version is your 17hp?

Best Regards
Wrigth Mfg.

PTP
01-21-2012, 08:31 AM
Thanks, that was exactly what I needed to know.

Now, anyone have any suggestions as to where to buy the 19hp-FH601V AS14?

grassman177
01-21-2012, 10:31 AM
i would get them the cheapest place you can, just do a search is all. of course, franks smallengine is a good place to start.

pugs
01-21-2012, 02:09 PM
Thanks, that was exactly what I needed to know.

Now, anyone have any suggestions as to where to buy the 19hp-FH601V AS14?

Talk to your Kawasaki engine dealer. You wont get an AS14. It will forward.

Florida Gardener
01-21-2012, 03:54 PM
If I was you id go with at least the 23hp. I bought a 36 with the 15 and wish I would have went with the 17.
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olde_blue
01-29-2012, 09:08 AM
With some tinkering, you can put just about any Kawasaki or Kohler air-cooled vertical-shaft engine with a 1" diameter by 3-5/32" length crankshaft. You will pay a premium for a Wright-spec engine, if you can find one, while you may find a deal on an odd-spec engine.

Beware that the 675 cc Kawasakis (19-25 hp FH6xxV and FH721V series) use a different exhaust manifold and muffler than the 17 hp FH541V.

I replaced a 17 Kawasaki on my 52" large-frame Stander (pre 2010) with a CV730 25 hp Kohler about 3 years ago. You need a special muffler and manifold for a Stander (Koher has an accessory catalog for part numbers), but the exhaust is cheaper than the Kawasaki. Some rewiring is required (a longer ground, the starter solenoid is on the starter on the kohler while remote on the Kaw, and the carb solenoid wiring is a bit different) and you need a longer fuel line.

I used a Koher with the "commercial mower" air cleaner (high mounted round cleaner) with top throttle and choke controls, a metal "chopper" grill on top, and a premium oil cooler. It had a 4" long crank that I chopped down. Kohler commands vary greatly in quality; the ones with the air filter mounted low, a plastic grill on top, and plastic intake manifold are much cheaper (you can get them for about $600 on occasion for a 25 hp).

The only problem I've had with the Kohler is it tends to backfire if not shut down a high throttle (something my older 22 hp Kohler didn't do), which blow out mufflers and head gaskets if you aren't careful. Otherwise it is powerful and gets good fuel economy.