Hi, lapsed member in need of advice.
I’ve owned my 2001 R1150GS for 15 years and due to other stuff happening it’s still got less than 20,000 miles on the clock. I’ve hardly ridden it for a long time, about 200 miles in the last 5 years (mostly to the MoT station and back, not much more.
It’s been running really badly the last couple of years so I’ve decided to get it sorted. It backfires, misfires, splutters, won’t idle and it will suddenly surge forward (scary when hitting a bend).
Obviously the petrol had gone bad so syphoned off almost all of it, added new petrol and seemed a bit better (not much).
My mate noticed that the right cylinder was running very badly and diagnosed a faulty fuel injector – replaced with a new one – again, a bit better but not much.
Got a mobile mechanic to give the bike a full service (oil, oil filter, spark plugs, air filter etc) – he advised new ignition coil needed, now fitted. All the old petrol removed and new fuel added. With the engine running I pulled the fast idle lever and it suddenly started running a good bit better and it would idle (almost).
Thinking that was it sorted I took it for a run – scary, the surging is worse than ever (maybe because both cylinders are now working). If trundling along at a steady say 3,000 RPM it behaves itself but any changes and it surges.
Any advice before I need to take out a new mortgage and put it into the BMW garage? TIA.
I’ve owned my 2001 R1150GS for 15 years and due to other stuff happening it’s still got less than 20,000 miles on the clock. I’ve hardly ridden it for a long time, about 200 miles in the last 5 years (mostly to the MoT station and back, not much more.
It’s been running really badly the last couple of years so I’ve decided to get it sorted. It backfires, misfires, splutters, won’t idle and it will suddenly surge forward (scary when hitting a bend).
Obviously the petrol had gone bad so syphoned off almost all of it, added new petrol and seemed a bit better (not much).
My mate noticed that the right cylinder was running very badly and diagnosed a faulty fuel injector – replaced with a new one – again, a bit better but not much.
Got a mobile mechanic to give the bike a full service (oil, oil filter, spark plugs, air filter etc) – he advised new ignition coil needed, now fitted. All the old petrol removed and new fuel added. With the engine running I pulled the fast idle lever and it suddenly started running a good bit better and it would idle (almost).
Thinking that was it sorted I took it for a run – scary, the surging is worse than ever (maybe because both cylinders are now working). If trundling along at a steady say 3,000 RPM it behaves itself but any changes and it surges.
Any advice before I need to take out a new mortgage and put it into the BMW garage? TIA.
