Norge GT 8V. What is correct headlight bulb size??

[Sgrabin]

H3? H7? Doesn't seem to be a consensus on the forum and I can't find any reference in the manual. Thanks!

 

[kiwi dave]

My notes when I once owned a Norge.

High beam 12v 65W (H1) x2
Low beam 12v 55W (H3) x2

Low beam is switched on when engine is running. High beam is added when switched on or passing flasher.

 

[Dave.N]

If you get the old bulb out the size will be stamped on the base plate.

 

[Raven]

H1 H and H3 L are correct. Sylvania has an excellent bulb finder on their website.

 

[scottmastrocinque]

“Give a man an answer, and you help him once. Teach him where to find information and you help him forever.”

AF1 Racing has the complete parts fiches online at their website.

If you go there, click on Moto Guzzi, Norge all years, and look at the parts fiche, there is a hyperlink to Headlight.

This is what pops up giving you the information you are looking for.

Being able to utilize this powerful online tool, will help you in so many ways.

 

[maverick9611]

My notes when I once owned a Norge.

High beam 12v 65W (H1) x2
Low beam 12v 55W (H3) x2

Low beam is switched on when engine is running. High beam is added when switched on or passing flasher.

when my high beam is switched on my low beam turns off. is that normal? you would think all 4 would be on

 

[scottmastrocinque]

No, it’s normal. Otherwise it would draw way too much power through the circuit and melt it.

There was a post someplace here where somebody went in and made a jumper wire between the two bulbs to do just what you were expecting, and they quickly fried their wiring.

 

[maverick9611]

No, it’s normal. Otherwise it would draw way too much power through the circuit and melt it.

There was a post someplace here where somebody went in and made a jumper wire between the two bulbs to do just what you were expecting, and they quickly fried their wiring.

thank you sir. i figured it was normal.

 

[maverick9611]

this happened to my bezel. I was putting plastic back on and at end of day this weird melting anomaly occured. I have a used one coming from eBay.

 

[maverick9611]

did the sun cause some kind of weird reverse magnifying on the bezel assembly?

 

[scottmastrocinque]

Something is amiss.

I cannot see the sun doing that no matter what.

That looks like the wrong wattage bulb and/or somehow the high and low beam have been rigged to remain on together at maximum current draw and maximum heat generation.

 

[john zibell]

Something is amiss.

I cannot see the sun doing that no matter what.

That looks like the wrong wattage bulb and/or somehow the high and low beam have been rigged to remain on together at maximum current draw and maximum heat generation.

Scott, he stated above that when the high is activated, low turn off. It is possible it is a higher wattage bulb. Also don't discount the sun possibility. It can be pretty intense where he lives. Another possibility is over reaction to condensation. But since we aren't present to actually see it we can't say for sure.

 

[maverick9611]

Something is amiss.

I cannot see the sun doing that no matter what.

That looks like the wrong wattage bulb and/or somehow the high and low beam have been rigged to remain on together at maximum current draw and maximum heat generation.

i have been driving the guzzi since june. why didnt it do it right away?

 

[scottmastrocinque]

I said what I said because polycarbonate has a melting point of about 270 - 300 degrees! Is somebody actually suggesting that the sun can heat this plastic to that temperature?

I'm honestly not sure what has happened. Is the melting from the inside of the lens or the outside?

Did you drive for a distance with your finger holding the bright light flash switch? If so, then BOTH high and low beam would be active at the same time, and this could generate the heat necessary to cause that damage.

 

[maverick9611]

i put the bike in the sun for 6 hours. i was putting on plastic. i started it, ran it for 10 min and the anomaly occurred.
i wasn’t riding it.
i didn’t have headlight on high beam or switch depressed. low beam only
i will look at it closely when i get off from work. it looks like a heat distortion. i have melted lexan guards at work to bend and the lexan will do strange things if left on on the heat. small bubbling and eventually start to change color also. i keep the bike under a carport covered. temp was 40-50f that day.

 

[scottmastrocinque]

You ran the bike for 10 minutes without air being directed over the engine to cool it?

This is not a good thing to do!

Your air-cooled 8V got SUPER HOT! I guarantee it.

 

[maverick9611]

yes the the plastic is distorted on the outside. it's almost bubblelike

You ran the bike for 10 minutes without air being directed over the engine to cool it?

This is not a good thing to do!

Your air-cooled 8V got SUPER HOT! I guarantee it.

 

[scottmastrocinque]

That has to be heat that rose from the pipes during your 10 minute idling adventure. Unless it was vandalized by somebody with a lighter in public someplace. High heat has been applied to the polycarbonate lens causing it to do that.

 

[GTM®]

yes the the plastic is distorted on the outside. it's almost bubblelike

Sorry to say, but you did that by letting the bike idle in place for ~10 minutes. The amount of heat emitted from the Norge projector lens headlights will burn your skin from a few feet away when running. They are insanely hot. I do have one used one in good condition if interested in replacing it. Link below.
What I fear more for you is the amount of engine and/or sensor damage you caused by allowing your air-cooled engine to idle that long (including your fuel kit add-ons). ~2 minutes max in cold ambient air temperatures is pushing it. Summertime is a start, allow it to build oil pressure and ride away.

Norge Headlight 10-16 Used

Good Condition.

gtmotocycles.com

 

[maverick9611]

I'm learning guys. (the hard way)
thank you Todd but I unfortunately purchased one off of eBay)
my book of stupid stuff is getting quite thick