Motorcycle Repair/Suzuki TS100


Understand may not be you area of expertise, but wondering if you could point me in right direction with electrical issue I am having.  I am restoring the bike which only has 2000 miles on it.  Bought new battery and charged up, but when I hook it up, I have no lights anywhere.  I can start the bike.  I have power to the ignition switch and then back out when I turn key on, but that is where I have trouble finding any issues. Fuse is good.  Any help where to start looking would be appreciated.

What model year is yours Rob ? And does the brake light work ? Usually it is off a different circuit than the actual lighting. If the harness is in good condition and everything is connected up then in the early 1970's model there is a resister in the line from the magneto. Check the dark green lead from the magneto where it connects to a short lead going to a green with white stripe wire in the harness that feeds to the on/off connection on the light switch. If the resister is blown, then the whole lighting circuit will be dead. Hope that helps.  

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Ian R. Sandy


I can answer restoration questions specifically about the Suzuki GT750 Water Buffalo/Kettle/Water Bottle which was made between 1972 and 1977. I may also be able to assist with some restoration questions on the Suzuki T500 made between 1968 and 1977. I will not answer questions about other makes or models. I focus on restorations - I not especially interested in 'non-stock' restorations or rebuilds.


I wrote the on-line reference manual on the Suzuki GT750 called 'A Field Guide to the Suzuki GT750 Le Mans' which is available at no charge on line. I currently own six Suzuki GT750's - a 1972 (scheduled to be restored in 2013), a 1973, a 1975, two 1976 models and a 1977. I also operate and maintain the on-line reference site 'Suzuki T/GT Resources' as well as the Old Japanese Bikes web site.

I am a member of the VJMC, the AMCA and of the CVMG.

'A Field Guide to the Suzuki GT750 Le Mans' 'Notes from the Corner' - the OJB blog 'The Suzuki T/GT Resource Pages'

Graduate of Sheridan College in Instrumentation Technology, which is interesting but not really germane to this discussion - I owned my first GT750 new in 1974 and have owned and ridden at least one now for very nearly 40 years.

Awards and Honors
My 1973 GT750 was featured as the 'March' bike in the recent CVMG-RMS section calendar.

Past/Present Clients
I am the web-admin for the CVMG, and also for the CVMG-RMS section. I am also a moderator on the Sundial 2 stroke board.

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