KymcoForum.com
Scooters - 50cc => Agility 50 => Topic started by: wordslinger on December 20, 2009, 01:13:44 AM
-
...after about 500 miles...
..tell me what you see??
-
May be just a TINY bit on the lean side, but really not bad at all. Hard to tell from the photo, does the tan ash rub off or is it set into the ceramic? If it is set I would say you pretty well have it dialed in.
-
...the tan will not rub off...and this is with my 105 jet...(1.05mm)
-
Sounds pretty good! Take a look down inside the tip too see if it as clean. If it plain white you could go 1 step colder on the plug. That would be 1 number higher. It's all about getting the right "burn" temp. Looks like you have the right mixture. You do want that tan to go all the way to the casing.
-
..i'm looking inside the tip with a bright light and a magnifying glass...it's white all the way to the ceramic base...
..should the ceramic b tan all the way down, after 500 miles, or will it be progressive?
-
For whatever reason that area is called the "fire ring" It should get darker, (still tan) but darker. The fact that it is white is showing retained heat burning off all deposits. This can lead to detonation. If you run "cheap" gas, using Hi test will help solve that. If you are using Hi test a colder plug by 1 step will prevent it. Looks like a good mix though. It would be very hard to dial jets in any better, you just have to bring down the temp. a little. I have a 7 series plug instead of 8 because i run rich on the 2t I think you could run cooler, and be perfect for a 4t
-
..this is a NGK C7HSA...you reckon I should try the C8HSA?
..I always run Shell V-Power!! 93 octane..
..I think a dude i was talking to about plugs, on one of my searches for the elusive MASS IRIDIUM!! suggested that to me once before...
-
Most certainly. Check that after 100 miles or so, then again after 500. I think you will see it tan from top to bottom
-
I would agree that your plugs looks almost perfect! Just possibly a tiny bit lean. I'm a bit curious, but I bet going to an "8" would work out well! It looks like the tip is near perfect, but fades to a slightly lean condition further down. Going one step colder on the plug seems to be a good solution!
-
...wll, i'm headin out right now to get me the C8HSA....
..awaiting MASS IRIDIUM!!!...
-
That looks lean to me I like mine to be a darker brown on the ceramic. Interesting.
-
Mass Iridium!!! Good deal, I would just pull the plug out often and check it. If anything, the colder plug should just foul easier so no risk of damaging anything! Good luck!
-
Hey the "gangs" all here... Happy Holidays Guys!!!!!
-
Right back at ya! ;)
-
...HELL YEAH!!!..
Merry Christmas Everybody!!
-
(http://members.home.nl/van.raak/NaughtyHappyHolidays.gif)
-
...DANG....
-
OH YEAH! I like your style Doc! Happy Holiday Bro...
-
Just got done wrapping some presents and drinking some eggnog. That sh** is not so good :)
backatcha guys!
-
Do you prefer more Egg or Nog? I'm a Nogger myself...
-
Booze :o 8)
-
Pierce on Earth
-
...gaaack...eggnog...can't stand that stuff....
-
looks like a perfectly working plug to me.
-
...bougt me the C8HSA plug and installed it at the parts store...
..wow...i never woulda thought that a plug would make such a difference...
..much smoother running, and the little hesitation i'd been getting under hard throttle acceleration went away completely...
..thanx guys!!!!!!!
-
Cool Beans! That hesitation may have been due to a little pre-detonation. You will probally see a few more mpg as well. Same thing happened when I went to a hotter plug. Response improved, and i get closer to 42-43 mpg vs 35-36. Once again it's the tiniest little things that make a difference in these small engines.