I have a DL1000 with 15,000 km's. Over the past week I have noticed a definate vibration coming through the handle bars and the foot pegs. About a month ago I switched to iridium plugs and it was running just fine. Last weekend I switched over to 10W 40 synthetic oil for the very first time, up until now I have been running Suzuki 10W 40 dino oil. Could switching to synthetic cause this issue? It has only started since the switch to synthetic oil.
I have checked the chain for correct tension and kinks, I have checked to see if any wheel weights have come off - nothing.
The manual recommends a Throttle body sync at 12,000 km's - I haven't done this yet, could this cause such a vibration if the throttle bodies are out?
I have tried to check to see if this is the start of the dreaded clutch chudder. At idle there is a bit of vibration coming from the clutch, which I can notice if I am stopped and in neutral - if I pull the clutch in it will stop. I have tried the clutch chudder test going up a hill under a load and pulling the clutch in slightly and there is no difference, so I don't think it is clutch chudder causing the vibration.
Any thing else I could check? It seems very odd that all this vibration started since switching to synthetic oil - just a coincidence?????