filthyhuns
filthy huns
hey xs folks.
first of all i'm a mega novice, but i did just finish a top end rebuild of my 77 xs. got the jugs bored out, and got a new 1 over piston and ring sets. got the motor back in the frame, and she started right up. but after a few minutes the rpms "hover" after i let off the throttle. i know this is a classic air leak on the intake boots, but i've sprayed carb cleaner and wd40 all over the manifolds before and after the carbs, and they're is no change whatsoever in the rpms. after a little bit longer the rpms won't go down at all unless i put on the choke for a second. i've cleaned the carbs twice now and have noticed nothing new. no stumbles while rolling thru the throttle at all. the plugs are show slight signs of being lean, but not crazy gray/white. some oil toward the outside with the electrode tip a little gray. the mixture screws are 2 rotations out. the same that they were before the rebuild. any ideas? really appreciate any help.
first of all i'm a mega novice, but i did just finish a top end rebuild of my 77 xs. got the jugs bored out, and got a new 1 over piston and ring sets. got the motor back in the frame, and she started right up. but after a few minutes the rpms "hover" after i let off the throttle. i know this is a classic air leak on the intake boots, but i've sprayed carb cleaner and wd40 all over the manifolds before and after the carbs, and they're is no change whatsoever in the rpms. after a little bit longer the rpms won't go down at all unless i put on the choke for a second. i've cleaned the carbs twice now and have noticed nothing new. no stumbles while rolling thru the throttle at all. the plugs are show slight signs of being lean, but not crazy gray/white. some oil toward the outside with the electrode tip a little gray. the mixture screws are 2 rotations out. the same that they were before the rebuild. any ideas? really appreciate any help.