hobiercr
hobiercr GRM+ Memberand HalfDork
10/2/13 6:58 p.m.

As I haven't started a build thread yet on my Challenger (or anything else for that matter) I figured I would start one for my pit vehicle, a 1988 (ish) Kawasaki Mule 1000 I picked up off of eBay many years ago.

The Deal: I'm rough on the year but it was the relatively early 2000's when this popped up on eBay from a buyer with very low feedback but close enough (Miami) at a low starting bid ($1K). This was before auto bidders so I waited until the last few seconds, dropped my bid and got it for just over the starting bid. I emailed the seller and told him I would be there the next day to get it. Luckily he came through and early the next morning I hooked up my 10' lawn trailer and headed South. When I got to Miami ~6 hrs later I noticed one of my trailer hubs was warm so I stopped by an aut store, bought some tools and grease and repacked the bearings in a church parking lot. Picked up the Mule and headed home with no issues.

The Equipment: The Mule 1000, aka KAF450-B1, has a 454mL 2-cyl water cooled engine that it shares with the 454 Ltd motorcycle. It utilizes a belt drive with torque converter and the engine and transaxle employ a common oil/lubrication system. The independent rear axle has a locking mechanism on the dash for slippery conditions. Accessories on this fully equipped 2wd UTV include lights and a horn.

In the eBay ad the pictures showed the "Beach Patrol" logos on the bed and some slight damage to front push bar. While I expected some rust from a former Ft. Lauderdale beach vehicle I was presently surprised that it was not too bad and the machine seemed well maintained. It had obviously hit something in the left front and the push bar rubbed the tire under hard turning. I pulled the push bar, removed the wheels and inner fender liners and could see that lower control arm was slightly out of line. As the control arm had some good surface rust I pulled it and straightened with the vice/hammer combo, media blasted and then primed and painted it. I repacked the bearings, checked the brakes and decided to change the brake hoses and pads while I had it apart. Unfortunately no photos of all this work.

Although it doesn't get used much I do use it every year at a local SPCA Shelter fundraiser (Pet Walk) where it gets loaded with two 55 gallon plastic barrels which hold water we use to fill, and refill, and refill dog bowls throughout the event and along the mile walk route. The walk is 10/12 so it was time to address the overheating issue that we started having last year. Nothing like procrastination as a motivator.

Got her in the shop and up. Removed the thermostat housing and the cooling issues started to become evident.

A couple of broken bolts later and we have lots of corrosion. Maybe should have run more antifreeze...

Yep, that is not good.

Next, water evidence on top of the head.

Pulled water pipes from block (where coolant hoses attach) and not only were they very corroded (with pin holes) but they were almost entirely blocked as well.

Pulled the belly pans to get to the lines running forward to the radiator out.

These came out easily and all hoses are fine and pipes are solid. They will get sanded and painted before being reinstalled.

Next, pulled the radiator which I knew was damaged but not leaking, amazingly. When I did the front end repair I saw the damage and during the past year sourced a used radiator on eBay. Normally these used run over $200 but I scored this one for $125 shipped!

New and old. Swapped the fan over and that is good to go.

Next, pulled the impeller housing cover. Impeller looks fine and spins freely and smoothly. I am not going to pull this as there was no evidence of oil in the water and I don't want to replace the mechanical seal if it isn't required. For the cost of a gasket I know this is fine. I will have to replace one section of pipe as the hard pipe going into this housing had bad enough corrosion to warrant replacement.

Still undecided is if I will replace this fan switch. They are discontinued so hard to find and I am not sure if this one is totally dead. I have a switch on the fan now and plan to add a temp gauge. This switch is easy to get to so replacing later will not be an issue. I'll test the switch to be sure it is dead.

More later when the new parts arrive.

RossD
RossD PowerDork
10/3/13 7:12 a.m.

Cool build.

Good luck.

sethmeister4
sethmeister4 Dork
10/3/13 7:37 a.m.

Very cool. Man, that is some serious rust/corrosion! You have your work cut out for you!

unk577
unk577 Reader
10/4/13 7:29 p.m.

That's the best fiberglass I've seen on one. Used to have one myself

Klunk35
Klunk35
2/13/18 9:00 p.m.

I've recently purchased a Kawasaki mule 1000 and need to remove the primary clutch pulley.  I have already removed the bolt, but am having difficulty. Any help would be appreciated. 

John Welsh
John Welsh Mod Squad
2/13/18 10:14 p.m.

For the last couple of years, late in the day, this becomes my favorite vehicle at The Challenge. Thanks much for bringing it out!

GCrites80s
GCrites80s Reader
2/14/18 7:56 p.m.

I didn't know there were Mules this old. And it's got the 454 LTD engine? The 440/454 LTDs were about the most common UJMs rotting in sheds when I was a teen back in the '90s.

hobiercr
hobiercr GRM+ Memberand SuperDork
2/15/18 3:25 p.m.

In reply to Klunk35 :

I've never done it but it looks like you need a specialty tool. This video shows the tool in use (though not on a Mule).

 

 

 

hobiercr
hobiercr GRM+ Memberand UltraDork
10/17/22 4:21 p.m.

Just spent a few days getting this prepped for this year's Challenge. Rebuilt the carbs last year but it still is running a little rough for my liking. I pulled the plugs (18mm deep socket?), checked gaps and then did a compression check. Well, kinda. Once I found the right spark plug adapter I went to turn it over and lost all electrical. Hmm. I bumped the starter by crossing the solenoid terminals and saw 100 psi on both cylinders. This is low, but I wasn't really able to spin it over well with that method. I will revisit this at some point. When I went to pull out the compression tester the adapter sleeve stayed threaded in the block. Oh, joy. Took a bit but got it out.

Started trying to figure out the loss of electrical and traced it to the main fuse. Not blown, but the connections on one end of the bullet fuse are corroded. Cleaned up with some sandpaper and now it seems to be working ok.

Checked the resistance on the coils. Both tested within spec but one was situated where getting the leads back on was difficult. I thought I got them ok but afterwards I started it, set it at high idle to warm up, and it dies after about 10 seconds. Would not refire but turned over fine. Verified the fuel pump was working and the fuel pump relay was ok. Looked at the wiring diagram to see that the ground for the fuel pump is only live when the engine is running and it grounds through the coil lead. Fine, obviously the leads are not right. There is a removable panel that allows better access to the front coil (12 bolts). Pulled that, reattached leads to coil, and it fired right up.

So, at this point I'm back to ground zero but it seems to be running good enough to bring it again. If I get a chance I'll finish the roof mounts, or just zip tie it on as the past 2 years. I also drilled out a broken bolt from the exhaust cover plate and replaced it. No more vibrating metal!

03Panther
03Panther PowerDork
10/17/22 5:56 p.m.

No clue they went back as far as 1988. Is that year accurate? 
The longer of my

short lived full time jobs had one... no clue on year or engine, though. 
they ended up with a Polaris ranger; but the mule was better suited to their needs. 

hobiercr
hobiercr GRM+ Memberand UltraDork
10/17/22 6:05 p.m.

In reply to 03Panther :

Yep, '88 was when the KAF450 came out. Kawasaki raided their parts bin for the engine. Later models got air-cooled singles, twins, or diesels.

03Panther
03Panther PowerDork
10/17/22 6:17 p.m.

In reply to hobiercr :

I the one at work was a single, now that us mention it. 
That's kinda cool to have one of the firsts!!!

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