Rear shock pressure ??? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 16 (permalink) Old 04-05-2010, 07:10 AM Thread Starter
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Rear shock pressure ???

What should I set my rear shock/springs at ? Im 220 pounds rarely ride 2 up no luggage bags.
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post #2 of 16 (permalink) Old 04-05-2010, 09:21 AM
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First off, you should adjust shock pressure with a hand pump so you don't blow out the inside of the shock with high pressure hose. That said, usually you can take about 10% of your cargo weight (including yourself) and make that your shock pressure. In your case at 220, I'd put around 25 lbs in them, giving you a little extra in case you carry any extra stuff once in a while. Its really tricky to get them right on the dot without a special hand pump with an inline check valve that can be closed when the pressure is right on, without letting all the pressure out taking the pump off the shock valve. Progressive makes one that costs around $50 and someone on here might have one you can borrow, maybe...

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post #3 of 16 (permalink) Old 04-05-2010, 04:43 PM
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If you know a mountain biker, they might have a shock pump you can borrow. If you were closer, I'd say drop by. ;-)
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post #4 of 16 (permalink) Old 04-05-2010, 05:57 PM
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Set the pressure to fit your comfort and ride style, using the hints above. It's a personal thing. It's not like you're fine tuning 'Busa for Laguna Seca
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post #5 of 16 (permalink) Old 04-06-2010, 10:37 PM
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Recommended operating pressure according to the manual is 0 psi. I weigh 200, and carry about 40 pounds of stuff in 2 saddlebags and a T-Bag. I have my preload set on #5 position, but have never put air in the shocks. Just a tiny bit to much will blow the seals. There is a gauge that comes in the original tool kit for that purpose, but it is such a small amount of air that you will change the pressure significantly just by checking it. Jerry.

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post #6 of 16 (permalink) Old 04-20-2010, 01:59 PM
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Quote:
Originally Posted by VN750Rider/Jerry View Post
Recommended operating pressure according to the manual is 0 psi. I weigh 200, and carry about 40 pounds of stuff in 2 saddlebags and a T-Bag. I have my preload set on #5 position, but have never put air in the shocks. Just a tiny bit to much will blow the seals. There is a gauge that comes in the original tool kit for that purpose, but it is such a small amount of air that you will change the pressure significantly just by checking it. Jerry.
I think you have a typo Jerry. I believe all the rear shocks only have 4 preload positions. At least there are only 4 on my bike.

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post #7 of 16 (permalink) Old 04-20-2010, 03:40 PM
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I'm 250 and run 0 psi cuz I like my ride soft.

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post #8 of 16 (permalink) Old 04-20-2010, 03:53 PM
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I took my 750 for about a 500 mile weekend ride down around Leakey, on the twisted sisters back when I first got it, and at every cattle guard I was bottoming out with my 265 cheeseburgers, and the added luggage I was hauling on the trip. When I got home I painstakingly aired both my shocks up to about 26-28 lbs with a hand pump and it really made the ride a ton better. It is a real pain in the southside to do, but it made a huge difference. With the special shock pump Progressive makes, it would be a cinch, but who wants to spend fifty bucks on something you'll use one time and hang on a nail in your garage? I've got a small hand pump that I keep on my mountain bike that worked fine for this, aside from the instant loss of pressure if you fumble with the valve getting it on and off!

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post #9 of 16 (permalink) Old 04-20-2010, 06:14 PM
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I know we don't have much room, but sure would be good to have a balance tube between our shocks. A on board kompressor is nice too.

DT

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post #10 of 16 (permalink) Old 04-20-2010, 08:07 PM
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I'm pretty sure some have done that with a cross over tube even on this forum. Maybe someone will enlighten you soon.

Fergy
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2002 VN1500 Classic
Spline Lube Procedure, with photos, R/R Relocation and Coil Mod
Rusty Tank Cleaning!
Electrical Fault Finding Flowchart
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