New to the Prowler and Arctic Cat, need help - Arctic Cat Prowler Forums: Prowler UTV Forum
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post #1 of 30 (permalink) Old 03-20-2018, 04:09 PM Thread Starter
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New to the Prowler and Arctic Cat, need help

I just traded into a 2007 Prowler XT 650 H1. It has some issues that I am trying to work through and I really need some help. When I got it about 30 MPH was top speed, all it would do. Very little power on a hill. I read a lot on the forum and decided to check the valve / tappet adjustment... It was WAYYY off, I could have stuck a nickel in there. Getting them down to .004 / .006 took all the adjustment left in the adjustment screws. So, I guess I need a cam. Engine runs better now, a lot quieter, but still only 35 - 40 MPH, don't trust it to go up my usual trails yet. Looking for cam, do I need to look into other parts as well? Advice needed

2007 Prowler XT 650 H1
Pikeville, KY
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post #2 of 30 (permalink) Old 03-20-2018, 04:36 PM
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I may have some bad news for you but when my adjustment screws were like that it was because the oil pump driven gear stripped and no oil was getting to the top end. Before driving it any more I would check your oil pressure and that gear. I'm guessing you'll need at least a cam and new rockers, I've got a bunch of pics of the damage to mine I'll try to repost or send links. I had the same top end speed problem like you along with it. The 2007's had issues with the failing oil pump gear and the part was updated.

'07 Prowler 650 H1 XT, L.E.D. stop/turn signals, Summit Racing heater, AC winch, AC windshield, soft cab & doors, 6' Eagle Plow, oil gauge, Maxxis MT-762 truck tires, AC Fender Flares, E-Brake alarm, Yutrax UTV Jump Seat, Dynatek CDI
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post #3 of 30 (permalink) Old 03-20-2018, 04:59 PM
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Here's a couple pics of mine, you can see that all the teeth were gone from the oil pump gear and the rockers totally shot.




'07 Prowler 650 H1 XT, L.E.D. stop/turn signals, Summit Racing heater, AC winch, AC windshield, soft cab & doors, 6' Eagle Plow, oil gauge, Maxxis MT-762 truck tires, AC Fender Flares, E-Brake alarm, Yutrax UTV Jump Seat, Dynatek CDI
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post #4 of 30 (permalink) Old 03-21-2018, 05:19 AM
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I think Mike (MLH1962) is dead on. There were some issues with the oil pump gears on certain models/years. The bottom end on these motors are pretty durable (all roller bearing, and splash lubrication), not so much top end! My 700 calls for a minimum of 12-20 psi of oil pressure at 2,300 rpm. There are several sites that offer a free service manual download: K&T lawn equipment, Country Cat are two that come to mind. Near the oil filter boss there are two allen plugs, or oil cooler fittings if so equipped. They suggest putting a gage to check pressure on the upper one.

2009 700EFI XTX, , AC Winch, 2010 Dust Shield EPI Sport Utility Clutch Kit , Street Legal, Cage chopped 2 ", Aluminum Diamond Plate Trim, Relocated Factory Bladders with covers, 5 Pt. Harness installed, Bed Tiedown System, Scat Pro-Car Seats, Secondary Battery installed, Oil Pressure, Oil/CVT Temperature, Volt Meter & Water Temp Gauges installed with Dash Plate, Bighorns, ITP Black 212 Wheels. Tonneau cover. 750 Big Bore Kit, Web Cam, and Rocker Arms.

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post #5 of 30 (permalink) Old 03-21-2018, 07:05 AM
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Here's the mistake I made, I rebuilt the top end myself and while doing it I adjusted the valves and started the engine. It seemed to be pumping oil very well but that was at low RPM's and I guess there was enough nubs on the teeth to turn the pump but slipped at higher RPM's. I was warned by folks here to check the gear but I thought it was pumping and they were right I cooked the top end again.

'07 Prowler 650 H1 XT, L.E.D. stop/turn signals, Summit Racing heater, AC winch, AC windshield, soft cab & doors, 6' Eagle Plow, oil gauge, Maxxis MT-762 truck tires, AC Fender Flares, E-Brake alarm, Yutrax UTV Jump Seat, Dynatek CDI
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post #6 of 30 (permalink) Old 03-21-2018, 07:10 AM
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So I am curious as to the models and years that seem to have weak oil pump gears....... specifically if my 2010 XTZ may have that issue? No signs at this point, but while I have things torn down I'm wondering if it's something that needs checking?

2010 Prowler 1000 XTZ Desert Red, hard top, Kolpin split front windshield, rear lexan window, RzR S bucket seats, 28" Swamp Lite tires, MotoAlliance Denali 72" Plow

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post #7 of 30 (permalink) Old 03-21-2018, 07:18 AM
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I think it was just the 2007 650's

Michael67 take a look at my adjustment screws in this thread and see if they look like yours: http://www.prowlertalk.net/forums/ar...3-bad-cam.html

'07 Prowler 650 H1 XT, L.E.D. stop/turn signals, Summit Racing heater, AC winch, AC windshield, soft cab & doors, 6' Eagle Plow, oil gauge, Maxxis MT-762 truck tires, AC Fender Flares, E-Brake alarm, Yutrax UTV Jump Seat, Dynatek CDI
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post #8 of 30 (permalink) Old 03-21-2018, 07:21 AM
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Seems the oil pump gear failures were confined to pre 2008 650 Prowlers. Not sure when they upgraded the gear. I've never heard of a 1000 gear failure. I changed mine when I first heard about the concern, still got the old gear, and it is serviceable!

2009 700EFI XTX, , AC Winch, 2010 Dust Shield EPI Sport Utility Clutch Kit , Street Legal, Cage chopped 2 ", Aluminum Diamond Plate Trim, Relocated Factory Bladders with covers, 5 Pt. Harness installed, Bed Tiedown System, Scat Pro-Car Seats, Secondary Battery installed, Oil Pressure, Oil/CVT Temperature, Volt Meter & Water Temp Gauges installed with Dash Plate, Bighorns, ITP Black 212 Wheels. Tonneau cover. 750 Big Bore Kit, Web Cam, and Rocker Arms.

Either - Dick or RD
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post #9 of 30 (permalink) Old 03-21-2018, 11:51 AM
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Quote:
Originally Posted by Paxx View Post
So I am curious as to the models and years that seem to have weak oil pump gears....... specifically if my 2010 XTZ may have that issue? No signs at this point, but while I have things torn down I'm wondering if it's something that needs checking?
I believe your good to go in stock form , I have 5K++ miles on mine and most of them are hard trail and reclaiming trail rides as well as distance trail / cross country rides some to 800 miles .... I am engine wise 100% stock OH and mine is a early '09 model

name is Gary or hey you if ya forget

2009 Prowler XTZ , couple things added here and there
'83 CJ7 / SBC + whole lot added here and there
'01 Dodge / Cummins / Dually, a ton of stuff added here and there

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1. Bring in a good load of firewood for the pit
2. start the morning coffee , strong but not burnt / boiled down , IMPORTANT start it early as many of us old farts get up early !!
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post #10 of 30 (permalink) Old 03-21-2018, 12:20 PM
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RD & Gary, thanks for the info. It's a relief to hear that the 1000's seem to be ok. I did notice the oil cooler on my XTZ and was kinda surprised to be reading on here about adding oil coolers to the prowlers. I was actually glad to see that mine had one. Gary, do you have a oil temp gauge on yours? Do you think I should mount one?

EDIT: RD, I know you have one and I can see why with the problems that originally the 650 had.

2010 Prowler 1000 XTZ Desert Red, hard top, Kolpin split front windshield, rear lexan window, RzR S bucket seats, 28" Swamp Lite tires, MotoAlliance Denali 72" Plow

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