New guy with little knowledge. - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 16 (permalink) Old 10-01-2016, 07:57 AM Thread Starter
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New guy with little knowledge.

So I'm pretty new in the bike world, this question maybe dumb but I gotta ask. How do I know what shocks are right for my bike. Never replaced them and just got the bike after 10 years of sitting. When I ride and hit s bump I feel like my back is gonna break. There is no suspension in the shocks at all is what it feels like. So I want to get new shocks but have no idea what I'm doing. Help?
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post #2 of 16 (permalink) Old 10-01-2016, 07:07 PM
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Shocks are sold by length, spring rate, and what type of mount your bike uses.

Most Japanese bikes use "eye" mounts...meaning each end of the shock has an "eye" that slides over a frame mounted stud.
Depending on what you weigh, what extra weight you plan on adding, and if you have a passenger or not, is how you figure out what spring rate you will need.
Most aftermarket shock makers have guides to help you on what spring to use.

The stock Vulcan 750 had 12.5" length shocks (measured eye center to eye center)

So, first, how much do you and whatever luggage you plan on adding weigh? What type of roads do you have to deal with? And, most importantly, how much do you want to spend. Decent shocks can cost from $200 up to $700.

I found a pair of slightly used Progressive 412 shocks for about $120. But new they are about twice that. Check out Progressive, Work Performance, and Hagon's web sites to see what's available and at what cost.

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post #3 of 16 (permalink) Old 10-01-2016, 08:57 PM
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what is the adjustable damper on the top set on?

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lowered with progessive 412 10" shocks
rejetted for K/N Pods part#rc 2340
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post #4 of 16 (permalink) Old 10-01-2016, 09:42 PM Thread Starter
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So i can't see what the damper is set on wether 1-2-3-4 I can't see those marking, Also, I have no idea if these even have oil and air in them. I feel every bump. All together I think I will load it up to about 250 lbs. it's so damn stiff..
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post #5 of 16 (permalink) Old 10-01-2016, 10:28 PM
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try turning the top to see if it moves.

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lowered with progessive 412 10" shocks
rejetted for K/N Pods part#rc 2340
sportster seat

'I didn't lose my mind.i gave it away

BRING BACK WOLFIE."Peace and Carrots"RIP
"And I'm free...as a bird"John Lennon Free as a Bird
"I only carry when I have my pants on"Joe Robinson RIP aka Old Dog
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post #6 of 16 (permalink) Old 10-01-2016, 10:34 PM
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https://goo.gl/images/Qx8wcz
check this pic.shows the top.also check how much air pressure is in them.maybe they're not stock? take a pic if ya got time

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1986/5 Vn700/750 Frankenfook cross eyed bitch "Mellisa Fayhe"
I am a BIKER and i'm proud.FREEBIRDS MC CENTRAL NY

lowered with progessive 412 10" shocks
rejetted for K/N Pods part#rc 2340
sportster seat

'I didn't lose my mind.i gave it away

BRING BACK WOLFIE."Peace and Carrots"RIP
"And I'm free...as a bird"John Lennon Free as a Bird
"I only carry when I have my pants on"Joe Robinson RIP aka Old Dog
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post #7 of 16 (permalink) Old 10-02-2016, 03:46 PM Thread Starter
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They are stock, I was reading other forums that speculate it could just be the springs and that I do not need to add air. Also if I do refill the rear shocks with oil, what oil do I or should I use
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post #8 of 16 (permalink) Old 10-02-2016, 10:53 PM
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I said to check the air pressure to see if there's too much air,which will make it stiff.as far as I know Kawasaki only made one spring for the 750.haven't heard of different spring rates.they might have,but I don't think so.

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1986/5 Vn700/750 Frankenfook cross eyed bitch "Mellisa Fayhe"
I am a BIKER and i'm proud.FREEBIRDS MC CENTRAL NY

lowered with progessive 412 10" shocks
rejetted for K/N Pods part#rc 2340
sportster seat

'I didn't lose my mind.i gave it away

BRING BACK WOLFIE."Peace and Carrots"RIP
"And I'm free...as a bird"John Lennon Free as a Bird
"I only carry when I have my pants on"Joe Robinson RIP aka Old Dog
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post #9 of 16 (permalink) Old 10-03-2016, 04:46 AM Thread Starter
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Did oil change and did not add air to shocks. Haven't rode it yet to test it out because I'm having battery problems
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post #10 of 16 (permalink) Old 10-03-2016, 08:23 AM
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Quote:
Originally Posted by Matthew Wellington View Post
Did oil change and did not add air to shocks. Haven't rode it yet to test it out because I'm having battery problems
uh oh...

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