Bimota Forum

[oily]

Time to have a look at reducing the gargantuan amount of play in the gear change lever...........



I wonder if someone out there in engineering design land could explain how/why/what this totally inadequate design managed to slip through the net and make it into production........



The bearing surface is aluminium on aluminium so as soon as you add a little lubrication and dust/grit/road dirt you have a wonderful substitute for.........grinding past



I can't understand the aluminium nut of which I have a total of 11 on my bikes and amongst my spares. 9 of them have split

Short of a total redesign (which might yet happen) I've cleaned up and took a skim off the very worn foot peg, made a stainless nut which should last longer without splitting and now I need to turn a new, oversized "top hat" collar and whack a thread on the end for the new nut......



and everything should be back in factory tolerances (measured to the nearest inch).
I'll probably turn the collar tomorrow

[Pompey]

good man. keep it going, needs to be finished by July
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Pomps
Bimota's Db2, Db5 ,Ducati's 851' 92, 888' 93, Honda blade' 93, Triumph speed triple' 07, kawasaki zxr 750 k1

[Evilchicken0]

I thought a large round collar is a turtle neck
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Don't read everything you believe

[brian]

Hey oily, just curious... how many klm's / miles on this SB6? I'm just wondering when i can expect bits like this to be worn out on my SB6.

Cheers,
Brian
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'99 DB4 #104, '96 SB6 #1165, '94 DB2 J #652, '99 DB4 #088, '08 VTX1800, '93 ZXR750R M1, '95 ZXR750, '95 ZXR750 Race Bike, '94 CBR400rr NC29 Race Bike, '94 CB250, '49 BSA C10 250, '61 BSA A10 650, '89 ZXR750, '91 Ducati 851

[oily]

This is a mega high mileage SB6...........bout 12K

I think Bimota built their bikes like race bikes.....needing a total rebuild every season
Typical Italian, they look really good...............
BUT...all the little things are designed badly and the wrong materials are used rtc. etc.(which makes you wonder why they are so expensive) but that's what stops them being boring
Half the fun is re-building them PROPERLY

[MARTIN]

Going back to the coolant pipes.I notice that mine and others,the small hose from the thermostat body loops onto the metal pipe that is connected to
the top radiator hose feed.

Yet in the SB6/
_________________
Marty
State of the art and leading edge of cocking things up

(00) SB6 (95) HD FXDWG STRETCH (01)GSXR1000K1

[MARTIN]

Going back to the coolant pipes.I notice that mine and others,the small hose from the thermostat body loops onto the metal pipe that is connected to
the top radiator hose feed.
Yet in the SB6/SB7 diagrams it shows the "bypass" hose connecting to a t-piece on the bottom radiator hose to water pump.

Was this a mod for the SB7

Looking at what I (we) have, it would seem,what ever state the thermostat was in bypass or full open there would be no difference.

Yet by diagram, on bypass (cold?) water would flow around only engine not radiator, and when open (hot ?) would flow to radiator.

Is my logic wrong,I await wisdom !!!
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Marty
State of the art and leading edge of cocking things up

(00) SB6 (95) HD FXDWG STRETCH (01)GSXR1000K1

[oily]

Are we bored Marty?
All we need to know is that it's a Bimota design backed by top secret theory

Firstly, are you looking at the SB7/6 parts list with 03/96 date on the front cover?

if so there appears to be a lot of parts in there that were used on the gsxr but not on the sb6 (I know little about the sb7).
The pipe you refer to is as you say, the thermostat bypass to ensure a trickle flow of water around the system when cold. It's fairly irrelevant where this hose comes from or too as long as it bypasses the closed thermostat and allows the engine to warm quickly.
A lot of car (much larger) thermostats have a hole drilled in them to act as a by-pass but Bimota has used a minute (moped?) thermostat compared to even the GSXR, maybe that's why they use such a large bypass hose.

To answer your question........
Yes, your logic is sound.
In theory, the diagram would work better than what we have been given but I suspect the system was modified to reduce overheating with such a small thermostat

[oily]

Just studying the coolant diagram further (dia 20) and, correct me if I'm wrong, but it shows the battery's being vented into the cooling system and vice versa

perhaps proof that we shouldn't take the parts diagrams too seriously

[MARTIN]

Yep I am bored, run out of funny stories to read

As my batteries have no vent on them (sealed units) overlooked that part
but the arrangement on the diagram may keep your battries nice and warm,or introduce an nice acidic level to the coolant to keep those internal pipes nice and clean
_________________
Marty
State of the art and leading edge of cocking things up

(00) SB6 (95) HD FXDWG STRETCH (01)GSXR1000K1

[oily]

Been a bit neglectful on this project since before Christmas really, due to weddings, holidays, hospitals, work, family, searching world wide for another Bimota etc, etc...............

BUT...

we may be back on course now that I've collected the carbon rear wheel from my machinist and the loom has dried out. I've got a few days off work now, so watch this space.......................

[Pompey]

I hope so. Its all I can look forward to for the next 5 months!
_________________
Pomps
Bimota's Db2, Db5 ,Ducati's 851' 92, 888' 93, Honda blade' 93, Triumph speed triple' 07, kawasaki zxr 750 k1

[oily]

Here we go.......

Trial fit of the rear wheel with it's new disc carrier



Fit's no problem, now to get the tyre fitted and balanced and that'll be another part of the jigsaw sorted

...A word of advice to all potential wheel swappers.....

Whilst this little exercise proves, you can make almost any wheels fit almost any bike (despite Dymag disagreeing) Triumph wheels are defiantly not the best bet for adjusting to Bimota fitment

Lot of blood, sweat and tears (and wonga) went into this conversion but I'm as pleased with the result as much as the purists will be horrified

[stockcar]

looks shoite, reckon you should let me take it off your hands to stop any further offence...........

[Gregorio 998S]

wow!

I can just say that impressive amount and quality of work was invested to this bike.
would you post some pics and measurements of the spacers used on the front and rear wheels?
what are these Dymags originally made for? a 999 line Ducati?

respect for this build!

[quote="oily"]Here we go.......

Whilst this little exercise proves, you can make almost any wheels fit almost any bike (despite Dymag disagreeing) Triumph wheels are defiantly not the best bet for adjusting to Bimota fitment