Has anyone done a dual headlight mod on their C650GT?

I really want to do this mod because I did it on my Zuma 125 and it worked fantastic. I bought some LED bulbs and light was night and day difference(no pun intended). If you got any ideas please chime in!
 

Lee

New member
I added the Clearwater Darla's on my 2016 C650GT, and the added illumination at night is outstanding. I also added the yellow filters to them and keep them on while day driving as running lights for extra visibility to other drivers. There are lots of deer where I live, so the added IMG_0885.jpgperipheral light at night helps.
 

Mlg

New member
Hi, ok this is how I’m going to attempting to do it on my 2018 C650GT. Both headlight bulbs are exactly the same, H7 55w 12v; what makes one highbeam and the other one low beam is the angle of the buckets. The one on the right side is amied upward, were the one on the left side is aimed downward ... ( this is when you’re looking at the front of the bike ) First thing that needs to be done is you need to change the angle of the highbeam bucket to match the one of the low so there both aiming downward... Next the lights have to be replaced with H4 35w 12v, ($8) and you also must get the H4 felmale plugs ($8) to match them. The H4 plug will have 3 wires off of it; 1 ground, and 2 hot wires, one low beam, one hi beam. The rest is really easy; the hotline wire to the left side of the bike is the low beam wire. The hot line on the right side of the bike is the high beam wire; theses need to both be split. The H4 plug wire may indicate which one is highbeam and which is low beam. If this is not the case then the element towards the front of the bulb is the low beam and the element towards the back of the bulb is the highbeam, use a tester to find the continuity in the wire which will point to which elements is the one you need for highbeam and low beam... Next attach the hi and low beam wires you split to the corresponding wires on the H4 plugs... This is how I’m going to attempt the procedure; will let you know if it works...
FIY... In the dual high and low beam headlight, the bulb is what determines high and low beam not lights bucket itself...
:)
 
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Mlg

New member
I placed a wiring diagram below, and the back of the headlights showing how I cut the lights leaving only the flat part of the bulb so the clip would still hold them in; the clip are hard to clip in the first time needle nose pliers are needed. also note the two dials under the lights, theses are for adjusting the height of the beam, only turn the down High beam bucket to match the low beam bucket, and then adjust the light afterwards. I did this by putting the bike on the center stand close to a wall after it had been reassembled then adjusted what was the hi beam side to match the low beam side. Also note that the H7's are 55w and the H4 are 35W as not to over load the system, "not" recommend to use H4 55w!



 

TwoPort

New member
So, if I understand this. The mod has low beams on all the time and the high beam hits a 2nd filament for more light? I'm kinda simple. I leave the brights on all the time which simply has both bulbs on all the time. I've never been flashed by oncoming traffic so they must not be too bright.
 

Tony

Member
Great mod.. The thing I hate the most about my scooter is the dual light setup where it looks like I'm always riding around with a burnt out head light. I hate it and will never purchase a vehicle with that setup again
 

Pappy13

Member
MIg, did the H4 bulbs fit without difficulty into the H7 spaces?
He said they fit in his post, and I want to remember they have the same flat side the H7 does, but something didn't seem right so I went to the garage and looked....the H7 circles are much smaller than the H4 or HB2, the OP_ did say he had to use needle nose pliers the first time, he seemed happy with the results but I never saw a post about driving at night after his modification, just the daylight pictures of both on....I carry a spare with me in case one goes out, I can't see me trying an already tedious job on the side of the road in the dark trying to get a lamp to fit a hole it wasn't designed for. I did buy some of the Oshram H7 that I may get to install this weekend, and the very first thing I did to the bike when I purchased it was to adjust and aim the headlights, when properly aimed they do a good job, better than the last 4 jap bikes I've had although the daymaker in the VTX1800 did a great job.
 

EvilTwin

Member
Back in the day I worked for a company that designed and built headlight assemblies for cars and trucks. Part of the design process was to model the reflector to the bulb so that it put the light where it was needed and not blind oncoming traffic with glare. This was all part of the DOT certification process that all manufacturers had to comply with if they wanted to sell their vehicles in the US. If you were to substitute a different type of bulb like HID or LED then while it might put lots of light out front, there is no guarantee that it isn't putting out so much glare that it affects oncoming drivers. But lots of people swap out halogen bulbs for LED's this day and good or bad, thats what goes down the road.

I ride with brights on during the day like many folks do for visibility. Doesn't make much difference to me that one or both lights are lit up. Besides using brighter bulbs which are perfectly fine, I would think about adding some driving lights if I did lots of night driving on dark roads.
 

DrCohen

New member
Back in the day I worked for a company that designed and built headlight assemblies for cars and trucks. Part of the design process was to model the reflector to the bulb so that it put the light where it was needed and not blind oncoming traffic with glare. This was all part of the DOT certification process that all manufacturers had to comply with if they wanted to sell their vehicles in the US. If you were to substitute a different type of bulb like HID or LED then while it might put lots of light out front, there is no guarantee that it isn't putting out so much glare that it affects oncoming drivers. But lots of people swap out halogen bulbs for LED's this day and good or bad, thats what goes down the road.

I ride with brights on during the day like many folks do for visibility. Doesn't make much difference to me that one or both lights are lit up. Besides using brighter bulbs which are perfectly fine, I would think about adding some driving lights if I did lots of night driving on dark roads.
My personal observation, when a bike comes at me with high beam during the day, is that I see only a blob of light. I can't tell how close, exactly what direction, how fast it's approaching, or if it's signaling a turn. And the glare discourages me from looking. The most visible and noticeable bikes I see have 2 small-diameter LED driving lights spaced well apart, plus 1 or 2 low-beam headlights.
 

pneuby

Member
I use the flash-to-pass function to awaken those drivers perpendicular to my right.
At night, I've got a crap load of the reflective 3m black-tape on the black parts, and
some pieces of white solas tape, also.
 
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