• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

81 GS650L engine "whine" how much normal??

  • Thread starter Thread starter barnbiketom
  • Start date Start date
B

barnbiketom

Guest
looking for a baseline 35,000 miles on 650L shaft.After searching for a while, I need to ask. what is the normal amount of WHINE? it is engine rpm related.. valves right on the money after 3 shim changes. NOT gear or final driveline. more noticable under 60 mph.. especially at lower speeds and every gear the same. It is very noticable. winds up like turbo.
Cam chain tensioner is working (bolt not tight lol)I can place my fingers on the knob and SLIGHTLY exert pressure and feel the mechanism is working. I had it out when doing the carbs and cleaned it and all was good...bike runs excellent.
I had an exact bike 2 years ago and remember it whined too, but maybe not this much??
recent oil and filter showed nothing abnormal..??? should I just get a looser helmet and make more wind noise??
I may unhook my tacho today and see if it makes a difference.
 
I don't know why, but sometimes the alternator whines. On some bikes it's pretty loud. Don't remember, does the '81 650 have helical or straight primary gears? Straight cut gears can whine too. That's why most bikes use helical. I think yours are helical though. Just checked, according to the parts diagram, they are helical.


I don't remember my '81 650 whining at all, so I don't think it's something always found in that particular model.

At any rate the whining shouldn't really be noticeable at any speed above just about stopped.

Maybe get earplugs and ride faster.
 
I'll attempt to record it today. supposed to be sunny and 60 so my old bones can stand it.. stay tuned!
 
yes,helical; My hearing is poor, but I hear no whining from mine. You've ruled out drivetrain,will it whine with clutch lever pulled in?
 
I had a whining issue with my spedo. I used some lithium grease in the cable and wd-40 in the spedo and it seems to clear it right up. It smoothed out the speedo too. The needle used to bounce all around on me
 
Tachometer can whine, mind did, a little lube and it went away
 
OK is is NOT the TACH or the SPEEDO.
It 'whines' mostly on accel NOT DECEL and a wee little maybe on coast.
It GOES AWAY with clutch pulled in, but of course, that must be unloading something???
I have attempted to upload a youtube vid..I clipped my otterbox onto the sparkplug wire...
I am NOT GRUNTING occasionally.. that must be the phone vibrating hahahha.
http://youtu.be/vFTRts8ucWg
 
Old guy said:
Just sounds like gear noise. Maybe the bevel gear?
Click to expand...
The incremental pitch of the whine stays the same no matter what gear it's in. it does not increase in pich according to road speed, just motor speed. if it were final drive it would increase in pitch like a rear end increases in ROAD SPEED. i just dunno if i should ignore it or what.. its almost like the primary gears are straight cut racing like my old dirtbikes had but supposedly not??
 
".......It GOES AWAY with clutch pulled in, but of course, that must be unloading something???"
I didn't listen , but maybe the needle bearing in clutch is unhappy and whining under load. I'd ignore it for now.
 
Wingsconsin had the same issue with his 650GL. I don't know if he ever described it as a "problem".
 
Grand Rouge said:
Sounds like the wine from crank and clutch basket gears.

Both of my 1100E's have similar sound since new.

Barnbiketom, is the sound way louder when you, for example, roll the throttle on in top gear from a 'low' RPM and does the sound perhaps diminish somewhat as RPM / road speed increases?
Click to expand...

Yes that is what it does. it is most noticable at around 2500-4000 then gets much quieter at higher revs..
I have a windshield coming and I'm sure that will make it louder hahaha
 
Nix on the bigger helmet. You don't want a loose helmet. It can rotate on your head in an accident.
 
I just looked at EBAY listings for the clutch basket and pics show helical cut gears. poop.
 
If I'm listening to the correct sound mine does it, and other bikes I have had too. It's been 28 years but it I seem to recall my V65 having a very pronounced whirring sound I think due to the exhaust being so quiet as well as the rest of the engine. I don't know what causes it but it makes me think I'm sitting on a electric motor. My GS is fairly quiet till you wring it out and the only unsettling sound I hear at low rpms is the "cam walk" pecking every now and then.
 
Barnbiketom, Have you done anymore to determine what the whine is ?

I have a newly acquired 1980 (September '79 build date) GS850LT shaftie and it makes EXACTLY the same whine at EXACTLY the same times under EXACTLY the same conditions. The youtube video sounded EXACTLY the same including all the wind noise.

On my bike, it sounds like it's coming from the left side of the engine/tranmsission. If you're not worried about it anymore, maybe I shouldn't be either.
 
Was there any resolution to this? My zx-10 project does this. Defintely sounds like a bearing that may be worn or something related to the clutch but I have no idea how to know for sure. Hope one of you guys figured it out?
 
So I have this same problem on my ZX1000. It's really pretty loud. I thought about taking the clutch assembly apart but I'm not sure I would see anything that would identify where the whine is coming from. Mine rises and falls with RPM just like the OP's. Anyone else experience this and if so, what was the fix and how did you figure out what it was?

Thanks.
 
Sounds like typical foreign bike clutch whistle (what I call it) to me. They all do it. My 2-cycle dirt bikes do too. I've never really figured out what causes it. It's not the gearbox as it can be most pronounced when just letting the clutch out, and the bike isn't even at a walking pace yet. It's not timing chain/valvetrain as the 2-cycles do it. Never let it bother me other than curiosity.
 
You must log in or register to reply here.
Back
Top