Which oil did you use? If the clutch were slipping due to standard car oil
being used that would make shifting difficult.

-Kyle


On Mon, Apr 2, 2012 at 8:07 AM, Bryan Gibson <[email protected]> wrote:

> New rider with an '85 Nighthawk CB650SC.  I bought the bike in February
> from a guy that claims to have taken the bike out West just before he
> decided to sell it and after getting to take it out 3 times, the
> transmission seems to be shot.  He claimed to have done routine maintenance
> and was nice enough to change fluids except for oil.  So I went ahead and
> did so using recommended oil/filter.  The last day I rode it, I noticed
> that the bike started having trouble downshifting lower than 3rd and when I
> was lucky enough to get back down to 1st at a stop, I couldn't upshift past
> 3rd.  The clutch seemed loose, too.  I checked the brake fluid level and
> noticed on the clutch side that it was low and full of sediment.  I went
> ahead and changed the brake fluid (using recommended fluid) and the clutch
> was back to normal but I was unable to get any gears past 2nd (on center
> stand with the engine off).  After another 10-15 min of sitting, I now only
> have first and neutral.  I guess my first question (being a noob) should
> be, is it bad to shift gears without the engine running?  When I shift
> gears, the "good" gears click in, but once I try to go higher, it just
> makes a solid "clunk" like it does if you were to try to upshift past OD.
>  Does this sound like a shift fork, bad gear or does the entire tranny need
> replaced???  I'd appreciate any help as I'm itching to get back to riding.
>  (I ordered an OEM manual that isn't here yet and can work on simple things
> but I'm afraid rebuilding anything is above my pay grade.)
>
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