What brand of spark plug for moped?

I've had some people tell me that 2-cycle engines run better on Bosch or NKG spark plugs. Has anyone experienced that Champion or Auto lite spark plugs make their engine run rougher? What brand of spark plugs have you found that work best in the little moped engines?

Brian

Re: What brand of spark plug for moped?

It really depends on the moped. I used to have a Vespa Ciao (don't ever buy one!), it had a champion plug and it ran reasonably fine with it. The engine and overall desing were crap, but the sparkplug was fine. Because my mopedstore didn't have Champion plugs I used an NGK equivalent, it didn't make any difference. But then again, this moped didn't react to any changes at all, I could run it with a 38 jet or with a 48, it ran exactly the same, really weird now I think about it. Generally NKG's or Nippon Denso's are better for Japanese bikes while Bosch and Champion do best in European bikes. But there are always exceptions ofcourse.

Re: What brand of spark plug for moped?

We'll see. I ordered 4 NKG's for my'76 Batavus and will try them. The repair manual recommends Bosch, but I'm unable to find anyone in the area that can order them for me.

The previous owner was running a 16:1 oil ratio and I'm going to try 32:1 to see if that helps take the deadness out of the engine. The Batavus repair manual says that 50:1 is the normal ratio, but being unfamiliar with this moped's background I'm going to error on the conservative side for the oil ratio.

I'm getting the gas tank lined with Kreem because of the pepper rust that's going through the fuel line to the filter. Then maybe I can get an after market shutoff valve and it won't clog from the rust.

Brian

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