Ducati.ms - The Ultimate Ducati Forum banner

1 - 20 of 76 Posts

·
Registered
Joined
·
152 Posts
Discussion Starter #1
Last winter I built a Multistrada special out of an accident damaged 1000DS. I finished it in April and I have ridden the bike all summer… I LOVE it! Been finding excuses to just go for a ride on it!

However, there are aspects of the bike I really don’t like… first, the plastic tank… with the advent of ethanol in fuel, I can only see problems in the future… and also the electronics, already the LCD screen has failed, and some of the warning lights, which is a pain as they are a fortune.

I have been planning to build a bike that would be a “keeper” for years, and this may be it… So I have decided to rebuild it again over this winter… this time with a steel tank, a simple Electronic ignition, (Ignitech) and Carbs, yes, I know I am a dinosaur!

If people are interested I will update this thread as I progress with the build, but for now here are a few pictures of last year’s build, and a couple of progress so far…,

Here’s how it started out….



Here it is finished….



Couple from the engine rebuild…

[




Here it is now… I have cut the back end of the frame and will be making a seat unit. I have also mounted the ST4 tank, and am in the process of making a blanking plate for the big hole where the fuel pump used to sit!





Here are the carbs mounted on the home made manifolds, which need finishing. Carbs are slightly offset to allow use of a throttle position sensor to fit on the end of the spindle. Took hours to make the manifolds from scratch!
Not sure yet if I will make an airbox, or use POD filters…


 

·
Registered
Joined
·
14 Posts
So the 2nd photo is the finished bike? Or is still in progress? Either way, looks awesome. Can you post more photos of the finished one?
 

·
Registered
Joined
·
152 Posts
Discussion Starter #3

·
Premium Member
Joined
·
3,368 Posts
What don't you like?... I think the front looks fantastic. The only thing I might change is the chunky tail... but maybe that's not easy to do with the tank going to the back.
 

·
Registered
Joined
·
152 Posts
Discussion Starter #5
A bit more progress... I have decided to go for pod filters, took the easy option! I have finished the the tank blanking plate, save for putting in a couple of outlets. one will go to a vacuum tap, the other will have an ON/OFF tap. that way I can use the tap as a reserve if the inlet for the vacuum tap is a lot higher. I can do this bu unseeing a filter in the tank. I have started the work on modifying the frame to have a removable rear subframe, this is tacked into place and can be fully welded when its easier to turn the frame. next job is the seat, so the subframe arms are movable at the moment. trying to decided on a side of under seat exhaust at the moment, which will influence the seat.

Also managed to find an alloy front mudguard in a style I like... made out of 3mm alloy, its a work of art, makes me want a wheeling machine!






 

·
Premium Member
Joined
·
3,553 Posts
Those long intake manifolds should work well with the 1000's low end power. I would think they will drop power above 7500-8000 but the long stroke motor is more of a 4000-7500 motor anyway. You should ditch the CV carbs for some mechanical slides though. I will not be surprised if it makes more midrange power than the short manifold injected bike did.

Keep up the good work!
 

·
Registered
Joined
·
152 Posts
Discussion Starter #8
One of the reasons I got the tank cheap on Ebay was it had been welded on a seam in the past… it was a poor repair using MIG and had leaked, so I blended it in with the TIG welder. It looked OK, and I was not going to bother dye pen testing it as its a 20 mile trip to my mate with the kit… so glad i did! there is a pin hole which immediately showed up as soon as the developer was sprayed on!

 

·
Registered
Joined
·
152 Posts
Discussion Starter #9
I have finished tacking up the rear now and finally pleased with the result. Decided on rose joints rather than the home made ones... the frame hoop was quite difficult as I couldn't find any dies the right size for the pipe bender. In the end I resorted to the old method and welded a cap on one end of the pipe and a nut on the other. I then filled it full of sand and compacted it with the bolt. it then bent a treat with no kinks!

next step is to make the seat from scratch



 

·
Registered
Joined
·
189 Posts
I look at that vertical back side of the tank and it gives me concern. I’m reminded of a Hodaka Combat Wombat and a particularly bad incident with my man berries. Of course, that involved an ill fated MX jump. My suggestion is to keep at least one wheel on the ground. ��
 

·
Registered
Joined
·
152 Posts
Discussion Starter #11
early on while i was thinking about how I wanted the bike to look, I had a vision of a bit “Old Skhool” and decided I wanted a round headlight, and a seat hump like the old cafe racers, I know it wont be to everyone’s taste, but what the hell, this build is for me so I wont sell it on…. here is the seat construction beginning… I have made a few like this in the past… I start with a sheet of insulation, where I peel the foil off to make it easier to work with. I glue the blocks together with contact adhesive, and then shape it roughly with a bread knife. then with a block and some 40 grit sand paper, I sanded it to shape. the whole thing took around an hour to do, it sands VERY easily. Next stage is to skim it with bodyfiller, and then cover it with fibre glass. some people go straight on with the glass, but I prefer a final finish with the filler. its a method I have used before to good effect. In fact I did conciser making a tank as I have done before, but its a complex shape underneath. here is a few pictures of my last effort using this method of construction...







 

·
Registered
Joined
·
275 Posts
+1 on the Hodaka Smashed Nads Syndrome, back in the early 70s...

I read an interview with Mick Doohan once where he referred to nearly high-siding, getting kicked out of the seat and mashing his "wedding tackle" in the process. Interesting turn of phrase, and it stuck with me. He's a better man than I...he saved it at 100 mph+ and continued racing.

My Hodaka instance occurred at maybe 20 mph...I did not crash instantly, but came quickly to a controlled stop, then keeled over clutching me nads... and lying on the ground for a while...
 

·
Registered
Joined
·
152 Posts
Discussion Starter #14
a little bit more progress, been away a few days so not too much! the seat is more or less finished and is placed on the bike. I turned my attention to the exhaust. I initially mocked up and under seat one, but I didn't like it, so in the end went for a nice and simple reverse cone mega... old school.

I wanted to mount the front mudguard and bought some tube to make the stays... but forming the ends in the vice didn't look good, so I made a couple of tools to form rounded ends on. it worked rather well!





 

·
Registered
Joined
·
152 Posts
Discussion Starter #15
there has been a bit more progress over the last few days...I have mounted the battery under the tank, and put the coils and solenoid on the battery box, which is rubber mounted on four grommets to insulate it from vibration. I have finished off the mudguard mountings, and also the mounting to support the exhaust.

the silencer has been a pain.. I bought it off Ebay new, the seller described it as stainless steel. when it came, it looked good, so I stripped it apart and chucked the cone into some thinners... this stripped all the paint off. a this point I suspected it was mild steel, turns out it is! so for now, I have painted it with silver VHT paint and it looks OK. I may decide to have it chrome, or even black. the seller was very understanding and refunded my £21! thought it was cheap!

I was going to mount the fuel tap which I have bought (its fitted to a Suzuki 1000 Bandit) nut there is not enough room for it, so I will have to think again... I want a tap with a reserve if I can...

I have now started mounting the electrical components and will soon start the the wiring, a job which I quite enjoy. just got to mount the headlight first...






 

·
Registered
Joined
·
152 Posts
Discussion Starter #16
been busy the last few days making the speedo housing and mounting the headlight. I am using one of the digital rev counter and speedo's. this single unit contains all the functions I need and is fully configurable too... and quite cheap at £25. it didn't look that good though, so I made a housing to fit it in and keep the wires tidy.

to make the housing I rolled some sheet alloy (couldn't get the right size tube...) and welded the joint. I then spun an end in the lathe using the same material. this is an interesting process (and old as the hills!) where you form the metal by spinning it and applying force as its turning. I used an old bearing on a tube to save marking the alloy. it came out rather well.

I really am loving my new welder!






 

·
Registered
Joined
·
152 Posts
Discussion Starter #17
jobs for today has been to put the seat foam on the aluminium tray and sand it to shape before sending it off to the trimmer. I was able to sit on the bike and get it to the shape that suits me, which is nice. the trimmer will add 15mm of soft foam on top and contour it in, before trimming it in black.

Best laid plans with the fuel tap… it was going to go in the plate that fills the hole where the fuel pump fits, but there is not enough clearance so I resorted to remote mounting it. its actually better as I can get to turn it on and off easier. the two inlets are so I can come off two pipes in the tank to give me a reserve facility.the tap is off a Suzuki Bandit 1000.

on projects in the past I have always soldered the connections, but this time I have gone for crimped joints, they look neater, and also as my mate always says you never see a soldered joint on aircraft wiring!




 

·
Registered
Joined
·
152 Posts
Discussion Starter #18
been a little while as I am having to take a break to do some house DIY… but I managed to sneak in the garage and make a cover for the front of the tank. It took a while to plannish it out of some 2 mm alloy as its a complex compound curve, but i got there.

I was going to use keyless ignition as I have used on the last few builds, they are cheap and work well… however the brief on this build was as simple as I can make it, and it does not come more simple than a key operated switch! when I put it in the cover it didn’t look right, so I made a tool to emboss around the switch, which worked quite well…



 

·
Super Moderator
Joined
·
8,174 Posts
It looks real nice, and your workmanship is very good!
Still something bothering me about the look.. Not sure what it is.
Either the tank is too big and angular for a caferacer/oldschool bike (maybe the old Monster or Sport Classic tank?)
or its the handlebars that are too wide (Maybe look at dropping the forks through and mount clipons on top of the yoke, like the 1999-2003 SS? Then drop the rear rideheight about the same, the susension travel is pretty extensive on the old mts if I remember correctly)


Regardless, it looks very nice, and it could all be angles.
 
1 - 20 of 76 Posts
Top