r850r backfire problem help please.
Hi need some help please. I have a 95 r850r (25k miles). Owned it for 6 mnths and its been great so far, up until this week when it has suddenly developed terrible backfire under deceleration. Generally by the time it gets down to 2k revs the thing sounds like a shot gun going off. There seems to be a slight misfire/surge when you try to hold a steady throttle as well(I would not describe this as surging it seems to quick).I am worried it will blow the exhaust so am not riding it at the moment. I have changed the plugs, checked all the connections etc and as per advice on this site I have checked both cables are seated correctly. Air filter is good and I have read all the stuff on syncing the TB's and resetting the TPS. Anyone any ideas before I take the plunge and really mess things up?? Cheers. Strodius.(by the way this is an excellent site thanks for all those posting great info)