My 2008 Versys has been stuttering, hesitating and now even stalling. It's essentially unrideable now - barely got home the last time.
Hesitation and stalling happens less w/ more throttle and less load on the engine. Keeping 5k+rpms helps it not stall/hesitate.
I'd like to talk through the issues so I can better understand what's up w/ it.
Here's some info:
Nearly 34k miles on it, year round.
This symptom started in slight earlier this year and prompted me to change my air filter (which needed it). It resolved the issue.
More recently, I had some exhaust system issues which led to replacing the header pipes and muffler. Didn't have other service on the engine done.
Honestly, I've been pretty delinquent in my service, I'm actually not sure when the valve adjustment has been checked, though I did just re-clean and oil my BMC air filter, hoping that was going to resolve it (though it was early for needing to re-service, I considered that perhaps the new cotton airfilter needed more attention - clearly not the case as the symptoms are just as bad as before the air filter service - unless I put on too much oil or something and it's no good - not likely).
Here's my thinking:
I have bought new spark plugs and ignition coils to install thinking 1. spark plugs are probably due, 2. coils may have cracked/water gotten in there (an issue apparently?).
Perhaps the misfires from the air filter issue caused the plugs to dirty more quickly and exacerbated the issue?
Are spark plugs a likely culprit?
Are these symptoms consistent w/ ignition coil issues? (if not, what is?)
What I am hoping is not the case is that my valves are *very* out of adjustment. Could that cause this symptom? (if not, what symptom?)
Would riding my motorcycle in this situation increase the likelihood of a valve breaking? (I'll likely have to ride it to a shop at least to have the valves done.)
In any event, valve adjustments are overdue.
I'm planning to change the plugs and coils myself, and see how it rides, but imagine I should go for the valve adjustment too.
Valve adjustments seem like a pretty complex process - don't wanna get into that myself... https://www.youtube.com/watch?v=H8UREinbn7k
How much does valve adjustment usually cost @ a dealer?
Seems like getting the shims for the adjustment can be tricky because you won't know what you need until the engine's all tore up - suppose the shop oughtta have all the sizes in stock and be able to charge post operation for parts, eh?