KymcoForum.com

Scooters - 125 to 300 => LIKE 200i => Topic started by: renko on March 11, 2013, 03:24:33 AM

Title: Faint Pinging Sound
Post by: renko on March 11, 2013, 03:24:33 AM

Have recently noticed a light pinging sound starting at 40 mph or so. Its hard to hear over the normal engine noise but it seems to be getting more distinct. Its time for another valve check/adjustment. Could this sound be caused by by the valves? The Like has about 9000 miles on it now. Oil level is good and the spark plug is new.

Title: Re: Faint Pinging Sound
Post by: Vivo on March 11, 2013, 05:42:34 AM

Several factors contribute to pinging.. one is too low octane rating... start with filling with a higher octane...

Title: Re: Faint Pinging Sound
Post by: renko on March 22, 2013, 04:49:01 PM

Thanks Vivo,
Had been using regular gas lately so filled up with premium. The sound continued but may not is ridden far enough to make sure the premium was being burned. After the valve adjustment the sound is gone and the bike is running well.

Title: Re: Faint Pinging Sound
Post by: CROSSBOLT on March 22, 2013, 06:59:55 PM

Yeah, check valve clearances.

Karl

Title: Re: Faint Pinging Sound
Post by: TroutBum on March 24, 2013, 03:43:23 AM

Did you adjust the valves yourself? If so, whats the gap measurement? I have started to work on my Like as the dealer cost is crazy high. It would only take about 3 to 4 years at my current riding pace before the service cost equals the cost of the scooter.

Title: Re: Faint Pinging Sound
Post by: tclhb on March 31, 2013, 02:34:42 AM

From this forum the exhaust and intake valve clearance is 0.004"
http://www.kymcoforum.com/index.php?topic=6384.0 (http://www.kymcoforum.com/index.php?topic=6384.0)

Title: Re: Faint Pinging Sound
Post by: tclhb on March 31, 2013, 02:38:50 AM

I have looked on YouTube and the forum for how to instructions. I would like to attempt it myself. I saw a scooter valve adjustment video where the cover was accessed by removing the seat and plastic piece.

Title: Re: Faint Pinging Sound
Post by: tclhb on March 31, 2013, 02:42:30 AM

Regarding fuel, the manual says 91 octane.

Title: Re: Faint Pinging Sound
Post by: MotoRandy123 on March 31, 2013, 10:59:21 AM

Here's the valve spec from the service manual;

(http://i1061.photobucket.com/albums/t478/MotoRandy123/200iValves_zpse47abeb7.jpg)

Title: Re: Faint Pinging Sound
Post by: tclhb on March 31, 2013, 03:59:35 PM

Randy, where did you get the manual? How much was the cost? Are the instructions good enough for someone who does their own oil changes and brakes on a car? Thanks!

Title: Re: Faint Pinging Sound
Post by: MotoRandy123 on March 31, 2013, 04:26:03 PM

Look in this topic for a link to it...
http://www.kymcoforum.com/index.php?topic=8381.0 (http://www.kymcoforum.com/index.php?topic=8381.0)

Title: Re: Faint Pinging Sound
Post by: tclhb on March 31, 2013, 04:49:18 PM

Oh cool! I saw that thread but didn't notice there was a link. I'll fire up the computer and see if I can download it. Thank you Randy!

Title: Re: Faint Pinging Sound
Post by: CROSSBOLT on April 04, 2013, 04:23:49 PM

tclhb, the owner's manual says 91 octane but some of the stickers on the Met-in tub say 87 R+M/2. 87 octane works in these bikes. Use non-ethanol fuel if you can get it.

Karl

Title: Re: Faint Pinging Sound
Post by: tclhb on April 04, 2013, 11:41:01 PM

Thanks Karl!

Title: Re: Faint Pinging Sound
Post by: Vivo on April 05, 2013, 02:04:54 AM

Quote from: CROSSBOLT on April 04, 2013, 04:23:49 PM

tclhb, the owner's manual says 91 octane but some of the stickers on the Met-in tub say 87 R+M/2. 87 octane works in these bikes. Use non-ethanol fuel if you can get it.

Karl

Karl, 87 octane on pump stickers may not be the same as 87 R+M/2....   87 Octane may mean Octane (RON) Research Octane Number....   while 87 R+M/2 is Research Octane Number plus Motor Octane Number divided by 2.      87 R+M/2 may be a higher octane fuel than the 87 Octane (RON) or vice versa...  Moreover, 87 AKI  is the same as 87 R+M/2....

Title: Re: Faint Pinging Sound
Post by: CROSSBOLT on April 05, 2013, 05:46:21 PM

My bad! I assumed he was in the US. Thanks for pointing that out as you are right. As usual!

Karl

Title: Re: Faint Pinging Sound
Post by: Charlie P on April 05, 2013, 09:15:27 PM

Fortunately here in the Dallas/Fort Worth, Tex (USA) area most gas pumps display  the "(R+M)/2 = octane ".  You can know how they say they computed the octane.