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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#31  PostPosted: Wed Jun 29, 2011 6:32 pm 
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STELLAR START BRAH!!!!!

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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#32  PostPosted: Wed Jun 29, 2011 9:50 pm 
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Impressive thread for sure. Great work.

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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#33  PostPosted: Thu Jun 30, 2011 3:29 pm 
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Super enjoying watching this one.

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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#34  PostPosted: Thu Jun 30, 2011 6:23 pm 
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Thanks for all the encouraging comments.
No pictures from yesterday as I spent it (mostly) repairing the battered, bent and bruised Kerker 4 into 1 pipe. The PO had added great strips of stainless over the scrapes which had to come off. I have never seen such a badly scraped pipe. Even the part under the frame was scored as if the bike had been ridden without wheels. Peeling off the "sacrificial strips" revealed a series of holes riding in close formation! Two if the individual pipes were hanging loose from the 4 into 1 part due to the electric pigeon crap welding! So it was a case of weld a bit grind a lot. repeat until done and definitely no photos (to protect the guilty). Bottom line, the pipe is sound and without holes, except where they should be and coated in exhaust paint. Also re-welded the forward engine bracket to match the frame mods above......pictures of that to follow!

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1976 GL1000 "GL1's evil twin" Supercharged cafe racer. Build thread Here
Now in Florida working for a living Ugh!.....projects on hold mostly!

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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#35  PostPosted: Thu Jun 30, 2011 6:32 pm 
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I WANNA SUPER-CHARGE ONE!!!! where to shop? how to choose the type of carbs? what options? I love this build.

Excuse me i think i have to take a restroom break and get rid of this tent i'm pitchin'.

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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#36  PostPosted: Thu Jun 30, 2011 8:25 pm 
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BigDub wrote:
I WANNA SUPER-CHARGE ONE!!!! where to shop? how to choose the type of carbs? what options? I love this build.

Excuse me i think i have to take a restroom break and get rid of this tent i'm pitchin'.



Ebay! Not very often though. There are few others with good info. Check out octane's section for a well documented build. Randakk's site also has some useful information albeit for a more modern setup. There was a kit in the 80s for these bikes but the company no longer exists in the same form. Mine is based on that kit or rather the remnants of it. I got the manifold, blower, carb and carb adaptor plate. The essential components. The rest, cooling, drive, etc., I had to figure out. It could all end in tears but I have had it running. Just how good and reliable it is remains to be seen!

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1975 GL1000 Sold!
1976 GL1000 "GL1's evil twin" Supercharged cafe racer. Build thread Here
Now in Florida working for a living Ugh!.....projects on hold mostly!

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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#37  PostPosted: Fri Jul 01, 2011 4:47 pm 
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I an looking to forward to seeing everything together. This is gonna be quite a machine.


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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#38  PostPosted: Fri Jul 01, 2011 9:52 pm 
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Holly BALLS that's a clean build! How did I miss this one? What a fantastic job.

-Deek

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1975 GL 1000 (First Year) under the knife; soon to be a cafe' inspired "Boss" of a freedom machine.


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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#39  PostPosted: Sat Jul 02, 2011 9:45 pm 
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Time for an update!

Got the cut down rear fender painted and fitted the set of unused S&W airshocks to see how it looks:

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The modified front engine bracket is now painted and fitted:

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Wiring time! Decided the ditch the reserve lighting setup. Going led anyway so it wouldn't work properly. Quick and nasty test try:

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It works so solder and heatshrink on the joints and removed all the unused wire tails:

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Here is a view of the left hand shed side....No 7v regulator, no resistors, no reserve lighting unit, no fuel gauge connection and only 1 diode left (no ballast resistor either):

Image

I also have the Acewell gauge connected up and some of the functions working. Fuel gauge works as do all the indicator lamps. Just the speed sensor and the temp gauge sender to sort then another pruning job. Pics to follow.

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1975 GL1000 Sold!
1976 GL1000 "GL1's evil twin" Supercharged cafe racer. Build thread Here
Now in Florida working for a living Ugh!.....projects on hold mostly!

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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#40  PostPosted: Tue Jul 05, 2011 12:47 pm 
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Mini update.

Did some work on the fuel sender to match it with the Acewell gauge. The results are really good. The gauge is designed to work with 100, 300 and 550 ohm senders with empty being the max resistance in each case. The sender I used was the grottyest I could find just in case I trashed it. The resistance of this one measured 110 ohms. With careful calibration I ended up with a range of 8.4 to 99.8 ohms which matches the bar graph gauge from full to empty stop to stop on the sender:

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Neatened up all the Acewell wiring and the headlamp still fits. Gauge looks functional rather than pretty:

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Put the pipe back on , oil in, plugs in and decided to spin the engine. Oil light goes out quickly so that is good news. Mounted the boost gauge and tank covers. Still not sure about the colour. It looks better than the photo suggests:

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More later

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1975 GL1000 Sold!
1976 GL1000 "GL1's evil twin" Supercharged cafe racer. Build thread Here
Now in Florida working for a living Ugh!.....projects on hold mostly!

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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#41  PostPosted: Thu Jul 07, 2011 10:25 pm 
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A couple of small updates...............

The temperature sensor as supplied with the Acewell gauge is a much smaller item than the original part. Metric threaded 10mm x 1.0mm pitch. In the land of the non-metric I am not sure why the importer takes these instead of the npt threaded variety. Gauge was a bargain so can't complain to much. Luckily the original sender (16mm threads) makes an ideal basis for an adaptor. 2 days to get the tap! and not much chance of a 9mm drill in these parts. A 'T' sized drill (whatever that is?) is 17 thou oversize and the closest to the tapping drill size. Top and tail the old sensor, drill out to 'T' size, tap the resulting hole 10mm x 1.0mm and countersink the entrance to take a standard metric 'o' ring. The result looks like this:

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Add sensor and an 8mm x 1.9mm 'o' ring:

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Seal the threads add an original sensor 'o' ring and install in the normal place:

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Last part of the Acewell installation was the speedo magnetic pickup and magnet. The sensor is bolted to a aluminium bracket at the bottom of the left hand caliper holder. The reed switch sensor is aligned along the caliper holder close to the disc and can be adjusted. The magnet is on a doglegged aluminium bracket bolted to the disc securing bolts. Both these aluminium brackets were fabricated from standard stock:

Image

Now the water jacket is done tomorrow could be start it day!

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1975 GL1000 Sold!
1976 GL1000 "GL1's evil twin" Supercharged cafe racer. Build thread Here
Now in Florida working for a living Ugh!.....projects on hold mostly!

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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#42  PostPosted: Fri Jul 08, 2011 7:38 am 
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Hello, Your bike is coming along very nicely! I have the blue and silver supercharged wing on this site. Any chance you know what idle jets are in your carb? If not please dont take the time to remove them just to tell me but I was hoping maybe you knew. I guess maybe we should see how well it runs before I ask that question. Im sure as well as your quality on this build has been thus far your bike will start and run great. Good luck!


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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#43  PostPosted: Fri Jul 08, 2011 11:40 am 
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cyclesavers210 wrote:
Hello, Your bike is coming along very nicely! I have the blue and silver supercharged wing on this site. Any chance you know what idle jets are in your carb? If not please dont take the time to remove them just to tell me but I was hoping maybe you knew. I guess maybe we should see how well it runs before I ask that question. Im sure as well as your quality on this build has been thus far your bike will start and run great. Good luck!


Been watching your thread with interest. I wasn't sure you had the same carburettor as I am using? The carburettor in this build, I think, was supplied as part of the supercharger kit in the early 80s. It is a Weber 32/36 DFV which is a mirror image of the DGV and is not very common on the internet although internally it is identical. I made a note of all the jets in it when I first got it. I have no idea if they are right or not or even if the previous owners of it put them back correctly. The video clip at the start of this thread shows the engine running with these settings but as you can see the bike wasn't up to a test run then!
Either octane or Randakk are probably the best bet for information as they both have or had de-bugged versions of what we have.

The settings I have are:
primary air compensation jet 180
secondary air compensation jet 130
primary main jet 140
secondary main jet 140
primary emulsion tube F6
secondary emulsion tube F6
primary idle jet 50
secondary idle jet 45

You can find a parts schematic for the DGV here:

http://www.carburetion.com/diags/3236DGVDiaginfo.asp

That page also has the standard specifications for the carb at the bottom.

Hope that helps. Good luck with the build

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1975 GL1000 Sold!
1976 GL1000 "GL1's evil twin" Supercharged cafe racer. Build thread Here
Now in Florida working for a living Ugh!.....projects on hold mostly!

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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#44  PostPosted: Fri Jul 08, 2011 2:55 pm 
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Wow

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 Post subject: Re: Yet another 1976 Supercharger project
Post Number:#45  PostPosted: Fri Jul 08, 2011 9:23 pm 
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Slow day today. Didn't get it running, oh well maybe tomorrow

Got the colour coordinated grips on along with the bar end mirrors:

Image

Blower drive on:

Image

Radiator back on, fan and fuel pump wiring sorted. Think the springs look better in the red orange?
Blower drive from the side:

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2 views from the front....left hand side:

Image

and the right hand side:

Image

The LED lights arrived today but the seat won't arrive until monday or tuesday. More to follow.

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1975 GL1000 Sold!
1976 GL1000 "GL1's evil twin" Supercharged cafe racer. Build thread Here
Now in Florida working for a living Ugh!.....projects on hold mostly!

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