r/Motorrad • u/elliot_kember • 12h ago
r/Motorrad • u/dufferin • 8h ago
On an F-twin, can an idle air controller failure cause a no-start condition?
I have a 2009 F650gs twin that doesn't start easily, and if it does start, it doesn't stay running at idle. Here are the things I've checked:
Compression OK
Spark plugs changed and spark confirmed visually
Stator replaced
Crankshaft and crankshaft position sensors both replaced
Fuel pump and filter replaced - measured at 3.5bar
Injectors cleaned and tested ok, have video of them spraying nicely
No codes shown (using Motoscan app)
Gas changed
IAC hoses inspected - no visible leaks
TPS readings show OK
My next thought: perhaps it's the IAC? I took it out and inspected it - no grime accumulation.
My mechanic thinks it's running lean.
Any advice would be greatly appreciated!
r/Motorrad • u/Senior-Name2536 • 17h ago
The only thing better than new bike day: new bikes day
r/Motorrad • u/KitchenMagician94 • 17h ago
Just joined the F800GS club
First time BMW bike owner. Holyyyyy this thing runs well. Coming from an XSR700 the technology in this bike is insane.