broken temp sender - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 7 (permalink) Old 01-14-2007, 12:27 PM Thread Starter
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Unhappy broken temp sender

ok you know the sensor on the bottom of the radiator, yeah I broke it. I tried to rewire a switch, it draws (volts) way to much, put in a fuse, still draws(volts)way to much. So I'm thinking replace the sender. 80 freaken dollars is way to much for me. any Ideas????

I also think I'm running a little lean, that could be helping in the over heating deptartment. is there more then the one knob on the carb to help with the idle mixture, My engine has a tendancy to idle higher at hotter temps, and I'm always fumbling around with that nob. Help me gain my sanity.
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post #2 of 7 (permalink) Old 01-30-2007, 05:11 PM
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More than likely a hot engine idling faster is pointing to a vacuum leak. Especially if you think you're running lean (vacuum leaks cause lean running conditions) I'd be searching for a leak. If the hot engine seems to cause a vacuum leak, (and interestingly enough, lean conditions cause hotter running engines) it could point to your carb mounts, as the engine heats up, things expand and maybe a leak opens up with the expansion of parts... It's worth checking out.

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post #3 of 7 (permalink) Old 01-31-2007, 04:28 AM
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Quote:
Originally Posted by cisco View Post
My engine has a tendancy to idle higher at hotter temps, and I'm always fumbling around with that nob. Help me gain my sanity.

Usually, (if my bike wasn't down for repairs) I would have to adjust the idle up a bit at first starting the bike and once it was warmed up I'd have to adjust it down some.
So, if it's not a major change in the idle rpm's (maybe 3-5 hundred or so), I'd say you're OK with adjusting till warmed up. (atleast for me, it's normal operating procedure)

As far as the sensor, WOW $80 !! You are talking about the fan sensor switch, right?
Ron Ayers has it for $71.60 shipping included. Still not cheap, but cheaper than $80.


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post #4 of 7 (permalink) Old 02-05-2007, 01:34 AM
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I can sympathise with you regarding the cost of replacing the sensor. The connector on mine corroded through & snapped off a year or so ago & it cost me around 45 (about $85). I often wonder how Kawasaki justify the cost of their spares. I was once told that they make little profit on the new bikes so they get the money back by cranking up the price of the spares. Don't know how true that is but i'm inclined to believe it.
I replaced the temperature sensor on my Volvo station wagon a couple years ago & it was a fifth of the price of the bike one - and that was at the main dealer!

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post #5 of 7 (permalink) Old 02-05-2007, 02:11 AM
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Quote:
Originally Posted by Ernie View Post
I was once told that they make little profit on the new bikes so they get the money back by cranking up the price of the spares. Don't know how true that is but i'm inclined to believe it.
I think I'd believe that if the bike wasn't 20 years old.
After the first 5 maybe 8 years at very most, all the tooling for the thing had to have been paid for by profits made to that point.
Seems more like they know we need the parts, they know only they have them, so they know they can charge alot for them. Unlike auto parts, which have more than a few different companies that make aftermarket replacement parts, so the prices are cheaper.

Atleast that's how I see it.


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post #6 of 7 (permalink) Old 02-08-2007, 10:03 AM
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Has anyone tried non-Kawa replacements? When I was looking for an adapter to fit my shop oil pressure gauge to the bike, the parts counter guy at the local Meryl's Auto Supply showed me parts book with about a zillion pressure sensors. They were categorized by pressure range and thread size, not just by application. I bet there's a similar book for temperature sending units.

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post #7 of 7 (permalink) Old 02-09-2007, 10:20 AM
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Hey! There's one on Ebay right now with a Buy It Now price of $12.50. See item number 280080085116.

Darrel
'03 Vulcan 750 (90k miles)
-Corbin Seat
-V-Force Windshield
-LeatherLyke Touring Bags
-Chrome Luggage Rack
-Headlight Modulator
-Brakelight Flasher
-MF Battery
-Heads-Up Voltage Monitor
-Replaced Stator (9,000 and 16,000 mi.)
-Oil-cooled Stator Mod (photos)
-Replaced and Relocated R/R
-Greased rear splines
-Fused Stator (photos)
-Metzeler ME880 Marathon 170/80-15 (Rear), 110/90-19 (Front)
-TOC MCCTs installed
-Headlight Relays
SOLD - 2013

Last edited by darrelc5; 02-09-2007 at 02:52 PM.
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