GT750 starter clutch woes
Moderators: oldjapanesebikes, H2RICK, diamondj, Suzsmokeyallan
- jabcb
- Moto GP
- Posts: 4251
- Joined: Mon Dec 13, 2010 4:32 pm
- Country: USA
- Suzuki 2-Strokes: 69 T350 thru 75 GT750
- Location: southwestern Pennsylvania
Re: GT750 starter clutch woes
New plugs & it idles ok. Now to fix the brakes …
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
- jabcb
- Moto GP
- Posts: 4251
- Joined: Mon Dec 13, 2010 4:32 pm
- Country: USA
- Suzuki 2-Strokes: 69 T350 thru 75 GT750
- Location: southwestern Pennsylvania
Re: GT750 starter clutch woes
Brakes rebuilt with new pads. Put on 60 miles & it runs great.
Just needs fresh coolant & prepped for winter storage.
Just needs fresh coolant & prepped for winter storage.
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
-
- On the street
- Posts: 19
- Joined: Mon May 20, 2024 3:54 pm
- Country: Canada
- Suzuki 2-Strokes: 1974 GT750
Re: GT750 starter clutch woes
Well. The same thing happened to me yesterday. I was using the starter to check for spark, check for compression, etc. on a bike that has been sitting for 5-10 years. Wasn't really having an issue. Then, for shits and giggles, I thought I might as well spray a little quickstart in the airbox and see what happens. It fired for a split second, but then the starter stopped working. it was still spinning the points cam, but not turning the engine over.jabcb wrote: ↑Fri Aug 27, 2021 5:30 pm The nut was loose. Apparently wasn’t properly torqued down.
GT750_1970 by jabcb, on Flickr
After i took the right cover off i saw that it looked the exact same as your's. The nut has backed off and the woodruff key was sheared. I was glad i had found this thread before i started taking things apart.
I saw the discussion about torquing that nut. The trick is to use something soft (folded shop towels) and wedge it between the two gears at the top right in the back. Worked very well and I got it to 40 ft/lb without issue. I just hope it doesn't loosen up again...
- Alan H
- Moto GP
- Posts: 3182
- Joined: Thu Feb 16, 2012 11:50 am
- Country: England
- Suzuki 2-Strokes: 4 x GT550s - J, M, A, B.
- Location: The Republic of South Yorkshire
Re: GT750 starter clutch woes
The joys of 50 year old bikes eh? I feel your pain.
Think of how stupid the average person is, then realise that half of them are more stupid than that.
- jabcb
- Moto GP
- Posts: 4251
- Joined: Mon Dec 13, 2010 4:32 pm
- Country: USA
- Suzuki 2-Strokes: 69 T350 thru 75 GT750
- Location: southwestern Pennsylvania
Re: GT750 starter clutch woes
As I mentioned in one of the posts, Suzuki used red paint as a thread lock. I used Loctite.
Didn’t think of using a rag when torquing the nut down.
Used an impact driver. Pretty easy to get enough torque without doing anything to stop the turning.
Didn’t think of using a rag when torquing the nut down.
Used an impact driver. Pretty easy to get enough torque without doing anything to stop the turning.
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
-
- On the street
- Posts: 19
- Joined: Mon May 20, 2024 3:54 pm
- Country: Canada
- Suzuki 2-Strokes: 1974 GT750
Re: GT750 starter clutch woes
yeah, once you get the torque limiting extension for it!
I missed the part of the loctite, i guess i'll go back in!
- jabcb
- Moto GP
- Posts: 4251
- Joined: Mon Dec 13, 2010 4:32 pm
- Country: USA
- Suzuki 2-Strokes: 69 T350 thru 75 GT750
- Location: southwestern Pennsylvania
Re: GT750 starter clutch woes
Agreed.
I tested the torque limiting extensions before deciding which one to use.
Supposedly, their ratings are based on using an old school compressed air driven impact driver.
The torque they deliver with cordless impact drivers varies depending on the driver characteristics.
I tested the torque limiting extensions before deciding which one to use.
Supposedly, their ratings are based on using an old school compressed air driven impact driver.
The torque they deliver with cordless impact drivers varies depending on the driver characteristics.
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
-
- On the street
- Posts: 19
- Joined: Mon May 20, 2024 3:54 pm
- Country: Canada
- Suzuki 2-Strokes: 1974 GT750
Re: GT750 starter clutch woes
They seem like a good tool to I have. I might grab one eventuallyjabcb wrote: ↑Sat May 25, 2024 5:46 am Agreed.
I tested the torque limiting extensions before deciding which one to use.
Supposedly, their ratings are based on using an old school compressed air driven impact driver.
The torque they deliver with cordless impact drivers varies depending on the driver characteristics.
- jabcb
- Moto GP
- Posts: 4251
- Joined: Mon Dec 13, 2010 4:32 pm
- Country: USA
- Suzuki 2-Strokes: 69 T350 thru 75 GT750
- Location: southwestern Pennsylvania
Re: GT750 starter clutch woes
Bluesmokebaz on eBay sells GT750 restoration info DVDs. Lots of useful info. Highly recommended.
He mentioned Suzuki’s use of red paint.
https://www.ebay.com/itm/276471236037
He mentioned Suzuki’s use of red paint.
https://www.ebay.com/itm/276471236037
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