Gunter, I don't doubt you but I did think that the injection was sequential and I thought that meant equal squirts for each per cycle,no?

N.

The ECM supports different injection pulsewidth for each cylinder. The front cylinder got it's own map, also a temperature dependent fuel correction is applied. I can't tell from memory if front mixture is getting richer or leaner with increasing engine temperature, but I seem to remember that fuel rises also.

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"It is often said that before you die your life passes before your eyes. It is in fact true. It's called living."
Terry Pratchett

Thanks Gunter, it still looks extreme all the same. If it was set up to run like that it would feel awfull!

Do them heads hold petrol when some is poured on to the valves ist?

N.

...well they sure enough don´t hold bright light!!...checked with a flashlight when it got dark and I´m guessing it´s not a good thing that I´ve got a few mm of crack on the exhaust valves on both heads!!

A few mill of crack can be a good thing but not in this case ist

N.

...true

....guess I´m taking the motor off next weekend.

....and I bought this bike to save on insurance money,,,,already drilled out a chunk out the back rim after the wheel bearing exploded, burned out the clutch last summer and unfourtanetely let a shop take care of it which set me back a good sum, the 02 sensor died in may and the front wheel bearings gave out in june and have gone through 2 belts since i bought it a year and a half ago,,,,,,,,,,,,,,,,,,,,gotta love "Murphy"
...my next bike will with out a doubt not be a buell.

she ran quite well....had some issues when the 02 sensor failed...and that took a while, worked and then didn´t work and I didn´t have ecm-spy yet so I had to take it to a shop cause I kept getting ce-light going off and on and couldn´t read the trouble codes myself...the funny thing was the harley place I took it too couldn´t even find it...they said it was taken out.....that was the last visit there!!

If it was big end failure....wouldn´t it have been a much louder stop than just some "dinging" from the front end before hand and than the engine sputtering out and wouldn´t theyre be some form of seizure so i couldn´t move the pistons??

...and I think I owe you a beer

No need to worry about that. You won't have any money left to buy any other bike after the repairs.

If it's a big end failure, then a new crankshaft is required, if repaired by the book. Any well sorted machine shop should be able to split the crankshaft (standard procedure for allmost every 2stroke engine for decades), but making a new crankshaft pin and fixing the pushrods requires some good knowledge and no data could be found in the FM. It's all doable of course, but IMO the challenge is to find people you trust in doing it correctly.

While the engine is split it might be a good idea to replace all transmission bearings too.

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"It is often said that before you die your life passes before your eyes. It is in fact true. It's called living."
Terry Pratchett

Well were taking the engine off today so I´m hoping your wrong.....can´t afford any other options

How about putting in other engines, is it possible to replace this one with a 12 for example and then switch out the ecm and is it possible to do this with other year models....I´ve seen someone selling an 04 12r engine over here and as said if the costs start flying away that might be another option

are the cylinder heads modified sportster heads or are they the same?...found someone selling heads from a sportster 91-03 and was hoping that I might be able to mix and match

XB12 neeeds a new intake manifold, new injectors, new exhaust headers and a new silencer. 2003 ECMs (CB060 type) don't support the exhaust valve motor, so a new ECM is needed on top of that (and there's no XB12 data to just load into these, they need to get manually adjusted). Seems not like a real option to me, and you still do not know what you get and what happened to the engine before.

The belt, sprocket, pulley, rear master cylinder, idle pulley also changed from 2003 to 2004. You can't use the old type belt with an XB12 engine.

IMO it's better to get the engine out, remove cylinders and pistons to take a look at the pushrods and the crankshaft, that's not much work and will give first hints what's going wrong. As the oil pump has forwarded some debris, the oil reservoir, oil cooler and all oil lines need to be cleaned or replaced anyway, or the remainings will destroy the new/fixed engine in short time.

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"It is often said that before you die your life passes before your eyes. It is in fact true. It's called living."
Terry Pratchett

It sounds as though you would be better getting a 12 complete with intakes and exhaust manifold.
You can use your belt etc if you swap the front pulley from your bike to the new engine.
Try a few breakers and see if you can get a hold of a complete engine failing that break the bike and cut your losses.

Oh the joys of Buell ownership NOT.

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Norrie.

Alrighty...more questions and pics.

I´m told by the harley mechanic here that the pistons+crank should have some give from side to side, is this true and should the pinion shaft have some give up and down?

There is some scraping on the pistons and the insides of the cylinders (see pics) they are the same on both heads and not very deep and I´m wondering if this is normal or is it from trying to start the engine after the camgears and oilpump siezed or is it something else I´m looking at and can this possibly be repaired??

One of the vavle guides has a notch in it, it´s a little square which makes it look "machined" but non of the other valve guides have it. The valve that sat in it is bent at the bottom so it leaves about a 1.5-2 mm gap

otherwise I have yet too find any debry and no "bling" in the oil or when just looking down ito the engine with a flashlight

the last picture show´s the bottom of the front cylinder...any explanations?

If I am looking at new cylinders and pistons is there any upgrades or "kits" other than OEM

When removing the clutch before cracking open the engine is the only solution the HD special clutch comp. tool or are there other options

Thanks again for all and any help

/Michael

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If your dreams don't scare you, they are not big enough.

XB uses a needle race basket bearing so there's no need to disassemble the clutch.....once the (LH) mainshaft nut is removed the clutch hub, complete with plates, can be removed as an assembly.

That guide is cracked.
Pinion shaft should have zero movement.
Not looking good mate

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Mithered ta death.
92 MB
96 S2T
98 S1W
00 M2
01 X1
03 P3
10 CR