Flat-bottomed headlight bucket with a round 5.75” headlight

General discussion about Street two-stroke Suzuki motorcycles.

Moderators: oldjapanesebikes, H2RICK, diamondj, Suzsmokeyallan

Post Reply
User avatar
jabcb
Moto GP
Posts: 4241
Joined: Mon Dec 13, 2010 4:32 pm
Country: USA
Suzuki 2-Strokes: 69 T350 thru 75 GT750
Location: southwestern Pennsylvania

Flat-bottomed headlight bucket with a round 5.75” headlight

Post by jabcb »

We are using a headlight from a small GS-series bike on the GT250 cafe racer project.
While working on that project I noticed an interesting possibility for T500/GT380/T350 flat-bottomed headlights.

Pic of a GT380J headlight.
Headlight part # 35121-33610. Rim part # varies depending on which bike you have.
Image
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
User avatar
jabcb
Moto GP
Posts: 4241
Joined: Mon Dec 13, 2010 4:32 pm
Country: USA
Suzuki 2-Strokes: 69 T350 thru 75 GT750
Location: southwestern Pennsylvania

Re: Flat-bottomed headlight bucket with a round 5.75” headli

Post by jabcb »

The ring for the GS-series headlight is part # 35127-29610.
Attached directly to the flat-bottomed rim it looks like this.
Image
Image
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
User avatar
jabcb
Moto GP
Posts: 4241
Joined: Mon Dec 13, 2010 4:32 pm
Country: USA
Suzuki 2-Strokes: 69 T350 thru 75 GT750
Location: southwestern Pennsylvania

Re: Flat-bottomed headlight bucket with a round 5.75” headli

Post by jabcb »

Its not possible to adjust the headlight direction because the rim is recessed too much.
So I made little test extenders that look like this.
Image

And the result looks pretty good.
Image
Image
Image

This is just an experiment.
If you are thinking about implementing something like this, then you probably should get the GS-series ring soon.
Its NLA, but last time I looked some new ones were still available.
The other little GS-series parts you would need are still available from Suzuki.

The adjuster screw for the flat-bottomed headlight is too short.
The GS-series adjuster screw is shown in the pic.
Some fiddling will be needed to get it to work properly.
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
User avatar
akendall1966
To the on ramp
Posts: 242
Joined: Sat Jun 28, 2014 1:22 am
Country: United Kingdom
Suzuki 2-Strokes: T500_MKIII

Re: Flat-bottomed headlight bucket with a round 5.75” headli

Post by akendall1966 »

Nice back light the gaps with some LEDs could look cool.
pearljam724
AMA Superbike
Posts: 1681
Joined: Tue Jul 24, 2012 11:45 pm
Country: U.S.
Suzuki 2-Strokes: 75- GT 550 / 76- GT 750
Location: SW PA

Re: Flat-bottomed headlight bucket with a round 5.75” headli

Post by pearljam724 »

I remember seeing those flat bottomed lights somewhere ? What model bikes had them stock ? I like, em.
Image Image
User avatar
jabcb
Moto GP
Posts: 4241
Joined: Mon Dec 13, 2010 4:32 pm
Country: USA
Suzuki 2-Strokes: 69 T350 thru 75 GT750
Location: southwestern Pennsylvania

Re: Flat-bottomed headlight bucket with a round 5.75” headli

Post by jabcb »

pearljam724 wrote:I remember seeing those flat bottomed lights somewhere ? What model bikes had them stock ? I like, em.
Early GT380s have a round headlight bucket & a rim that accepts the flat-bottomed headlight. The rim in these pics is for a GT380J.

T350s & early T500s have a flat-bottomed headlight bucket + a flat-bottomed rim that takes the flat-bottomed headlight in the first pic.
The mods in this topic will work on these bikes.

T250s have a shallow flat-bottomed headlight bucket. The flat-bottomed headlight doesn’t have any attached brackets.
The mods in this topic will NOT work for this bike.

Early GT750s have a modern round headlight in a flat-bottomed bucket.

Lot of other early Suzukis have some variation of these designs but I’m not that familiar with them.
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
Post Reply