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Before I recently had my heads converted to unleaded, I was running a number of products. One was "ValvTect" which I used to get at West Marine, then on-line, but that seemed to dry up. Then I found a product called "Relead" which I used up until the conversion. When I popped the heads, I was real surprised to see all the build up inside the combustion chamber...most likely from the deposits left behind with these additives.
What changes to the heads are done to make them unleaded compatible?
I presume the reason for using additives in place of leaded gasoline is to provide the lube that lead used to provide?
I add a cup of 100 Low lead aviation gas at every fill up. Easy for me since I have an airplane and just drain a cup from the sumps and dump it in the bike.
Most airports will sell you a gallon or two (or more) of avgas without any hassle.
so... ya'all are basically saying that the lead helped the valves to seat?
It isn't a upper end lube issue? That' s what I always heard.
... if only for anti-knock in the Texas heat.