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Post by onewheeldrive on Mar 18, 2015 22:22:33 GMT -5
This plug has been in for about 2,000km, it's not your typical new plug reading. I want to know what you think about the very end of the ground strap-- It doesn't look melted, just "frayed" or eroded away a tad. I need other opinions on it (I'm no plug guru)-- I think it's leaner than what it should be. What do you think, if anything? Give me a sec with the pic.
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Post by onewheeldrive on Mar 18, 2015 22:45:22 GMT -5
Here:  |
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Post by lain on Mar 18, 2015 22:54:52 GMT -5
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Post by onewheeldrive on Mar 18, 2015 23:00:54 GMT -5
It is still the cheap knock off plug that came with it that appears to be the equivalent to the NGKc7hsa--- which I've had for quite awhile and am just now about to put it in.
It looks a bit greyer to me than what I thought it should be?
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Post by geh3333 on Mar 19, 2015 0:58:51 GMT -5
TBA it doesn't look too bad . you have the darker ring around the end of the threads and the electrode is brownish. Recently someone posted a pic of a plug that had a whitish ring and a mostly white electrode. After that many miles the electrode should not be white. Your not too rich and it doesn't seems to be lean.
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Post by ramblinman on Mar 19, 2015 1:42:33 GMT -5
plug isn't melted so looks fine to me.  in all seriousness everyones monitor is different so gonna be hard for us to tell the color. look at it in sunlight to get a better idea of the true color but really i think it's fine. plug should be the first thing to melt and it's still intact. of course if those were all short trips then...  It looks a bit greyer to me than what I thought it should be? i would probably go up a size if i was planning a long trip. |
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Post by onewheeldrive on Mar 19, 2015 14:00:05 GMT -5
Yeah I don't take super long trips usually. The most, usually, is about 10 miles one way to work and back (about 20 round trip), with some riding around town everyday.
Got thinking twice about stock jets and stuff. I have a 72cc with a 78 main and the nozzle removed from the airbox. Whatever works, lol.
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Post by lain on Mar 19, 2015 14:23:48 GMT -5
Yeah I don't take super long trips usually. The most, usually, is about 10 miles one way to work and back (about 20 round trip), with some riding around town everyday. Got thinking twice about stock jets and stuff. I have a 72cc with a 78 main and the nozzle removed from the airbox. Whatever works, lol. Well whatever you are running is running great as far as I can tell by only looking at the spark plug. Not sure if my screen or the pic is blurred but is the end of the negative electrode warped or rounded? Or is that just deposit? You should clean it up either way, I clean my plugs up with a wire brush then finish it off with a tooth brush and paper towel. |
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Post by onewheeldrive on Mar 19, 2015 14:44:05 GMT -5
That was my concern-- the ground strap is a tad noticibly shorter than other plugs that I've had. I can put a better pic up here soon. Just looks disintegrated at the very end.
I started cutting the threads off last night, so if anyone was wondering when they see the pic, lol.
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Post by onewheeldrive on Mar 19, 2015 15:32:20 GMT -5
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Post by lain on Mar 19, 2015 15:46:31 GMT -5
Yeah, it does look a little short, but also looks a little like the end just got bigger and shorter from heat expansion. I wouldn't be too concerned unless it happened sooner. 2000 km is a lot of distance, plus you were running the engine when it wasn't moving as well lol. |
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Post by onewheeldrive on Mar 19, 2015 16:13:50 GMT -5
I put more miles on that stock plug than originally thought-- it's closer to 4,500km. I took pics of my odometer during oil changes and looked back. Quite unusual, normally I put 2 new ones on a year.
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Post by lain on Mar 19, 2015 16:15:38 GMT -5
I put more miles on that stock plug than originally thought-- it's closer to 4,500km. I took pics of my odometer during oil changes and looked back. Quite unusual, normally I put 2 new ones on a year. Well, that's a lot lol. I normally change mine every few months regardless of condition and keep them in boxes in the condition they came out at to keep tabs on the engine condition over time. |
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Post by hillbillybob on Mar 23, 2015 6:09:51 GMT -5
I put more miles on that stock plug than originally thought-- it's closer to 4,500km. I took pics of my odometer during oil changes and looked back. Quite unusual, normally I put 2 new ones on a year. My scooter came in the shipping crate with a NGK C7HSA plug. That same plug is still in there, after 3 seasons of riding.....about to start season 4, if we can get some of this snow melted. With 5,800 miles operated, which is more than twice as much as 4500km, I have no plans on changing it until at least next year. Scooter starts and runs great, and the last tank of fuel I used, delivered over 91mpg.....not bad for a 150. I know plugs are not expensive, but I can't see throwing something away prematurely....especially when you gain nothing in the process. In the last picture you posted, the gap in your plug appears to be at least twice as much as it should be.....don't know what you gap your's to....I run .027". |
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Post by geh3333 on Mar 23, 2015 7:40:23 GMT -5
I put more miles on that stock plug than originally thought-- it's closer to 4,500km. I took pics of my odometer during oil changes and looked back. Quite unusual, normally I put 2 new ones on a year. My scooter came in the shipping crate with a NGK C7HSA plug. That same plug is still in there, after 3 seasons of riding.....about to start season 4, if we can get some of this snow melted. With 5,800 miles operated, which is more than twice as much as 4500km, I have no plans on changing it until at least next year. Scooter starts and runs great, and the last tank of fuel I used, delivered over 91mpg.....not bad for a 150. I know plugs are not expensive, but I can't see throwing something away prematurely....especially when you gain nothing in the process. In the last picture you posted, the gap in your plug appears to be at least twice as much as it should be.....don't know what you gap your's to....I run .027". That's the first thing that came to my mind also about the plug gap in the last pic. When it comes to the plugs , I usually ride around 6,000 miles every season and I usually replace the plug at the beginning of each season. I usually don't have any signs indicating I should change the spark plug , I just do it for the heck of it. |
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