I've got about 35K miles on the Valkyrie Interstate and had it tuned up about 15K ago. It has always started a little rough in cool weather, but with a little choke, starts ok, sputters a little but then levels out fine, and idles normal. I am getting ready to take a 2K trip, and am curious if there is a good fuel additive I should use to see if it improves the start or just get a tune up? The local honda dealer got my attention when he said a tune job could run anywhere from $150-500. He was quick to point out $500 ceiling was for one that hardly runs.....but biz may be slow.
I've done a lot of mods on the bike, but a tune is probably beyond my job description.
Any suggestions on the additive?
Most guys seem to like Seafoam, and/or techron.