WTB GT750 transmission
Moderators: oldjapanesebikes, H2RICK, diamondj, Suzsmokeyallan
- jabcb
- Moto GP
- Posts: 4311
- Joined: Mon Dec 13, 2010 4:32 pm
- Country: USA
- Suzuki 2-Strokes: 69 T350 thru 75 GT750
- Location: southwestern Pennsylvania
WTB GT750 transmission
Am rebuilding a 75 GT750 engine. Need to replace a few of the gears.
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
- Suzsmokeyallan
- Moto GP
- Posts: 4326
- Joined: Fri Oct 24, 2008 9:11 am
- Location: Mostly Barbados, sometimes Florida and western Canada
- Contact:
Re: WTB GT750 transmission
You need to be careful there, its best to buy a complete set of gears as a set, and to pick a year with the ratios you desire as they made changes during the range of 72 to 77.
Two strokes, its just that simple.
69 Suz U70
69 Suz T500
72 Suz GT750 cafe
74 Suz TS250
74 Suz GTXVR project
75 Suz RE5
75 Suz GT750
76 Suz TS400
76 Suz GT750
81 Suz GSX1100
86 Suz RG500x2
88 Hon CR500
93 Hon CBR900RR
98 Suz GSF1200x3
15 Kaw Ninja H2
69 Suz U70
69 Suz T500
72 Suz GT750 cafe
74 Suz TS250
74 Suz GTXVR project
75 Suz RE5
75 Suz GT750
76 Suz TS400
76 Suz GT750
81 Suz GSX1100
86 Suz RG500x2
88 Hon CR500
93 Hon CBR900RR
98 Suz GSF1200x3
15 Kaw Ninja H2
-
- To the on ramp
- Posts: 319
- Joined: Fri Mar 27, 2009 6:31 am
- Location: Pittsburgh,Pennsylvania
Re: WTB GT750 transmission
Where in SW PA. are you? I'm a mile off exit 67 of the Pa. turnpike. I've got a complete motor with carbs that turns (and probably runs) you can have for $150. Not sure of the year but guessing it's a 74-75.
2000 ZRX (the green ones are fastest)
72 GT750 (almost done)
73 RV 125
72 RV 90 X 2
Now proudly displaying membership number 91 in the Ugly Fat Old Bastards Motorcycle Club.
http://www.ozebook.com/cpotw/documents/register.html
72 GT750 (almost done)
73 RV 125
72 RV 90 X 2
Now proudly displaying membership number 91 in the Ugly Fat Old Bastards Motorcycle Club.
http://www.ozebook.com/cpotw/documents/register.html
- jabcb
- Moto GP
- Posts: 4311
- Joined: Mon Dec 13, 2010 4:32 pm
- Country: USA
- Suzuki 2-Strokes: 69 T350 thru 75 GT750
- Location: southwestern Pennsylvania
Re: WTB GT750 transmission
Djfisher22, thanks for the offer. That adds another option to the list. I'm also located near the same Turnpike exit.
Suzsmokeyallan, thanks for the insight. In researching this I happened across your videos on using a GS transmission in a GT750.
part1: http://www.youtube.com/watch?v=7W09UbbrQcA
part2: http://www.youtube.com/watch?v=XMaK_7PotD4
Definitely interesting. Don't know if it would be any easier to find a GS750 transmission in excellent condition.
Am sorting thru the issues...
My engine cases have brown color code, so I need yellow color coded 1st & 2nd driven gears.
Then there are the gear ratio changes for the different model years.
Then there is the gear strength improvement listed in Service Bulletin GT-29.
Suzsmokeyallan, thanks for the insight. In researching this I happened across your videos on using a GS transmission in a GT750.
part1: http://www.youtube.com/watch?v=7W09UbbrQcA
part2: http://www.youtube.com/watch?v=XMaK_7PotD4
Definitely interesting. Don't know if it would be any easier to find a GS750 transmission in excellent condition.
Am sorting thru the issues...
My engine cases have brown color code, so I need yellow color coded 1st & 2nd driven gears.
Then there are the gear ratio changes for the different model years.
Then there is the gear strength improvement listed in Service Bulletin GT-29.
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
- Suzsmokeyallan
- Moto GP
- Posts: 4326
- Joined: Fri Oct 24, 2008 9:11 am
- Location: Mostly Barbados, sometimes Florida and western Canada
- Contact:
Re: WTB GT750 transmission
Thanks for the comment about my upgraded transmission videos. I really need to redo them and make it more detailed as there was a lot I did not include in those two videos from years ago.
For best all around riding/touring I personally like the stock 75/76 year model ratios of the transmission when also using a 15/43 final drive.
The GS 750 upgrade mainly cures the spline issues, the first to second cluck and lowers the first year so its not as tall. Given the cost of used GS transmissions on ebay its worth doing if you have the time and a lathe.
Plus its fun to re-engineer parts if you're game for such shop antics.
For best all around riding/touring I personally like the stock 75/76 year model ratios of the transmission when also using a 15/43 final drive.
The GS 750 upgrade mainly cures the spline issues, the first to second cluck and lowers the first year so its not as tall. Given the cost of used GS transmissions on ebay its worth doing if you have the time and a lathe.
Plus its fun to re-engineer parts if you're game for such shop antics.
Two strokes, its just that simple.
69 Suz U70
69 Suz T500
72 Suz GT750 cafe
74 Suz TS250
74 Suz GTXVR project
75 Suz RE5
75 Suz GT750
76 Suz TS400
76 Suz GT750
81 Suz GSX1100
86 Suz RG500x2
88 Hon CR500
93 Hon CBR900RR
98 Suz GSF1200x3
15 Kaw Ninja H2
69 Suz U70
69 Suz T500
72 Suz GT750 cafe
74 Suz TS250
74 Suz GTXVR project
75 Suz RE5
75 Suz GT750
76 Suz TS400
76 Suz GT750
81 Suz GSX1100
86 Suz RG500x2
88 Hon CR500
93 Hon CBR900RR
98 Suz GSF1200x3
15 Kaw Ninja H2