Increased power after valve adjustment? - Kawasaki Versys Forum
 
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post #1 of 10 (permalink) Old 03-23-2012, 02:33 PM Thread Starter
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Increased power after valve adjustment?

Hi everyone,

I have a nice problem. I went to my dealer for a 25000km tune up for valve adjustment. He did also spark plugs (17$ each, ouch!) and cleaned air filter.

I don't think I have changed anything in my riding habits but it seems that the bike has noticeably more power than last year, when I stored it for winter. It looks like my front wheel is suddenly much lighter

I probably forgot after 4 months of riding abstinence how good was the versys.
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post #2 of 10 (permalink) Old 03-23-2012, 07:38 PM
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I just did my valves (literally as I buttoned up about 30 minutes ago) and the only real thing I have noticed so far is a very slight valve sound. This was expected for me though as I adjusted out ti the looser end of the spectrum.

I also noticed I had to adjust the idle though to keep it from revving to low and dying... odd as I have had to do that before on previous bikes...
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post #3 of 10 (permalink) Old 03-23-2012, 07:49 PM
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What were the valve clearances at when they were checked upon adjustment?
New spark plug$ made a difference as well.

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post #4 of 10 (permalink) Old 03-23-2012, 07:58 PM
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17.3k

In on piston one: 14 - 16
In on piston two: 15 - 15
Ex on piston one: 20 - 21
Ex on piston two: 21 - 20

I adjusted the ins to between 19 and 21 and the example to 28-30. That's as accurate as the shims I have would allow and I didn't feel much like working them down to equivalent sizes :-)

Spark plugs were changed about 3k ago with new densos.
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post #5 of 10 (permalink) Old 03-23-2012, 08:00 PM
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Only way I could see burnedstars scenarioyou is if those valves were e
EXTREMELY loose before going in...

Course, could be in your head if its been a while
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post #6 of 10 (permalink) Old 03-23-2012, 08:35 PM
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I've never noticed any diff after adjusting the valves, but some minor improvement after new plugs.

Michael
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post #7 of 10 (permalink) Old 03-23-2012, 10:01 PM Thread Starter
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Quote:
Originally Posted by Psalm11_6 View Post
...
Course, could be in your head if its been a while
Most likely
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post #8 of 10 (permalink) Old 03-23-2012, 10:43 PM
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BTW, a little off topic, did any of you who did the valves, also do a Throttle Body Balancing?

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post #9 of 10 (permalink) Old 03-24-2012, 06:01 AM
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Quote:
Originally Posted by burnedstar View Post
Hi everyone,

I have a nice problem. I went to my dealer for a 25000km tune up for valve adjustment. He did also spark plugs (17$ each, ouch!) and cleaned air filter.

I don't think I have changed anything in my riding habits but it seems that the bike has noticeably more power than last year, when I stored it for winter. It looks like my front wheel is suddenly much lighter

I probably forgot after 4 months of riding abstinence how good was the versys.
the main difference would of been throttle bodies adjusted and tuned, that is standard in a tune and service, that's where the power gain would come from.
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post #10 of 10 (permalink) Old 03-24-2012, 09:26 AM
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Originally Posted by 2daMax View Post
BTW, a little off topic, did any of you who did the valves, also do a Throttle Body Balancing?
I did also balance my throttle bodies' vacuum balancing, which is done at 1300 rpm idle. It does improve idle quality and throttle response... Burnedstar didn't mention that it was done. Most of his restored power came from new spark plugs, beside air filter cleaning and valve clearance adjustment.
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