Both these questions need to be placed on the FAQ, next to the Newbie notice.
Probert31 wrote on 12/31/69 at 16:00:08:Just got a new Boulevard S40. Since the initial 600 mile service, about 150 miles ago, I've noticed a discoloration of the header pipes. After a little research, I found that discoloration is mainly due to "tuning characteristics, cam timing, carburetor jetting, overheating, and so forth, and is NOT caused by defective manufacturing." Do you guys know any way I could figure out why I'm havinbg this problem?... Also, I have been having problems down shifting...
My gearbox was quite stiff, the 3-4 change required more effort. The dealer did the 400 mile change free as it was purchased there used w/ just over 400 on the clock, so ran that to about a 1100-1200 miles to let things seat and switched to 15-50 Mobil1 (red cap). That and about another 3000-4000 miles with changes @ about 2500- 3K (miles) and the gearbox shifts consistantly. I try not to abuse the bike and hope to get a long service life, however sometimes traffic requires WOT.
This
not a Harley pushrod, but an OHC design that must push oil up to the top end where it maybe subject to more heat transfer.
Intend next to mix 1qt. of the new 'bike' 20-50 M1 and top off w/ 15-50 M1 red cap or 10-40 M1. The 20-50 likely offers the best gearbox and temp protection, however word has it that the Savage oiling system was compromised in production or perhaps the top end oiling is marginal. (someone managed to kick the oil filter cover off last week, it must make pressure) so when cold also need a low viscosity to get oil to the top end ASAP, so again consider your riding style and climate, and suffcient warmup.
Consider an oil that will flow when 1st cranked and still provide the best high temp stability in your new air-cooled thumper.
As far as your headpipe goes, if you ride it, it will turn, even if you change the jet.
You have a lot of reading to do here at SS.com.
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