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Post by kaintuckdave on Mar 14, 2009 9:58:04 GMT -5
Hey guys, it's been cold here but have been scootin' at least once a week. I've had all sorts of trouble with my scoot not starting and then once it warms up, dying on me. Have fiddled with the air/fuel and idle screws just over and over. Thing is, it started this behavior last fall when it was still warm and thinking back, it was after I put in the Iridium plug. You think SYMs don't like those plugs?  |
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Post by 90GTVert on Mar 14, 2009 10:11:08 GMT -5
Mine love the iridium plugs, but it's not the first time someone here has complianed about poor performance right after adding an iridium plug. I'm not sure what would cause that. A standard plug is only a couple of bucks and Auto Zone or some local shop should have standard NGK plugs in stock, or maybe you saved an old plug that's in decent shape? Make sure your iridium is the same style as the stock replacement also (BR8HS = BR8HIX, not BR6HIX).
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Post by scosgt on Mar 14, 2009 16:01:48 GMT -5
I had mixed results with Iridium plugs. The one equivalent to a BR8 would not run, I had to take it right out. The one equal to the BR7 worked, but until warmed up would always teeter on the edge of stalling out. I went back to a BPR7HS, which is all of $2.50 or so and works fine. I change out the plug every 700 miles or so, at that price, and 5 minutes work, why not?
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Post by scosgt on Mar 14, 2009 17:01:02 GMT -5
Oh, and if you gapped the plug, that is the problem. You don't gap iridium plugs, you leave them set to factory specs.
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Post by kaintuckdave on Mar 14, 2009 19:39:47 GMT -5
Thanks Brent, starting to wonder if maybe there are quality control issues with the iridium's. Yeah, clutter monster than I am, I do have my stock plug around here somewhere....  And scosgt, I didn't worry with the gap as that's what I had heard as well. Think my scoot just wants it's stock plug back. |
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Post by 2strokd on Mar 17, 2009 16:14:58 GMT -5
I put an Iridium in my CPI and my uncle has one in his Kymco Cobra. They work great in our scoots, mostly on the cold starts, maybe alittle more power.?. The bigest thing ive seen that sold me on Iridium was the other day. Uncles scoot was running fine, then just lost all power like it had a 3000rpm rev limiter or something. Long story short, turns out the oil mixture was way to rich on that tank(oops), and the plug got plugged. The whole gap area of the Iridium plug was pluged with chunks of burnt oil carbon crap. The real catch is that he was able to ride the 5 more blocks home with the plug like this. When we got home and let it cool a bit i pulled the plug to find it pluged lol, cleaned it, put in fresh fuel, and its still running great. I havent found a plug yet(before iridium) that is capable of such abuse without failing.
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