GL1000 timing sight glass


Information and questions on GL1000 Goldwings (1975-1979)
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SL350guy@
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Location: Coldstream/BC/Canada
Motorcycle: 1979 GL1000 Goldwing

GL1000 timing sight glass

Post by SL350guy@ »



Does anyone know if the ignition timing sight glass Honda part # HC 41335 as shown in the factory manual for the 1000 models is available anywhere—-it screws into the crankcase just under the front of the gas tank,a must have for dynamic timing—-thanks ahead of time for any information.


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Re: GL1000 timing sight glass

Post by WingAdmin »

The part number is HC63068 but it hasn't been available new for quite some time.

Some users here successfully made their own - you can see them here: viewtopic.php?p=78283#p78283
SL350guy@
Posts: 3
Joined: Sun Mar 28, 2021 6:50 pm
Location: Coldstream/BC/Canada
Motorcycle: 1979 GL1000 Goldwing

Re: GL1000 timing sight glass

Post by SL350guy@ »

Thank you very much for the information. I will have to give that a try.
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Winger1957
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Location: San Antonio TX
Motorcycle: 1978 GL1000

Re: GL1000 timing sight glass

Post by Winger1957 »

Yes, you can buy new for $16 plus shipping from Partzilla. Amazon has the same one but it costs twice as much. DO NOT RIDE YOUR BIKE WITH THIS SIGHT GLASS INSTALLED. Why, you ask? Because the oil vapor will condense INSIDE the sight glass (it has two windows) and ruin it forever. But I don't think you need one.

What I found more useful was a semi-tight point base and a big flat headed screwdriver I could tap them advanced/retard with pretty good precision. That's how I adjusted my new points because I did not have a timing light that worked. Engine literally hums now. Sounds new. And I bought a nearly-new '76 in '77 so I know what new sounds like. Love that engine. Its a real man-machine. Just a spectacular endeavor by Honda.
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Winger1957
Posts: 56
Joined: Tue Oct 13, 2020 3:47 pm
Location: San Antonio TX
Motorcycle: 1978 GL1000

Re: GL1000 timing sight glass

Post by Winger1957 »

Yes, you can buy new for $16 plus shipping from Partzilla. Amazon has the same one but it costs twice as much. DO NOT RIDE YOUR BIKE WITH THIS SIGHT GLASS INSTALLED. Why, you ask? Because the oil vapor will condense INSIDE the sight glass (it has two windows) and ruin it forever. But I don't think you need one.

What I found more useful was a semi-tight point base and a big flat headed screwdriver I could tap them advanced/retard with pretty good precision. That's how I adjusted my new points because I did not have a timing light that worked. Engine literally hums now. Sounds new. And I bought a nearly-new '76 in '77 so I know what new sounds like. Love that engine. Its a real man-machine. Just a spectacular endeavor by Honda.
SL350guy@
Posts: 3
Joined: Sun Mar 28, 2021 6:50 pm
Location: Coldstream/BC/Canada
Motorcycle: 1979 GL1000 Goldwing

Re: GL1000 timing sight glass

Post by SL350guy@ »

Thankyou to winger1957


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