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post #1 of 6 (permalink) Old 02-19-2012, 12:49 PM Thread Starter
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Hello all, I own a 1990 Kawasaki Vulcan 750. It rides great, gets very good gas mileage, and very comfortable. Question what can cause my bike to run hot?
I drained the fluids and put new fluids in, it ran good for awhile but it's still running hot. What may be causing it to overheat?

This is a very good website, never knew things like this were here and for free. Well I appreciate the services Iv;e gotten from here and hope to learn more about Vulcan. I gonna have to upload some pics soon. Hope to share some experiences with you all .

Thanks

Mark

Last edited by [email protected]; 02-19-2012 at 01:01 PM.
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post #2 of 6 (permalink) Old 02-19-2012, 01:01 PM
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Welcome Mark, did you read the verses yet. Can find a lot there. Can be a variety of things, cloged radiator, fan not coming on, stuck thermostat, water pump, might even be a air bubble in the system. Good luck, am sure you will find answers here. RB

04-3,200 miles bought July 2011 with 928 miles. Loaded with acessories to many to list here, see my albums for more details! I also make a custom tank bib specific for the 750 if anyone is interested, ck my albums for some pics.
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post #3 of 6 (permalink) Old 02-19-2012, 01:04 PM Thread Starter
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Thanks for the response and no I haven't still getting used to the site. But that gives me a better ideal what it could be. The fan does still come on so that's a good thing but I'm gonna check out. I appreciate your tips.
 
post #4 of 6 (permalink) Old 02-19-2012, 01:29 PM
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Hi Mark and welcome to the forum. Tell us where you're from and above all ride safe.

2003 Wine/Gray VN750 bought in 2005 w/2000 Miles
LED Tail/Brakelight & License Plate Light;Chrome Inspection Sticker Plate ;Battery Charging Quick Plug;Kuryakyn LED Battery Voltmeter;Throttle Rocker Palm Rest;Optronics Driving Lamps;KnifeMaker Floor Boards;Halogen Headlamp Bulb;OEM Engine Guard;Iridium Spark Plugs;OEM Luggage rack;Stebel Air Horn;Handlebar Clock; Handlebar Thermometer; Sealed Battery; Marbled; Leather Grip Covers; Rectangular Mirrors

~VROC~ # 389
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post #5 of 6 (permalink) Old 02-19-2012, 02:18 PM
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If the problem is not thermostat or radiator related you might want to pull the sparkplugs. If they are white the engine is running too lean and will run hot. The plugs should be a tan color. If they are white you have to turn out you air/fuel mixture screws to 2 1/2 turns, maybe to 3 turns.

JM2001

" Loud Pipes Risk Rights "

2001 Vulcan 750
marbled
TOC upgrade on ACCT
Air/fuel mixture set to 2 1/2 out
rectifier relocated
splines lubed
iridiums
decals removed
upgraded mirrors
Pic up coil mod done
degoated
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Upgraded Mosfet rectifier
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post #6 of 6 (permalink) Old 02-19-2012, 02:28 PM
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Quote:
Originally Posted by [email protected] View Post
Hello all, I own a 1990 Kawasaki Vulcan 750. It rides great, gets very good gas mileage, and very comfortable. Question what can cause my bike to run hot?
I drained the fluids and put new fluids in, it ran good for awhile but it's still running hot. What may be causing it to overheat?

This is a very good website, never knew things like this were here and for free. Well I appreciate the services Iv;e gotten from here and hope to learn more about Vulcan. I gonna have to upload some pics soon. Hope to share some experiences with you all .

Thanks

Mark
Bearing in mind you have changed the fluids it maybe that the cooling system has a airlock in it try bleeding the system there is a bleed nipple under the front of the gas tank, also check the oil level and the thermostat also under the front of the tank
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