Bimota Forum

[Hursty]

When I lock down the gas tank cap and open the throttle the motor is flat as,
open the cap a bit and away she goes, obviously its a breather problem?
The pics of the tank I have seen on here show a second small hole above the main filler hole but this is covered by the cover.
Is this where the problem lies or is it the cap itself?
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Hursty from kiwi land

[brian]

Yeah there's a breather valve that attaches to the tank above the filler cap. It has a clear plastic tube that runs down the side of the engine. It's possible that the tube has a wasp nest built in it that you may be able to get to if you can locate the tube. It runs down the right hand side. Otherwise you'll have to remove the tank/ seat unit to get to it. It's an easy job to remove anyway... you'll have it off soon enough anyway to check out the engineering masterpiece that your bimota is . If the tube isn't blocked just pull the valve apart, there's not much in it that can go wrong.
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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

[Hursty]

Thanks Brian

A little first adventure under the 6s covers for a Saturday afternoon






A few nervous moments putting the seat cowl back on but all good
now just to go for a ride to check its sorted

Cheers
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Hursty from kiwi land

[oily]

.....but did you find anything wrong with it whilst it was apart?

That does look clean and original under it's clothes
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SB6 mk1 (project mega light, big bore)
Sb6 mk2 ( Big Bore)
Sb6 mk2 ( Restored)
Sb6R fighter
Sb6 or Sb7 WANTED

[Pompey]

It does. may need suspension set up looking at the rear tyre...
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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

[Hursty]

Tires are only a week old still trying to scrub them in
Had a top road racer (down here) set a base setting on the suspension
seems better than what I had when I got it.
I'm biggish guy 110kg 6ft so he is looking at some heaver springs front and rear for me when we start the improvement optimization process.
but I'm just enjoying riding again after a lot of years off and it will take a few track days and time before I am on the edge of the tires lol


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Hursty from kiwi land

[Pompey]

Ah good man. Its a good idea to get the springs for your weight rather then dial out with over damping the front. They are very sensitive and the sweet spot is harder to find then most bikes. There is a ride height adjustment that is really easy to use at the rear end of the shock with a 24 mm socket . Undo the outer blue locking nut then wind in the adjustment nut to extend the shock pushing down the linkage and raising the back end. It does help to put more feel in the front end but with weak springs it can reduce your movement range and bottom out without enough damping. Oh, and it will also mean you have to modify your crap side stand which is covered in the forum... Worth the effort but well worth it! Have fun Hursty
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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

[SiBag]

That back tyre doesnt look that bad.
Mine is only worn a little more than that (abot 12mm from tyre edge) But I do ride like a girl and still re-learning how to dide quick. lol.
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Si...
SB6..CCM R30...GSXR-750-M...RGV-250-VJ22.. GSX-1100-EFE Project....Harris Magnum II project...

If its got Ti#s or Wheels its gona give you trouble

[Hursty]

I didn't find anything obvious when I had it apart so just gave it a clean and put it back together. It's raining today so no riding for me.

Is there a trick to getting the cowling to locate cleanly when putting it back on?
It took me a while to get the front bolts holes lined up. Stressful stuff for a new dad.
Cleaned up the gas cap so it fits a little easier.
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Hursty from kiwi land

[Pompey]

one tip is to leave the exhaust and tail attached. unclip the exhaust from the down pipes, undo the 8 side bolts and 2 front ones and lift. much quicker and easier to put back on to.
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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 undo the pipes / subframe from under the seat unit. Then the other bolts and filler cap ... that way the seat stays on the bodywork.

When you put the seat on make sure the pipes are through the hole at the back then stick your fingers in there and wiggle the pipes, things should locate better. Don't do all the bolts up, when you put the front ones in press on the front of the tank and they should line up.

It's just practice really.
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Don't read everything you believe