I have been reading a lot lately about hard starts and rattling/ticking noises in R1s of different years. I purchased mine used last year with intentions of making a track bike out of it. After a week or so I too noticed the famous "ticking" sounds they love to produce. I took it to the wizard here in Tennessee and found that the cct was in fact bunk and replaced it.This did help some with the hard starts, I'm guessing that it caused improper timing issues. We checked the fuel maps and found them to be right on for stock settings. Still after a few days of sitting it is hard to start. Any other ideas???

Welcome crossplane [ crank] , Its a bit to modern for me them R1"s... post up in workshop area..

Hi crossplane,check the injectors for leaking.

Thanks for the welcome blackhat and I'll copy and repost. dt I'm assuming your talking about fuel backlashing causing pressure drops right? O rings should be fine otherwise i would have compression leakage

Greetings crossplane, i'm same as blackhat It's out of my league too is that i'm only just getting to grips with YDIS

Thanks for the warm welcome airhead!!!

I was thinking along the line of injector needle not seating due to deposits,leaking fuel,have you tried injector cleaner?

Hi & Welcome Crossplane. You say Hard Start is that turning over OK but not firing or slow turning?

All the end camchain large engined Yams rattle FZS1000, all R1s and my FJR and a few had valve guide issues so the question is how is the compression and are you burning oil at start up?

PS. The rattle is it around No 1 valve?

The rattle ended up being the cam chain tensioner. While i had the access to everything i checked valve lash and some were slightly off. The hard syarts are still under investigation due to my ignorant american ass killing a cell in the battery. I purchased another battery yesterday (along with oil and filter that costs over $130 dollars) but the battery ended up being wrong as the posts were on incorrect sides. I have been told to crack the throttle slightly when starting to reduce the amount of drag on starter so hopefully that will help.

P.S. no oil burning