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View Full Version : 400ex carb on 300ex



clay3007
04-23-2009, 08:34 PM
ok i got the carb on and put a 135 main jet in it on the least clip setting. also i have a 42 pilot jet in since the choke was removed. stock air box with uni filter and wb header and hmf slip on. i ran the bike up the road a couple times and come back the plug has a think black coating on it and it wet around the ring on the plug but the electode is dry. which is rich, now i bought a 132 main and 128 main. also bought a 40 pilot jet. where should i go from here?