o4 and o7 engine

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Aug 8, 2008 | 11:41 AM

timmma2229

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Stage IV

Joined: Dec 2007

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o4 and o7 engine

Are the 04 and 07 engins swapable. I know 07 fuel injected but if you change intakes to 04 carbs can you use it?

Aug 8, 2008 | 04:11 PM

sastrac

Intermediate

Joined: May 2007

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From: Milwaukee, WI

As far as I know, the engine itself is the same. Why are you thinking about changing it out? you might just as well spend the money on a stage2/3 upgrade to your existing motor and get 90-100 hp out of it then.

Aug 8, 2008 | 07:00 PM

Bago

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Joined: May 2007

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From: Staten Island, NY

Doable

http://www.amm.haan.de/Carb/carb.htm

Aug 8, 2008 | 07:12 PM

creekhed1

Road Master

Joined: Jul 2008

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From:

That links page says "From EFI to Carburetor Upgrade". Isn't that an OXYMORON?

Aug 9, 2008 | 09:03 AM

Bago

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Joined: May 2007

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From: Staten Island, NY

Doable

I thought it was weird too, But would they call it "From EFI to Carb downgrade"

Depending on the components and the tune a lot of carb bikes are very similiar to EFI bikes on most of the Dyno reports I seen.

Aug 9, 2008 | 09:43 AM

Flatlander

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From: East Central Illinois

Most definately an upgrade.

Aug 11, 2008 | 11:32 AM

timmma2229

Thread Starter

Stage IV

Joined: Dec 2007

Posts: 4

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reason for the engine switch is. something went in the bottom end of my engine and now it knock loud like sob. was qouted by to 2 diff shops it would be around $3000 to replace and won't start on it till winter.