Scootworks pulley for Vulcan 900 - too heavy? - Kawasaki Motorcycle Forums
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post #1 of 105 (permalink) Old 05-23-2008, 04:07 PM Thread Starter
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Scootworks pulley for Vulcan 900 - too heavy?

Hi,


I know that there are few people here who installed Scootworks' front pulley on Vulcan 900s.
I just received mine and I was surprised how heavy this thing is - felt like 20 pounds at least.
One question for thos who use this pulley - any problems due to its weight?
I see that the original one has some metal removed in the middle to reduce weight; any feedback on mounting something so heavy on the transmission? Should I try to find a shop and drill some wholes in this thing? It seems it is made out of solid metal.

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Somerset
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post #2 of 105 (permalink) Old 05-23-2008, 04:09 PM
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it definitely heavy....I'm not sure that i follow you on the weight thing...not sure that it makes that much difference...

Many ppl have installed it and havent heard any weight related problems...

Chris
Black 2011 1700 Vaquero
Black 2007 900 Custom (sold)
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post #3 of 105 (permalink) Old 05-23-2008, 04:24 PM Thread Starter
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I assume that all who installed one, got their original pulleys back.
Were they that heavy as well?
As I said, from the photos from Scootworks intructions, the original pulley seems machined to reduce weight.
My logic is that putting 10 extra pounds on that axel is probably not going to improve things and in general can shorten the transmission life or even break the axel when I hit some pothole.

Am I being too paranoid?

S.
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post #4 of 105 (permalink) Old 05-23-2008, 04:33 PM
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No thats actually a good observation. The pulley for the 900's isn't that old so that might be something to let scootworks know about. That could just be something they overlooked when building and designing that pulley. You should weigh the two and find the difference. Having it machined out wouldn't hurt anything, except maybe a return to scootworks. Most places don't like returned parts that are altered.
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post #5 of 105 (permalink) Old 05-23-2008, 05:16 PM Thread Starter
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I just send them an e-mail, we'll see what they are going to say.

S.
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post #6 of 105 (permalink) Old 05-23-2008, 05:41 PM
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Originally Posted by Okie Marine View Post
No thats actually a good observation. The pulley for the 900's isn't that old so that might be something to let scootworks know about. That could just be something they overlooked when building and designing that pulley. You should weigh the two and find the difference. Having it machined out wouldn't hurt anything, except maybe a return to scootworks. Most places don't like returned parts that are altered.
if ya have it machined, id think you would want to make sure its balanced, having something out of balance at high rpms is gonna cause alot of vibration and more than likely ruin your wheel bearings
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post #7 of 105 (permalink) Old 05-23-2008, 07:20 PM
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Quote:
Originally Posted by Somerset View Post
I assume that all who installed one, got their original pulleys back.
Were they that heavy as well?
As I said, from the photos from Scootworks intructions, the original pulley seems machined to reduce weight.
My logic is that putting 10 extra pounds on that axel is probably not going to improve things and in general can shorten the transmission life or even break the axel when I hit some pothole.

Am I being too paranoid?

S.
Great Question,....as Kawasaki designed the 900 exactly with the original front pulley in mind, and the motor turning over the correct amount of revs to suit the pulley....wonder what long term damage "if any?" maybe done to the motor.....I doubt if scootworks Put in as much money or time to do full test as what Kawasaki did when designing the 900?....Just my opinion
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post #8 of 105 (permalink) Old 05-23-2008, 08:32 PM
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dang, I was gettin' ready to order one, but now I need to wait to find out about this...!

I just thought of something else, does installing the front pulley from scootworks void your warranty or extended warranty?
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post #9 of 105 (permalink) Old 05-23-2008, 08:40 PM Thread Starter
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Great Question,....as Kawasaki designed the 900 exactly with the original front pulley in mind, and the motor turning over the correct amount of revs to suit the pulley....wonder what long term damage "if any?" maybe done to the motor.....I doubt if scootworks Put in as much money or time to do full test as what Kawasaki did when designing the 900?....Just my opinion
The revs change do not bother me that much, after all this is what I am trying to change and people do this to chain bikes as well.
But the extra weight is bothering me a lot as an engineer.

S.
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post #10 of 105 (permalink) Old 05-23-2008, 10:45 PM
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[QUOTE=Somerset;1124847]The revs change do not bother me that much, after all this is what I am trying to change and people do this to chain bikes as well.
But the extra weight is bothering me a lot as an engineer.

S.[/QUOT


The weight thing would be a real issue for me, I run Larger tyres On my 4x4 and Ive had to Change the wheel Bearings due to the added stress {over time} to the Bearings ......so It would be Interesting to see what will happen after awhile to the shaft bearing that the pulley sits on
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