400BOBBER
XS400 Member
Hey gents! New here! Just picked up my first Yamaha! 1981 xs400! Bobbed a bit! Has stock carbs, with pod filters and mac 2 into 1 exhaust! As far as I know, the rest of motor is stock! Just today, found out from previous owner, that the guy before him, rebuilt carbs, and put washers over the needles to upgrade his jet setting??? I am pretty sure that wasn't supposed to work that way! May be the source of said problem! Onto that!
The bike starts, idles, and runs fine! Up until I hit the higher RPM's, then it's sputter, sputter, and I shift gears! I am also getting alot of backfiring. And the last question! I know it is an older bike, but what is everyone else seeing as far as gas mileage! I ran about 150 miles today, give or take, and ran clean out? Possibly part of the bigger picture here??
Any info would be helpful! Thanks
The bike starts, idles, and runs fine! Up until I hit the higher RPM's, then it's sputter, sputter, and I shift gears! I am also getting alot of backfiring. And the last question! I know it is an older bike, but what is everyone else seeing as far as gas mileage! I ran about 150 miles today, give or take, and ran clean out? Possibly part of the bigger picture here??
Any info would be helpful! Thanks