back fire

[tumper]

on occasion when down shifting i get a backfire, is this normal.

yr - 92
NX650 Dominator
Standard exhaust
28,000 on the clock

[anton88]

Hi, could be a very small air leak somewhere, or valves need adjusting ?

When was the bikes last service ?

[tumper]

i'll check her over at the w/end maybe do an oil change, maybe see if i can get a haynes manual for it, in the meantime, short term it should do no damage??

[squirrelciv]

Every now and then Dolly will break wind on the overrun, but I know thats down to a poor seal at the exhaust/muffler joint.

Shouldn't do any harm. but might blow the muffler off/apart