Hi , I bought a F650CS '02 back in March and got 4000 km on it now (35000 odo now), I had a bit of trouble at high rpm pulls that the engine didn't run smooth, I decided to give it a airbox clean-up , new air filter and a new plug. Found that the one installed was Iridium type (wow what a...

f 650gs 2004 5,500miles twin spark has anyone any suggestions for the easy removal,refit of the inner sp-plug cap coil, easier in the book than in real life has anyone tried going in from above by the removal of the battery box

My GS started playing up yesterday, at 3000 to 4000 rpm it was missing and surging. I removed the sparkplug to find the central electrode had worn away leaving a 5mm gap. Apart from this the plug looked ok with no indication of overheating. Has anyone else had similar experience ? I phoned my...

The CS is going in for it's 12,000 next month so I thought I'd do a plug comparison of the extended tip replacements for the DR8EB. The plugs arrived today (from spark-plugs.co.uk) in good time. Some Initial visual comparisons. The plugs: NGK DR8EB (?2.66): The standard plug on the CS. I...