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Al3x
Posted on Saturday, January 05, 2019 - 02:07 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hey guys, I got a 2004 xb12s with a mutt motor. Not exactly sure what the last owner did, but I now have something slapping around inside. Right now I'm either going to try and fix it or swap it for a motor that hasn't been dicked with. I found a 2007 motor for sale on ebay. I've been doing a little bit of research and it seems it will slip right in. I'll be able to use the old wiring harness and throttle body, ect. So is this possible? If so, what should I look out for? The only part that is different I've found so far is the oil feed lines. Any information would be fantastic. Thanks guys.
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Ishampadron
Posted on Monday, January 07, 2019 - 09:03 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I went from an 03 to an 07 XB9. The things you'll need are, an updated swing arm with oil lines and fender. I'm guessing you have the 65t wheel pulley, if so your belt will match up. You'll need the new motor sprocket cover.

Make sure the injectors on the new motor are clean and spray correctly. Mine were fouled.

I think your TB is the same the only thing that is different is the TPS on the 07 is a weird year and you can only use OEM replacements. While you have the motor sitting I would replace the TB gaskets to to be safe.

The rest is all plug and pray.
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Natexlh1000
Posted on Monday, January 07, 2019 - 10:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Don't forget that there were a few 2007 engines that had bad crank bearings that didn't show up til 35,000 miles sometimes.
If you mention this to the seller, perhaps you could chisel down the price?

I don't think anyone here determined a sure fire method of predicting what batch of engines were bad so you would have to just roll the dice.
I'm pretty sure that there a good number of 2007 bikes out there with lots and lots of miles.
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Froggy
Posted on Monday, January 07, 2019 - 11:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It was the 12s with the bad cranks, not the 9s.
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Al3x
Posted on Thursday, January 10, 2019 - 12:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Awesome, thanks for the info guys. I'll give an update when she's fixed/new motor.
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Dualsportdad
Posted on Sunday, January 13, 2019 - 11:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)


quote:

It was the 12s with the bad cranks, not the 9s.




unfortunately that is not the case. my 2007 xb9sx currently has a 05 engine because the 07 crank failed @ 22k miles. i would steer clear of all 2007 engines.
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Froggy
Posted on Sunday, January 13, 2019 - 11:37 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I never said that the 9 can't have a crank failure, but it was only the 07 12 cranks that had a bad batch from the factory. I've seen examples of 9s and 12s other various years that failed.
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Anonymous
Posted on Tuesday, January 15, 2019 - 12:48 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

07 was a bad year for HDs in general. Saw 07 XL1200 crank failures and 07 Twin Cam crank failures in my time at Pikes Peak HD.
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Phelan
Posted on Tuesday, January 15, 2019 - 12:48 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

That was me, didn't mean to post as anonymous, sorry.
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Ducbsa
Posted on Tuesday, January 15, 2019 - 06:09 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You guys stop! My 2007 XB12S is going good!
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Sagehawk
Posted on Tuesday, January 15, 2019 - 09:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ditto to what ducbsa said! If you put it out there, it could happen!
I just follow what the advice from dark horse about driveability and not worry. Btw, if I put uellymae on the market, I would not not go down on my price to a buyer on the crankshaft note. Bike wouldnt be broke at the time . Buyer is buying a used machine and they would take on the what if's.
Just saying!
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Al3x
Posted on Saturday, March 09, 2019 - 02:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ok the 07 motor was in rough shape and with your feedback I scraped the idea. I've found a 2004 XB12R motor. I've looked around and so far looks like the motor will fit right in with no issue. Is there anything I should know or search for on swapping a 04 XB12S motor with a 04 XB12R motor. Last question if it dose fit with no issue. I`m going a with the Drummer SS Exhaust on the bike. Having a reprogrammed ECM for the XB12S. I`m assuming its good for the XB12R motor of the same year?
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Froggy
Posted on Sunday, March 10, 2019 - 11:08 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The only difference between the R and S motor is the decal on the timing cover. Everything else is identical, so it is literally just labor to remove and replace the engine.

The ECM is identical too.
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Al3x
Posted on Sunday, March 10, 2019 - 03:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks for the info Froggy. I'll update when she`s back up and running.
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