ok it's not that big of an emergency, i don't think, since the bike still runs and goes and stuff...but here's the problem.

i was rounding a turn to a long straight so i decided to get on the gas.  when the bike reached about 9k, she surged.  it was kind of like a dead spot, or a kind of stall, but basically, she didn't want to go above 9k.  that was when i was at sort of full twist and in 1st and 2nd gears.  i couldn't go above those w/ the posted speed limits (residential main roads).

now i easily rolled on at another straight and she went to 9k-10k fine, but when i tried to gun it...stalling again.

i assume it's just an "old clutch" issue.  actually, i'm hoping that's all it is and nothing more serious.  i've been putting it off but yeah, i need a new clutch (i think...how does one know besides for a hella twisted adjustment screw?) as well as brakes and fluid.

any ideas??

Doesn't sound like your clutch to me.

*scratches head*

What about your carbs?  Have you cleaned 'em?

My boss had a similar problem with his bike. I suggested to him to check (and adjust if necessary) his clutch cable on both ends. Turns out, that fixed the problem! The clutch cable on the engine end was loose.  :dunno:

Quote from: Jake DWhat about your carbs?  Have you cleaned 'em?

my carbs were cleaned w/ a full tune up back in april/may.  i ride the bike fairly often whenever the weather permits so they shouldn't be gummed up...

Quote from: phaedruscheck (and adjust if necessary) his clutch cable on both ends. Turns out, that fixed the problem! The clutch cable on the engine end was loose.

is this mentioned in that clymer manual?  i still need to get one.  is it easy to do myself?  also, if a shop does it, should it be fairly expensive?  i'm sorta in a pinch right now...if it's as easy as adjusting the clutch on the bars then hell, i'll do it...

Dooo eeeeett

Quote from: scratchDooo eeeeett

ok...

so can anyone w/ a clymer manual or just basic knowledge of how to adjust the clutch on the engine side chime in?

the main site only shows how to adjust the lever...searching turned up, at best, advice to do the job but not how. :dunno:

quick rundown anybody??  

Actually, doing a search on "adjust and clutch and cable" with username "scratch" revealed: http://www.gstwins.com/forum/viewtopic.php?p=107246#107246
(there were more results, i just chose this one; you may also try that search with Kerry's name, instead)

But, the adjustment is similar to reinstallation with the adjustment.

Loosen, just the crankcase and the handlebar adjusters all the way in.
Tighten the crankcase adjuster till you have 4mm of play at the handlebar.
Turn bars full lock left and right and figure out which side is the tightest.
And, adjust the handlebar adjuster til there is only 1mm of play left at the tightest point, or adjust to taste.

Hope this helps!

cool i was sorta confused for a sec but i think i got it...the link was just for pics right??  

well i adjusted it...i'll see if it fixes anything.  i think i twisted the engine side adjuster up a few.  previously, i just had the handlebar adjuster almost all the way out.

ps.
where do you guys get your almighty search powers??  i searched and just came up w/ random off-topic discussions where the word "clutch" or "adjustment" was in the 5th post on the 6th page on an issue dealing w/ tires or something.  haha...i must develop my search...


~*edit*~
ok i took her out for a ride and here's what i observed.  the clutch adjustment made a nice difference in engagement and lever feel...and even when i rolled on and off the throttle.  but the clutch adjustment thingy didn't fix it entirely.  either i didn't adjust it enough or it just wasn't the problem at all.  btw, is it 4mm free play at the end of the lever or where the cable's cylinder-that-attaches-to-the-lever-thingy?

but...here's also what i observed.  yesterday i got caught at like, 5 consecutive (nazi) stoplights on my way home from school.  i also stopped at a really long one today.  the "surging" happened after those lights.  when i stopped at the bank and gassed it down the road, it didn't really happen...

...so whahappen??  i'm guessing it has something to do w/ engine temp...:dunno:

also, i decided to run 87 instead of my normal 91 this tank.  could that be an issue?  oh, and there are (yeeshk) 50k miles on her.

any insight?

Valves will do that - have you checked the clearence?

back in april/may w/ the full tune up...that was the last time...

Okay, two things...actually, several things: You changed octane when we haven't even figured out what the problems is.
Does this always happen at 9000rpms in every gear? If so, the clutch friction plates may be worn out. You said 50,000 miles!?

4mm at the pivot, or perch, er, I mean at the cable end.

Ah, yes, and I wanted to say that you are supposed to check your valves every 4000 miles, wheather they need to be adjusted or not; they need to be checked to see if they need to be adjusted, at least.

Quote from: scratchOkay, two things...actually, several things: You changed octane when we haven't even figured out what the problems is.
Does this always happen at 9000rpms in every gear? If so, the clutch friction plates may be worn out. You said 50,000 miles!?.

haha yeah 50k and still goin strong, i guess...

but i changed octane last week, i think.  i just tried gassing it yesterday.  oh also, it's been really hot in the afternoons i ride. :x  does that matter?

umm, i'll try to run as many gears as i can to 9k and see what happens. kinda afraid since it's rounding the end of the month (here piggy piggy...) :nana:

You should be able to run it to 9k in 4th gear on an open stretch of highway.

What's really fun is exiting a corner at 9k in 4th gear. THAT is an experience.