[SBK Project: 2v Motor - 748/996 era Frame]

Started by junior varsity, April 06, 2010, 04:13:06 PM

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junior varsity

This thread needs pictures.

Troll Supertwin:


Pierobon F042


Kaenma Emozione SS supersmall fairing

koko64

Quote from: a m on April 07, 2010, 01:43:14 PM
That's what I was thinking.

When I first started contemplating the end of VeeTwo parts, I got a spare set of adjustable pulleys, so we are good there. I also have a set of their track grind games (-212), and torque (-210) cams, so the IE cams may end up getting sold as well. I know they are hotter, but not as hot as either of the two sets I have sitting on the shelf currently.

My local shop, AMS has a full set of STM pulleys on the cheap, so I might look into those if they replace the center pulleys as well (and not just the cam-end pulleys).

This motor may end up being a parts house, or get some use in a frame I acquire. I'm going to see if Stuart (Rust) has a spare supersport frame in his garage, and if so, I'll start looking at triples and forks, and have a rolling chassis before I can blink.

I'd really like a 2V superbike, but I'm just not sure how to make it work with my level of expertise.

Good catch on the Vee Two cams and pulleys.

41FCRs on short manifolds, porting, Igniteck and 212 race cams. [evil]
2015 Scrambler 800

junior varsity

Ha, I know. If I can get them to put together the darn lightweight primary gear set, I'll be cookin' with grease.

1KDS

What bike did the 900 come out of?
You could use a monster dss or sss or a sbk dss or sss
This is a quote from his build thread when he narrowed the cases
QuoteAnyone who's converted their Monster to SSSA using a SBK swingarm knows exactly what I'm talking about... luckily there are marks on the case where the swingarm has to be narrowed to, so I started dremeling. Once done, I faced and squared the case by hand using a specialty bicycle tool known as a bottom bracket facer, which is a simple machinist's tool essentially.
Every bike I've ever owned.

1KDS

And I really like that kaenma ss fairing, I would love to run that but I will need headlights  :(
Every bike I've ever owned.

junior varsity

Supersport 900ie (2002).

That's pretty ballsy, going at it with a dremel. I mean, i got balls, but the risk of screwing up seems great - its the cases at a crucial structural area. There's not an easy fix that I could think of if I screwed it up. Sneezed really hard with dremel running, etc.

junior varsity


1KDS

It isn't as structural on a sbk frame because the frame extends to the pivot, where a monster uses the top mounts only.  The engine doesn't look nearly as stressed in a sbk chassis...to me, there may be more engineering behind it that I don't know about.

That fairing loses something having the lights in it, but it still looks pretty good.
Every bike I've ever owned.

junior varsity

Pretty tasteful design overall, but yes, with lights no bike is as sexy (except my blessed monster)

1KDS

Why don't you just rock a monster swinger, or do you have an sbk piece you need to put to use?
Every bike I've ever owned.

junior varsity

Not sure how shock fitment would go with a superbike frame, monster/supersport swingarm. I suppose I could weld a mount, but the plan was for OEM geometry where possible.

1KDS

gotcha

do you see the marks on the case pivot that were mentioned in the quote?
Every bike I've ever owned.

junior varsity

I do. They are not symmetrical. i need to hold a sbk swingarm up next to it to see. It would also help to see a sbk case side to see what there is to do. I can't imagine dremeling into it with the bearings still inside the case... Don't see how to push them out either... Thoughts?


Getting camera out tomorrow. Alternator side case cover...off. everything looks good except the bearing that goes on the end of the alternator coil. Either I broke it, or it was broke, but little ball bearings fell out onto my floor when I flipped that case over to set it down, and the inner ring came out too. perhaps i was a little aggressive in my removal with the tool, but nothing was out of the ordinary in using it... Oh well, its only a $13 bearing and I want to replace as many as i can get to easily anyhow.

junior varsity

Alright, here are some pics of the motor's internals. everything looked good...





My sophisticated "catch-all" door mat that my wife no longer lets me put out front was employed temporarily before I could get a nice tray and some cardboard:







This motor mount looks good,
but the other side (not pictured), has a hairline fracture on the motor mount region that protrudes past the cases. It seems like an easy weld fix, but I've never had to deal with this - thoughts on risks? I want to know before I invest more time or money into any other parts.

If you've got thoughts, good bad or otherwise, share away.

junior varsity

1) Additionally, is there any hints or tricks to removing the swingarm bearings in the cases?

While I had planned on splitting the cases to have the crank balanced (and lightened, polished, knife edged... possibly) for either 94mm or 95mm pistons (944 or 964cc) and light rods, I figured this would be a good time to pull them out if they have to come out from the middle... but I was hoping to mock it up in a frame before I ripped into its guts.

The current plan is to have the heads done up, race cams put in with mbp collets, and then powdercoated (not red, unless they are MBP done up).

I was going to put in some higher strength cylinder studs when it all went back together, but I found removing stock studs incredibly difficult... Tried using two nuts tightened really tight to each other, but they would both back out when I cranked hard on it.

2) If planning to use an Ignitech ignition to make it fire with carbs (removing the "IE" designation all together), I'm trying to figure out how to use the IE timing sensor. I found a thread (http://www.ducati.ms/forums/showthread.php?t=56514) that talks about 46/2, and I'm trying to figure out how the pickup sensor works on the IE motor. Is it picking up the two "recessed" teeth on the gear pictured on the top left of that last picture? That gear has two teeth that do not sit 'flush' with the rest on the outside face, and there's also a small dot somewhere else on the gear.

Wondering if its possible to wire up that sensor to an Ignitech unit to send sparks to some dynacoils, and then to the plugs.

I figure, the other way would be to throw, if possible, a carb'd 3-phase flywheel on and set up the carb style pick-ups bracket.