Contact for Blackwing Eng.


Information and questions on GL1500 Goldwings (1988-2000)
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Elmobile
Posts: 224
Joined: Sat Aug 22, 2015 8:35 pm
Location: Bridgewater, Nova Scotia, Canada
Motorcycle: 1990 GL1500SE

Contact for Blackwing Eng.

Post by Elmobile »



Does anyone knows how to get in touch with Blackwing engineering. They manufacture the fork brace recommended on this forum.
I left a Messenger message on their Facebook site.
I also left a message on the Ebay address (605teresalziegler) where I purchased my brace.
No reply yet after a couple of weeks?!

The reason I ask is because I stripped one of the 4 screws during my installation and need a replacement...

Now my only grief with that is that the bolt are not the correct one for the OEM bracket. The bracket has 4 M7 tap holes with a 1mm pitch. Therefore it would have been drilled at Dia 6mm. The screws provide are 1/4-28 or 6.25mm (Mines measured at 6.20) with a pitch of 0.9mm!!! That does not give much meat to correctly tighten them. They are also longer than the OEM screws which is good. But when I hit the little bit of rust in the exposed portion of the thread, it went bad on me for the first screw... Did not even felt it!


I was more careful with the last three and even so they are not very much torqued, I feel an improvement in the steering of my rig.
I have contacted friends back home to find the proper M7 to fit but even there they are hard to find...

Cheers,



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GlimWas
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Motorcycle: 1994 GL1500 SE Canada Edition, Carbon Candy Blue
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Re: Contact for Blackwing Eng.

Post by GlimWas »

I think your holes were incorrect, not the M7 bolts that were delivered with the brace. Mine was perfect with the M7 bolts...........
Most motorcycle problems are caused by the nut that connects the handlebars to the saddle

GL1100 '80
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Erdeniz Umman
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Re: Contact for Blackwing Eng.

Post by Erdeniz Umman »

If you can't find the correct bolt, you may want to find a bolt like below, cut the threaded section and die the metric size on the unthreaded section. Or a machine shop will do it for you.
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Last edited by Erdeniz Umman on Tue May 21, 2019 9:11 pm, edited 1 time in total.

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Big Blue UK
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Re: Contact for Blackwing Eng.

Post by Big Blue UK »

2921 E Miraloma Ave, Ste 15
Anaheim, California

Call +1 714-743-3574
If at first you don't succeed, hide the evidence.

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MikeB
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Re: Contact for Blackwing Eng.

Post by MikeB »

I believe that if you want an M7 bolt, you will have to cut it yourself or have it cut by a machine shop.
The bolts that came with the Blackwing brace were 1/4-28. When I asked about the bolt size I was told "the 1/4-28 were close enough and would work fine:
I do not think he was able to find any 7x 1.0 flat head bolts commercially available. I tired looking for some too but was unsuccessful.
Another option would be to modify the fork cross piece that receives the bolts by adding nut plates.
Let us know what you find and what you end o\up doing.
MikeB
1998 - GL1500 w/184,500 miles ~ 2017 - GL1800 w/13000 miles
USAF Avionics Communications Tech - 18 Years / Flight Engineer C-130E - C-141B - 6 Years. Retired.
Industrial Maintenance Tech - 22 years.
Retired in Tacoma, WA

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Elmobile
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Location: Bridgewater, Nova Scotia, Canada
Motorcycle: 1990 GL1500SE

Re: Contact for Blackwing Eng.

Post by Elmobile »

Thanks to all for the suggestions.
I could find just one link for the proper bolts where the distributors is located in France. I have someone there checking it out. Curious to see if it will come to something.
My alternate plan is to go to M8 bolts with fine tread which happens to be 1mm as well. I will have to cut the countersink a little deeper but there is enough material to do it. I’ve done before for the upper bolt of my triple tree when it let go on me.
I’ll post what my final answer is when I get there.



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