1978 GS750 - Info needed about tires, handlebar and bulb

[wolverine]

Hey All,

Just got a sweet 1978 GS750 with 16k. Now, the (oversized) tires have good thread but also have some cracks on them. What are the original sizes and what tires are recommended? Can I run tubeless?

The bike came with an european style handlebar. As I'm 5'7" I could use a little bit more reach and I guess the original one would fit? What aftermarket handlebar would most resemble the original ergonomics? Or would I be better off with something else?

Lastly, the headlight is illuminating not much more that a good candle would. What (aftermarket or not) bulb would work well?

Thanks!
Ride safe!

 

[tkent02]

Avon RoadRiders, AM26. 90/90-19 and 120/90-18 probably. Great tires.

I have a set of stock bars I would trade for those Europeans, PM me if interested.

Check the voltage to the headlight, you need to check the voltage at the charging system anyway, along with all the other neglected maintenance that all old bikes have...

Congrats, that 750 is a great bike.

 

[SqDancerLynn1]

I would start by checking for a voltage drop across the ign switch.
Headlight? Make sure the charging system is working, - convert to and H4 type headlight- Syl Superstar bulb

 

[wolverine]

I would start by checking for a voltage drop across the ign switch.
Headlight? Make sure the charging system is working, - convert to and H4 type headlight- Syl Superstar bulb

SqDancerLynn1, I found a good deal on a Bosch 7" H4 headlamp assembly. What else do I need to do to convert to H4?
Thanks!

 

[Big T]

SqDancerLynn1, I found a good deal on a Bosch 7" H4 headlamp assembly. What else do I need to do to convert to H4?
Thanks!

That's it

Just fit it in the mount on the chrome ring and plug it in

 

[BassCliff]

Greetings and Salutatoins!!

Greetings and Salutatoins!!

Hi Mr. wolverine,

Look out! Here comes a TON of information! It's the "mega-welcome!"

I just stopped by to welcome you to the forum in my own, special way.

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Here is your very own magical, mystical, mythical, mind-expanding "mega-welcome". Please take notice of the "Top 10 Common Issues", the Carb Rebuild Series, and the Stator Papers. Now let me roll out the welcome mat for you...

Please click here for your mega-welcome, chock full of tips, suggestions, links to vendors, and other information. Then feel free to visit my little BikeCliff website where I've been collecting the wisdom of this generous community. Don't forget, we like pictures! Not you, your bike!

Thanks for joining us. Keep us informed.

Thank you for your indulgence,

BassCliff

 

[Nessism]

The stock tire sizes are 3.25 front and 4.00 rear. If you have aluminum wheels you may be able to convert to tubeless but I would continue to use a tube. If you want tires slightly larger, but still within reason for your stock rims, get some 100/120 front/rear sized tires.

 

[wolverine]

What a great forum!
Thanks all for your answers and warm welcomes.
BassCliff, your page is awesome! Great work!
Ride safe and ride often,
Wolverine.