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Old 03-24-2011, 10:47 AM   #1
LukasM OP
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How long to remove and replace the engine?

Title says it all, just wondering if anybody has already done it...
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Old 03-24-2011, 02:21 PM   #2
JoelWisman
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Took about 4 hours, not hard on this bike.
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Old 03-25-2011, 10:54 AM   #3
LukasM OP
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Thanks Joel, that's good to know. Is there anything special to watch out for?

I already swapped the subframe on this bike and was surprised how straight-forward it was.

Cheers,
Lukas
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Old 03-25-2011, 12:50 PM   #4
JoelWisman
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Nearly every bolt that attaches the engine to the frame has a spacer, they are all different, record locations as you remove them.

The engine is sorta heavy, help from a friend and support from a jack is better then catching it with your toe.

The engine likes to cock and scratch things, tape on frame tubes is advised.

Electrical connectors aren't all keyed. There are neumerous combinations that will fit together but only one combination is advised :)

Nothing special, just normal disassembly recording and caution.

What has you dropping the motor if I may ask?
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Old 05-05-2011, 11:17 AM   #5
LukasM OP
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Hi Joel,

Sorry for the late reply, must have missed your last answer.

The reason I was asking is because I bought (another) crashed F650 twin, and it has a damaged engine. It was hit hard from the right side so that case and stator are busted, and I suspect that the crank might be damaged, too. I have a F8 engine that I am going to swap in for the time being, and will then take the original apart to see how the crank is doing. Hopefully it can be fixed, otherwise I'll have at least have a spare clutch.

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Old 05-05-2011, 11:20 AM   #6
markymcd
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while we're talking engines, do you think it's possible to swap out the cams on the 650twin and get the same horsepower as the 800? I'm sure it's insanely more complicated but... maybe not?

cheers,
Mark
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Old 05-05-2011, 11:29 AM   #7
LukasM OP
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Quote:
Originally Posted by markymcd View Post
while we're talking engines, do you think it's possible to swap out the cams on the 650twin and get the same horsepower as the 800? I'm sure it's insanely more complicated but... maybe not?

cheers,
Mark
Hey Mark,

Shouldn't be a big deal at all, the cams are in fact the only different part between both engines. And the programming of the BMS-K, that's why I was I trying to figure out if I can simply put the F8 map on the F650 computer here: http://www.advrider.com/forums/showt...2#post15834372

The only question is the timing chain, I don't see a separate rivet link listed on the microfiche. Maybe there is enough room to take the cams out with the tensioner removed?

Lukas
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Old 05-05-2011, 11:49 AM   #8
markymcd
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kind of what I would have thought.

I also wonder what would happen / not happen without changing the mapping.
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Old 05-05-2011, 12:54 PM   #9
huckleberry
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perhaps it would be more like the 8 map to run on regular?
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