77 GS400 to Cafe Project

[Englishman]

I acquired my 1978 GS400 about a month ago with the idea of doing a cafe racer to keep me busy for a few months. Bike rides and runs OK. Motor appears sound, but the rest of the little GS has had a hard life. After trolling the net and this board for a while for ideas and after many changes of mind, I have decided to do somethinmg a little different to the mainstram Cafe thing



So the idea is to take this basically stock GS400 and using the styling of my favorite bike that got away, make it look something like this


　


Some of you may not of seen or heard of the Laverda Montjuic 500. It was perhaps one of the original factory cafe/Hooligan bikes and something I would dearly love to own but beyond my reach since my move to the USA. In the late 70's back in the UK, this was fairly exotic and expensive compaired to its Jap rivals, but for me one that I now regret missing. I appreciate this project may not be to all tastes, but this is the plan.

• Overhaul/Replace; brakes, bearings, carbs, add Pods and paint or polish all metal surfaces, hex bolt almost everything........all normal resto stuff
• Shocks and Forks upgrade
• GS550 Gas tank to be beaten into a shap resembling the Lav tank
• GS450ET side covers
• Airtech Laverda Seat (I admire the guys here doing their own glass work, but not for me)
• Custom Rearsets + 2into2 exhaust - stock headers aftermarket mufflers mods to frame to accomodate all this.
• Acewell digital all in one spedo/tach (Mine are beaten up)
• Laverda or Jota Bars (Adjustable any which way)
• ....and Im sure lots more as I get into the restoration.

Progress expected to be very slow but will post progress and hang-ups here.

Mark.

[pete]

Mark, I'm in! When I initially wanted to cafe my 450E before my wrist buggered up, a Laverda 750SFC was my inspiration when I watched one race at Queensland Raceway, that was a sweet lookin' machine! Looked identical to this minus headlight etc.:



Anyways, try a 450E/S tank for style, doesn't look too far from the Laverda and you shouldn't have to bash it, but you may need to adjust the mounting for your frame.



Ignore the masking tape stripes and stuck on paper, I was just playing with some paint ideas, but you can see the general shape of the tank there, just thinking it may be more straight forward than bashing a 550 tank instead.

[Englishman]

Pete

I already had the GS550 tank on the way. Reasonable condition and price GS450E tanks appear a rare as rocking horse pooh. I do have 450E side covers already that will need a little modification to fit the 400 to make the squared off look im looking for.

I also have picked up some cans for the shorter, kicked up look to put on the headers.

Only the motor to go on the dismantle. Right now the impact driver is my best friend!




Mark

[SVSooke]

As I said in Raids thread looking at my 79 frame going Hmmmmm what to do.I will be interested to see how this goes!

[Englishman]

As I said in Raids thread looking at my 79 frame going Hmmmmm what to do.I will be interested to see how this goes!

Dont hold your breath.......this is a longer term project

Mark

[pete]

Cool, just thought I'd throw the 450E/S tank in there

Those cans should look good and yeah, glad to hear you're using an impact driver, beats the hell out of chewed out philips head screws!

[Flaming Chainsaws]

I'm in .

[herostar]

Nice project!

These old twins are a great platform for modification (cafe!)

[SVSooke]

Dont hold your breath.......this is a longer term project

Mark

Mine is longer term,got a Skunk to do first.After that I might do this,if I find a engine.

[Englishman]

OK its time for a small update. Progress is slow but I only get one day per week to work on it.

I have cleaned up the engine side covers taking two layers of silver paint off, then the anodizing layer, then corrosion and finally down to aluminum. All by hand using wet and dry sandpaper but the result before any polishing is good.



To get the shape of the Laverda tank, I found a GS550 tank on ebay that was dent free and have begun the reshaping process with a body hammer. Its been a long while since I have done anything like this but happy so far
Before…..


After….




Now a question. When you have done a restoration, what did you do with the original VIN label – Peel it off, paint around it or find another way to put a VIN number visible?


Mark

[pete]

Engine and tank are looking good! I wouldn't be game to do anything like that on a tank because I'd ruin it for sure... was hard enough for me just to bend my fork brace reasonably straight...

I just masked off my compliance plate when I painted mine, but I just roughed the existing paint up, sprayed some metal ready over it to give the POR 15 Blackcote some purchase and brushed it on... didn't get it acid dipped or sand blasted or anything like that...

[Englishman]

So over the weekend I did a little daydreaming and laid a few parts on the frame and took a break from sanding and polishing engine cases. The tank is half done for the leg indents of both sides. Next is building out the front to make it more square and Laverda looking.


One thing that I liked about styling based on a Laverda, was finding somewhere to put the tail light and license plate was obvious. With the bubble or rounded tails, lights and number plates can be an after-thought and can spoil the looks. For mine while its not true Café, I decided to use a Ducati 916 light to be “frenched” into the back of the tail. Its LED with integrated turn signals which at $30 shipped from a man in China was too good to pass on.


The adjustable Laverda or Jota bars were not a bargain, but look good and will help with riding position and steering stop....keep telling yourself that Mark!


Ahh well, back to rubbing cast aluminum with wet and dry….

Mark

[pete]

Definitely starting to take shape, and I'm definitely seeing the Laverda influence there too...

[Englishman]

So far I have been concentrating on the motor, but for a break I trial fitted a few of the larger pieces I have been accumulating for the project. Thanks to Pete for a heads up on his GS450 wheel sizes I was able to find some very modestly priced 450 cast wheels in great shape from ebay. Also I wanted to fit the Raask rearsets as they looked wrong in the box, but fitted just fine. The controls are great but the brackets are a far cry from the lightweight items on todays sports bike…..very 1970’s looking !

Anyway for those that like picture see below


..and the Raask pieces




Mark

[pete]

So far I have been concentrating on the motor, but for a break I trial fitted a few of the larger pieces I have been accumulating for the project. Thanks to Pete for a heads up on his GS450 wheel sizes I was able to find some very modestly priced 450 cast wheels in great shape from ebay. Also I wanted to fit the Raask rearsets as they looked wrong in the box, but fitted just fine. The controls are great but the brackets are a far cry from the lightweight items on todays sports bike…..very 1970’s looking !

Anyway for those that like picture see below


..and the Raask pieces




Mark

That should be a nice shape once you're done. How's the quality of the Raask sets? I've heard mixed reports...