Purchased my '11 Vaquero Jan of 2012, have 29,500 miles on it as of this post. last year around 18k miles i flushed the coolant with vinegar and distilled water, then distilled water a few times and refilled with engine ice...the engine ice didn't work any better, fins on radiator look good, system was burped and didn't have any air in it...
bike shouldn't be running as hot as it is - we haven't gotten hotter than 80F yet this year.
I contacted Ray and decided to go with a 70% distilled water, 30% etheylene glycol coolant/antifreeze and 6oz of water wetter
Upon removing my coolant fill cap i found the black coating on the inside was pealing off and contaminating my system, and in the overflow tank i found red clay looking material, like muddy water so i decided to flush with a coolant flush - prestone i think.
I drained all fuid and then dumped the whole prestone bottle in there, topped off with distilled water and let the bike run for 30 min intervals for a couple of hours, rode it around the block...drained that liquid and replaced with straight distilled water, ran it some today to get it circulating again, and will flush, refill with distilled water and run it again tonight to try to get the rest of that cleaner out....once i succeed there i will go with rays mix
anyone else have this issue? haven't checked the radiator fins but assume they are fine - thought about taking some a/c coil cleaner to the fins on the radiator but i'm still flushing, want to make sure it is really clean before i put ethylene glocol back in it.