Join Date: Jan 2013
Location: South Carolina, USA
What has your oil change regimen been? How fresh and full is the oil now? Have you been using quality oil filters?
Seems like a matter of excess drag in the transmission. If the bike is otherwise running and riding well, I wouldn’t worry too much. I’d change the oil with a good quality oil, maybe even synth, ride it a bit (a good 75 to 200 miles within two days), then change the oil again. Use 30 weight if you can. See how that goes.
Alternatively, it could be the starter or the electrical contacts to it. I’d clean those up, too.
2013 CBR500R - probably up for sale soon - OK, NOT!
2006 GSX-R 750 - track only
1984 CB700SC - hopefully running again soon, then maybe up for sale
2012 CBR250R - Sold!