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Old 02-04-2008, 04:51 AM   #1
johno OP
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Location: Mount Gambier, South Australia, Australia.
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Big Bore kit Rotax 650??

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??
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Old 02-04-2008, 05:50 AM   #2
Beez
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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
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Old 09-25-2008, 11:46 AM   #3
pegit
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more grunt

Hi the early pegaso with oversized mikuni carbs with race cans fitted will achieve 50 bhp + hope this helps
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Old 02-28-2009, 09:30 PM   #4
squirts
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rotax650 parts in oz?

Hi Johno - I need to rebuild the gear box on my 2001. Any clues for parts in aust.
squirts - Perth
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Old 02-28-2009, 11:16 PM   #5
NothingClever
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Search on the www.f650.com site, it's the modern equivalent of an encyclopedia.
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Old 03-01-2009, 07:07 AM   #6
borsiin
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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
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Old 04-17-2010, 09:12 PM   #7
Roughseas
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http://www.team-pami.com/?q=en/catalog/53/tuning_kits

Dunno if you still looking coz the original post is 2 years old
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Old 04-18-2010, 01:16 AM   #8
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Quote:
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 ?
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Old 12-21-2012, 05:16 PM   #9
TobyG
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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: (103.5*/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:

Quote:
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'
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TobyG screwed with this post 12-21-2012 at 05:27 PM
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