• 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.

Engine RPM @ 55-60 MPH?

  • Thread starter Thread starter Anonymous
  • Start date Start date
A

Anonymous

Guest
Finally got on the road Sat. Drove the bike to NYS inspection station. On the way there, at about 45-50, the bike felt as if it needed a 6th gear. This was the 1st time I had ridden the bike on the road, aside from being nervous, I took it easy. Bike seems to have a lot of power. As far as I know this bike is stock. What should the avg RPM at 55-60 MPH?

Thanks
83 GS 750ED
 
Re: Engine RPM @ 55-60 MPH?

My 79 750E (8 valve) turns about 4800-5000 rpm at 60 mph.

Earl


Mister T said:
Finally got on the road Sat. Drove the bike to NYS inspection station. On the way there, at about 45-50, the bike felt as if it needed a 6th gear. This was the 1st time I had ridden the bike on the road, aside from being nervous, I took it easy. Bike seems to have a lot of power. As far as I know this bike is stock. What should the avg RPM at 55-60 MPH?

Thanks
83 GS 750ED
Click to expand...
 
Gearing...

Gearing...

Hi ya all:
I have found both my Four-stroke Suzukis have needed regearing to have longer gears. It is easy to regear a your machine as well!
All you need to do is get a new sprocket chain combination.....your present ratio might be a 15 tooth front sprocket and a 42 tooth rear sprocket.....if you change to a 16 tooth front and a 39 tooth rear your top gear RPM will be much lower and she will be easier on your nerves while cruising in top gear.
Rick......
 
These bikes tend to rev a bit higher than the newer machines.

I seem to recall that my ZRX1200R is close to 100mph at 5500rpm. I ran all the way across South Dakota at that speed on I-90 and didn't see one cop. Amazing. 8)
 
I had a Honda 450 that RPM'd at 5000 @ 60mph. It sounded about as fast as my B&S lawnmower engine, however, my 1100 at 4000 ( about 70-75mph) sounds like it needs an extra gear. Guess it's just the nature of the beast.. :twisted:
 
Hi and thanks for the info. Is there a vendor that sells these kits? The bike has 50K miles, and it might be due for a change. I'm not sure if the chain and sprocket are original equipment. The manual specifies a 530 O-ring chain w/ 112 links.

Thanks

83 GS 750ED
 
my 79 GS550, with 6 gears, turns about 5000 RPM at 55 MPH. 5500 RPM is 65 MPH.
 
Re: Engine RPM @ 55-60 MPH?

Mister T said:
Finally got on the road Sat. Drove the bike to NYS inspection station. On the way there, at about 45-50, the bike felt as if it needed a 6th gear. This was the 1st time I had ridden the bike on the road, aside from being nervous, I took it easy. Bike seems to have a lot of power. As far as I know this bike is stock. What should the avg RPM at 55-60 MPH?

Thanks
83 GS 750ED
Click to expand...

Just checked my '83 750es with stock gearing(14/43) this morning coming to work and indicated speed was 14mph per 1k rpm so 60mph = approx. 4280 rpm.
 
Sounds about par for my '83 750ED. I'll check again to make sure.
 
I 1000G is at around 3900 at 60mph and feels like it is loafing along nice and smooth, it doesnt get buisy feeling till 5Krpm, or about 75mph.
my voyager 1300 will run 100mph all day, it seems to like running that fast. :twisted:
 
Speed Ratios

Speed Ratios

Mister T said:
Hi and thanks for the info. Is there a vendor that sells these kits? The bike has 50K miles, and it might be due for a change. I'm not sure if the chain and sprocket are original equipment. The manual specifies a 530 O-ring chain w/ 112 links.

Thanks

83 GS 750ED
Click to expand...
Mister T:
There are no 'kits' per say, you just need to look up in a manual & find out what the factory tooth count is on the front sprocket and the rear.
A visual count yourself on your hands and knees will confirm this.(You won't be able to count the front).
A tooth count increase on the front and a DECREASE on the rear will drop your top gear RPM. Most simply decrease the rear as too large a front can cause chain interference.
A good drop in the rear say from 42 to 35? will be a wonderful change.
You will probably have to remove a link or two from your chain when you make this change. A good shop can guide you as to the specifics, pricing, and other things that I may have missed.
Rick......
 
Hi and thanks for the info. I have read postings that highly recommend changing both sprockets and the chain, if replacing any one single item. It sounds like I should replace the rear sprocket with a lower number and leave the front sprocket stock. The manual says it is a 14 front and the rear is a 42.
The bike has 50K miles, it might be a good winter project. I'm planning to replace the front and rear wheel bearings, etc.
 
you should change both sprockets and chain together.
not relavant, but my shaft drive 82' 1100gl does 61mph at 4000rpm
alternate sprockets will also change the performance of your bike. depending on the power curve, it may not be as "spirited" or rev readily as you climb the gears. a passenger may make it feel like a slug too.
my son has a 650 85' Nighthawk (great bike) shaft drive and 6 gears. 6th according to the gear indicator is overdrive. with my wife on the back 100lbs, i can feel the differance on hills and the freeway. Its more pleasing with out the extra "bagage".
 
You must log in or register to reply here.
Back
Top