Big Bore kit Rotax 650??

[johno]

Does anyone know of a big bore kit for the Rotax 650(BMW F650GS)??
I like my F650GS, but wouldnt mind a bit more grunt.
I have thought about changing bikes, but like the size of what I have, and it is nimble around town as well. Had an R1150GS years ago, and while a great bike, was a bit heavy.
Not too keen on waiting for the F800GS( if it ever turns up)
Own what I have, farkles golore, so dont want to start again.
Any ideas??

[Beez]

Not sure if this will help you if you have an EFI equipped F650 but it might be worth a look.

http://www.rotax.net/ds650f650.htm

[pegit]

Hi the early pegaso with oversized mikuni carbs with race cans fitted will achieve 50 bhp + hope this helps

[squirts]

Hi Johno - I need to rebuild the gear box on my 2001. Any clues for parts in aust.
squirts - Perth

[NothingClever]

Search on the www.f650.com site, it's the modern equivalent of an encyclopedia.

[borsiin]

That engine is used for supermono racing in europe and tuning parts are avaliable untill absurdum only your wallet will set the limit....

Bigbore/stroker to 790cc, billet heads with dual FCR37 and pistons with ulta high compression will give you some 500km between rebuilds

[Roughseas]

http://www.team-pami.com/?q=en/catalog/53/tuning_kits

Dunno if you still looking coz the original post is 2 years old

[Gravel Seeker]

Originally Posted by Roughseas

http://www.team-pami.com/?q=en/catalog/53/tuning_kits

Dunno if you still looking coz the original post is 2 years old

Thats just cruel !
90 bhp would be nice, but the pricetag isn't.

I've asked this before and no one replied, but has anyone ever concidered or actually put a Rotax snowmobile engine (800 ccm) in a 650 frame ?

[TobyG]

Yes, I am bumping a 2 year old thread....
however, did anyone actually take acloser look at Team PAMI's website?

They offer 103,5 mm cylinders (you have to send them yours) and pistons.

So you'd get: (103.5²*/4) *83 = 698.31 cc

That (plus a lot more modifications, a few available on PAMI's website, too) is what the 5 TT Rallye's ran in the 2002 Dakar, by the way:

Motor: Water-cooled One Cylinder 4 Stroke engine, 103.5*83 mm bore/stroke -- 698cc, Injection, 51 Kw/70 hp at 6900 rpm, Stainless Steel Manifold and Titanium Exhaust, custom Carbon airbox with 4 air intakes, custom dry sump 3 liters (nearly a gallon!) oil tank, 2 water coolers plus oil cooler, 280mm suspension travel in front and rear, Seat Height 970 mm, Wheelbase 1545 mm, weight without gas: 175 kg, etc.

http://www.team-pami.com/cms/?q=en/node/126

http://www.team-pami.com/cms/?q=en/node/140




Just sayin'