Painting the motor - Polaris ATV Forum
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post #1 of 9 (permalink) Old 03-18-2017, 11:56 AM Thread Starter
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Painting the motor

Hoping I am posting in correct area. So I painted my motor with two light coats of black hi temp engine paint. A friend of mine has advised me to strip the paint off. His reasoning is that black will increase the engine temp where i may have cooling issues since it's a 2 stroke motor. I was advised to go with keeping it a silver color or blue, anything but black. Anyone have painted their motors black and had issues? Or should I take his advice and strip off the black paint?
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post #2 of 9 (permalink) Old 03-18-2017, 01:32 PM
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Is the engine free air cooled (no fan moving air across the engine) If it isn't water cooled, I would strip off the paint regardless of color. Seems to me that anything on the surface of the engine would inhibit heat transfer to the air. If its a water cooled model, i would think it might run a bit warmer but it shouldn't make a difference.

1st Machine
2001 Magnum 325 with a blown engine; rebuilt 2004. Broke timeing chain 2016 rebuilt again and still running. Warn winch and Moose 60" plow

Wife's machine:
2007 Sportsman 500 EFI, Polaris Winch, 26" Bear Claw HTRs on Moose 427x Wheels. 12x7 front, 12x8 rear, QSC Clutch Kit
My Trail Machine:
2004 Sportsman 600 Twin, 25" RipSaw Tires on stock steel wheels, Moose rear box
Completed Project machine:
2001 Magnum 325 MOSE with a blown engine. Transplanted a 2005 Magnum 330 engine. Committed suicide on the trail Oct 2016. Spun Rod Bearing after oild cooler line failure. Rebuilding Engine.
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post #3 of 9 (permalink) Old 03-18-2017, 03:13 PM Thread Starter
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It is water cooled with radiator and fan
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post #4 of 9 (permalink) Old 03-19-2017, 06:44 AM
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In that case, it might run a bit warmer than before, but it shouldn't be a problem.

1st Machine
2001 Magnum 325 with a blown engine; rebuilt 2004. Broke timeing chain 2016 rebuilt again and still running. Warn winch and Moose 60" plow

Wife's machine:
2007 Sportsman 500 EFI, Polaris Winch, 26" Bear Claw HTRs on Moose 427x Wheels. 12x7 front, 12x8 rear, QSC Clutch Kit
My Trail Machine:
2004 Sportsman 600 Twin, 25" RipSaw Tires on stock steel wheels, Moose rear box
Completed Project machine:
2001 Magnum 325 MOSE with a blown engine. Transplanted a 2005 Magnum 330 engine. Committed suicide on the trail Oct 2016. Spun Rod Bearing after oild cooler line failure. Rebuilding Engine.
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post #5 of 9 (permalink) Old 03-19-2017, 06:54 AM
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would i advise to paint the engine,no
but the color isn't the problem,
99% of the radiators are black
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post #6 of 9 (permalink) Old 03-19-2017, 11:48 AM
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Quote:
Originally Posted by stave7119 View Post
In that case, it might run a bit warmer than before, but it shouldn't be a problem.
Quote:
Originally Posted by cariboo View Post
would i advise to paint the engine,no
but the color isn't the problem,
99% of the radiators are black
X2 - leave it black

2014 Sportsman XP 850 H.O. LE Pearl White
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post #7 of 9 (permalink) Old 03-19-2017, 01:20 PM
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Radiators have not been black since they started using aluminum. Id strip the paint off.

Thanks,
Will

2012 Sportsman 400HO - 5,800KM and counting.
25" Traxion Grippers
Warn RT 25, Warn Hawse Fairlead, Synthetic Rope, Glacier III plow, Kolpin Rear Trailbox L&R Mounts.
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post #8 of 9 (permalink) Old 03-19-2017, 07:39 PM
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The paint won't hurt cooling much, if even at all..... now if you chromed it, that would be a completely different story. Chrome works as insulator.

Note, many motor cycles (even air/oil cooled Harley's) have "blacked out" engine options these days!!

Matthew "MustBeNice"

2012 SPORTSMAN 800 EFI (INDY RED) Sept. 2015 ATV Of The Month
Mods: SuperWinch 3000 Winch - MotoAlliance Line Stopper - Glacier3 60" Plow - Polaris Rack Extenders - Polaris Bumpers - LowPro Shield - Polaris Hand Guards - Warning Debadge - 3Way Head Light (Relay) - Cabelas Mirrors - Wes Ind. Std Seat/Box - Kolpin Fuel Pack Jr - 26" Kenda BearClaw HTR Tires - HighLifter HD Springs - MotoAlliance Sirius 6" Pro LED Light Bar

2005 SPORTSMAN 400 (SONIC BLUE)
Mods: Warn 2500 Winch - MotoAlliance Line Stopper - Polaris Mid Shield - Wes Ind. Seat/Box - Shift Interlock Delete - Coleman Mirrors - Polaris Bumpers - 25" Kenda K590 Tires - PVC Spring Spacers

2014 RZR 570 EFI EPS LE TRAIL (WHITE LIGHTENING)
Mods: HarborFreight Badland 3500 Winch - MotoAlliance Winch Mount - MotoAlliance Line Stopper - Polaris Sport Roof - 1/2 Windshield - Warning Debadge - Rear View Mirror - Seat Adjuster - 26" Maxxis Tires - MotoAlliance Sirius 10" Pro LED Light Bar
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post #9 of 9 (permalink) Old 03-20-2017, 09:22 AM
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you might be slightly warmer, but there isn't enough of an insulation factor in paint to make much of a difference.

"There are no problems. There are only Solutions. It's your job to find the right one.

2007 Hawkeye 300 17HP of gutless glory
25" STI Black Diamond ATRs
Pure Polaris Deluxe front Brush guard
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Badlands 2500 lbs. winch w/remote and Kong winch saver.
Full Aluminum Skid plate and A-arm guards(custom built)
Pure Polaris Front rack extension
Quadworks Stage 1 power kit
  • K&N Highflow reusable filter
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