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PostPosted: Wed Jun 07, 2017 6:05 pm 
Still in the Driveway

Joined: Mon Apr 10, 2017 4:54 am
Posts: 3
Country: USA
Bikes owned: gt550
i have a 77 GT550 Indy with ND ignition parts. I know i need to stay with ND - Kokusan is not compatible -
Having a hard time finding a complete tune up kit NDTK 407. Does anyone out there know if a kit for a 380 or a 750 would work - as long as it's ND? I'm a newbie here - sure would appreciate it if someone could point me in the right direction -- Thanks! Bob

PostPosted: Wed Jun 07, 2017 6:35 pm 
Moto GP
User avatar

Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3045
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
Genuine parts are still available from Suzuki but they are a bit pricey.

There is an aftermarket Sudoc kit that’s cheaper on eBay.

BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
Yamaha 75 XS650
09 Triumph Bonneville SE

PostPosted: Fri Jun 09, 2017 7:55 am 
Expert racer

Joined: Mon Dec 01, 2008 2:52 am
Posts: 1081
Location: Manchester, UK
You can check the parts numbers of the contact breakers etc here: ... /index.php

I'm 90% sure that the same Denso breakers were used across all the triples, but the parts books will confirm that.

These days you're more likely to get Daichi aftermarket breaker sets. The fiber 'heels' on these are a different length compared to the Denso breakers, which has meant some people have had to open out the screw slots on the points with a rat-tail file to get them dialled in correctly. However, I never had this problem on my 380 with either Denso or Daichi points.

1976 GT380 - wounded by me, and sold on
2006 SV650S. It's got cams, and valves, and stuff

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