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Sy-250 Spark Plug


dfwilson
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Glad to help out! I did some experimenting with them and the NGKs. Liked the Bosch better. Try it and see. May need to fiddle with the carb a bit, of course at your altitiude bikes probably run like they are on nitro!

I'm not the end-all-be-all authority, but that was my experience. I run 50/50 race gas/premium unleaded. Needle all the way down. 3,000-6,000 feet normal running range on bikes.

Mike

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