• 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.

750 performance

  • Thread starter Thread starter thanatos750
  • Start date Start date
T

thanatos750

Guest
First post ever for a new GS owner! Last Fall I purchased a 81 gs750L with only 8,000kms on it. I've noticed everyone is doing up the 1100's but I'd like some advice on getting some more kick(power) out of the 750. not sure how far I want to take it yet but I'd like some ideas about what you can do to these engines and roughly how much of a difference the mods will make. I heard somewhere that with some tuning you can get a 750 to be a very agresive bike. Any help would be great.
thanks
 
Cheaper side (but not cheap) 4-1 pipe, K&N pods and a Dynojet stage3 jetting kit.

More money; High lift cams, ported head and a Wiseco big bore kit.

Talk to these people. They WILL make your bike go fast.http://gszone.biz/
 
#'s

#'s

any kind of Idea what pipes jets and pods would do for the hp or tourque #'s? I think a stock 81 750 has about 63hp (please correct if I'm wrong)? with these mods any rough guess? At the GS zone site just emal the tech guy?
 
thanatos750 said:
any kind of Idea what pipes jets and pods would do for the hp or tourque #'s? I think a stock 81 750 has about 63hp (please correct if I'm wrong)? with these mods any rough guess? At the GS zone site just emal the tech guy?
Click to expand...
http://www.suzukicycles.org/GSX-series/GSX750E.shtml

According to these folks the 1981 factory numbers are 79 hp.

Mike

1981 Suzuki year code: X[FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-3][/SIZE][/FONT]
GSX750EX (E2) had almost the same specifications as the first model. The handlebar width was changed from 800 mm to 775 mm and the fuel tank was redesigned and its volume increased from 19 to 24 liter.
3x3_transparent.gif

Presented in Japan in February 1981.
3x3_transparent.gif
GSX 750 E 1981
Overall Length: 2 250 mm (88.6 in)
Overall Width: 875 mm (34.4 in)
Overall Height: 1 189 mm (46.8 in)
Wheelbase: 1 520 mm (59.8 in)
Ground Clearance: 150 mm (5.9 in)
Dry Weight: 229 kg (504 lbs)
Engine type: Air-cooled 747 cc inline-4, DOHC, 16 valves. 79 hp (59 kW)/ 9,200 rpm, 63 Nm/ 8,400 rpm.
 
mriddle said:
http://www.suzukicycles.org/GSX-series/GSX750E.shtml

According to these folks the 1981 factory numbers are 79 hp.

Mike

1981 Suzuki year code: X[FONT=Verdana, Arial, Helvetica, sans-serif][SIZE=-3][/SIZE][/FONT]
GSX750EX (E2) had almost the same specifications as the first model. The handlebar width was changed from 800 mm to 775 mm and the fuel tank was redesigned and its volume increased from 19 to 24 liter.
3x3_transparent.gif

Presented in Japan in February 1981.
3x3_transparent.gif
GSX 750 E 1981
Overall Length: 2 250 mm (88.6 in)
Overall Width: 875 mm (34.4 in)
Overall Height: 1 189 mm (46.8 in)
Wheelbase: 1 520 mm (59.8 in)
Ground Clearance: 150 mm (5.9 in)
Dry Weight: 229 kg (504 lbs)
Engine type: Air-cooled 747 cc inline-4, DOHC, 16 valves. 79 hp (59 kW)/ 9,200 rpm, 63 Nm/ 8,400 rpm.
Click to expand...
then I see this:


I have given the European unrestricted power figures for all of the models on this page. The Japanese model had 69 hp/ 8.500 rpm, 6,2 kg-m/ 7.000 rpm.

Sorry
 
Vance and Hines 4-1 pipe.
K&N pods
Dynojet jetting kit

As for HP I don't know. I do know the poweband becomes wicked with these mods. Getting the idle and take off jetted right can be a pain though.
 
Well when I had my GS750 I bought a Yoshimura 850 kit to try out first. This increased the midrange torque. Then I bought stage 1 road and track cams.

Depending on what exhaust system I had on (standard GS or modfied Devil 4-1). With GS it gave it a narrow but high power band. It was pretty docile below 6000, then power came in with a surge at 6000 rpm and you had to be careful.

With 4-1 it was more tractable and easier to ride. :-D
 
available

available

are 4-1 pipes available for a 81 750 or does a guy have to modify them? also define modify.... are the exuast holes lined up?.... does a guy just have to build a bracket for the rear?
thanks
 
where?

where?

where are people buying these aftermarket cams etc for these old GS bikes? I only run into stuff for new bikes
 
thanatos750 said:
are 4-1 pipes available for a 81 750 or does a guy have to modify them? also define modify.... are the exuast holes lined up?
Click to expand...
I modified my Devil because I didn't like the baffle arrangement, it didn't have one. I made a stainless steel can and lined it with asbestos rope. I tried a friends Yoshimura 4-1 but that didn't appear to make no difference to the power output.

I forget the year change but is the 81 a 8 valve or 16 valve? I would have thought that you could get 4-1 for an 81 model. :-D
 
You must log in or register to reply here.
Back
Top