Author Topic: adjusted valves and changed spark plug  (Read 3389 times)

old geezer

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adjusted valves and changed spark plug
« on: March 15, 2012, 10:11:37 PM »
Well today I worked on my P 250S. I adjusted the valves. They were a little tight. Around .002. I set them on a tight .004. The original spark plug was in it so I put in an NGK iridium. The gap on the orginal was set at .035. The book calls for .027. I had emailed NGK about the gap on the iridium plug for my application and they said to put it at .027 as well.

It had not been starting right up and the idle was not the greatest. Now it starts right up and idles great.

The valves are not the easiest to get to but a lot of money was saved by doing the job myself.

zombie

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Re: adjusted valves and changed spark plug
« Reply #1 on: March 15, 2012, 11:30:11 PM »
Glad to hear it Scoot. It's soooo much better to do it yourself. You KNOW what was done.
"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

gregspeople250

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Re: adjusted valves and changed spark plug
« Reply #2 on: March 16, 2012, 03:52:55 PM »
I did the same a few months ago.  I enjoyed learning how to adjust the valves myself and the engine has run great for quite a few miles now.
Honda Elite 80 - SOLD
Yamaha Vino 125 - SOLD
Kymco People 250 - SOLD
Kymco Like 200i - SOLD
Vespa 250 GTS - SOLD
Piaggio BV350 - FUN! - SOLD
Buddy 170i - FUN! - SOLD
Honda Silverwing - SOLD
Yamaha TMAX - OUTSTANDING! - SOLD
Honda SH150 - SOLD
Yamaha SMAX - SOLD
Kymco AK550

old geezer

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Re: adjusted valves and changed spark plug
« Reply #3 on: March 16, 2012, 06:07:04 PM »
Well I have been turning wrenches for over 50 years but the problem is I've got old and lost a step or 2 and Kymco don't make things easy to get to.

I must have saved thousands over the years doing all my own mechanic work. I wonder where the heck it went to???

gregspeople250

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Re: adjusted valves and changed spark plug
« Reply #4 on: March 16, 2012, 06:37:56 PM »
I'm a desk jockey (Electrical Engineer) and enjoy using my hands and seeing if I can do anything really valuable!
Honda Elite 80 - SOLD
Yamaha Vino 125 - SOLD
Kymco People 250 - SOLD
Kymco Like 200i - SOLD
Vespa 250 GTS - SOLD
Piaggio BV350 - FUN! - SOLD
Buddy 170i - FUN! - SOLD
Honda Silverwing - SOLD
Yamaha TMAX - OUTSTANDING! - SOLD
Honda SH150 - SOLD
Yamaha SMAX - SOLD
Kymco AK550

old geezer

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Re: adjusted valves and changed spark plug
« Reply #5 on: March 16, 2012, 07:23:29 PM »
Yeah, I was a process engineer for General Electric back in the 70s.

slugrocket rob

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Re: adjusted valves and changed spark plug
« Reply #6 on: March 16, 2012, 07:43:20 PM »
yes, It feels great to do it yourself!!!

gregspeople250

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Re: adjusted valves and changed spark plug
« Reply #7 on: March 16, 2012, 09:39:46 PM »
Mistakes can be costly, so I just take my time and be sure things are torqued correctly.
Honda Elite 80 - SOLD
Yamaha Vino 125 - SOLD
Kymco People 250 - SOLD
Kymco Like 200i - SOLD
Vespa 250 GTS - SOLD
Piaggio BV350 - FUN! - SOLD
Buddy 170i - FUN! - SOLD
Honda Silverwing - SOLD
Yamaha TMAX - OUTSTANDING! - SOLD
Honda SH150 - SOLD
Yamaha SMAX - SOLD
Kymco AK550

zombie

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Re: adjusted valves and changed spark plug
« Reply #8 on: March 16, 2012, 11:05:03 PM »
Engineers eh! I would love to get a group together one day for cocktails. The catch is... They would have to service anything they designed before they get a drink. It is real easy for an engineer to forget that things need to be repaired, and putting the spark plug behind a compressor, under the front tire well does not get it.
"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

gregspeople250

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Re: adjusted valves and changed spark plug
« Reply #9 on: March 19, 2012, 08:58:11 PM »
We put it there because time studies show it saves our company time assembling the product.  The COMPANY doesn't care about the life of technicians, only the profits made!  LOL
Actually, I'm not a machine design engineer.  I consult in the thermal solutions world to OE manufacturers.
Honda Elite 80 - SOLD
Yamaha Vino 125 - SOLD
Kymco People 250 - SOLD
Kymco Like 200i - SOLD
Vespa 250 GTS - SOLD
Piaggio BV350 - FUN! - SOLD
Buddy 170i - FUN! - SOLD
Honda Silverwing - SOLD
Yamaha TMAX - OUTSTANDING! - SOLD
Honda SH150 - SOLD
Yamaha SMAX - SOLD
Kymco AK550

zombie

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Re: adjusted valves and changed spark plug
« Reply #10 on: March 19, 2012, 11:47:28 PM »
How do we fix Global Warming Mr. smart guy engineer?  Just messing w/ you.
I MOSTLY build/rebuild boats. I have found every company has the same motivation. $$$$$$$. Screw the new owner/techs.
That must be why I am always broke. Money doesn't float my boat. Water does.
"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

gregspeople250

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Re: adjusted valves and changed spark plug
« Reply #11 on: March 20, 2012, 04:55:27 PM »
Boats sound like a very fun obsession!
My obsession is engineering racing cars.  I like the varieties that go left and right and have to use their brakes to slow for several corners per lap.  This is an expensive  pursuit as well and it floats my personal boat.
Honda Elite 80 - SOLD
Yamaha Vino 125 - SOLD
Kymco People 250 - SOLD
Kymco Like 200i - SOLD
Vespa 250 GTS - SOLD
Piaggio BV350 - FUN! - SOLD
Buddy 170i - FUN! - SOLD
Honda Silverwing - SOLD
Yamaha TMAX - OUTSTANDING! - SOLD
Honda SH150 - SOLD
Yamaha SMAX - SOLD
Kymco AK550

zombie

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Re: adjusted valves and changed spark plug
« Reply #12 on: March 20, 2012, 10:04:27 PM »
COOL! Same "boat" different road... If I can gain 2-3 seconds anywhere it is a MAJOR accomplishment. It's always fun doing what can't be done.
"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

gregspeople250

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Re: adjusted valves and changed spark plug
« Reply #13 on: March 21, 2012, 03:51:39 PM »
Zombie,
Agreed, +1!
Honda Elite 80 - SOLD
Yamaha Vino 125 - SOLD
Kymco People 250 - SOLD
Kymco Like 200i - SOLD
Vespa 250 GTS - SOLD
Piaggio BV350 - FUN! - SOLD
Buddy 170i - FUN! - SOLD
Honda Silverwing - SOLD
Yamaha TMAX - OUTSTANDING! - SOLD
Honda SH150 - SOLD
Yamaha SMAX - SOLD
Kymco AK550

ispud

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Re: adjusted valves and changed spark plug
« Reply #14 on: May 16, 2012, 09:39:12 PM »
Now that I know how to get the plastic off this job will be much easier. (P S 250).  I have done it twice with plastic on - both times the setting were very close to what they were supposed to be, if not right on.  Definitely not a job to be rushed on.

:)>>
:)>>

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