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After going through the fuel system on my "new" Conquest, I pulled the plugs and found the front one to be black around the base ring and the tip was a ashy mocha colored, which is a good color, but it was over the black. The rear plug closet to the dash was what I would call almost oil fouled (black tarry). This machine was all gummed up from sitting so long that I would not want to take a good read on the plugs yet. I will throw some new ones in tomorrow.
What plugs are you guys using? The NGK BPR4ES it calls for or have you guys found something better.
What oil weight? I put in some synthetic 5w-30, but I am only going to use it in the winter. Is this still too thin?
I use the BPR4ES plugs, most guys that I know of do as well.
As for engine oil, I use 10W30 in the summer, 5W30 in the winter.
Trans, I use 80/90 synthetic with limited slip additive, and some very expensive stuff ($90/L) added to help reduce "gear whine" (doesn't do a damn thing, as far as I can tell)
try some lucas oil in the trans. seems to help quite a bit with the whine these machines are notorious for. only problem is its thick and seems to rob a little power.
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