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14-1-2017 A smoking Buell X1

31-1-2017 - 14-1-2017 What did we do Today: Helping A customer with a Smoking Buell X1 And fuel adjustment for a custom build

X1 sleeping over for winter, but is drinking a little to much oil... 1 liter @ 600 km and she is smoking like a diesel truck

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plug checking first

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a little to black for my taste

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front one is wet from oil...

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so what is wrong ? we know 3 year ago this engine was overhauled by a HD shop.. removing the coil connector to do a compression test

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rear one is good

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front one a little less but nothing to worry about

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one step further... cylinder leak test, i take off the intake so i can hear the air leaking better

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notice the leaking down the base gasket ? but for now i remove the crank timing plug so i can hear the leak down by the piston rings

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top dead center compresion stroke... and tester hose screwed in

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locking the engine in gear, and putting the rear brake on , slowly turning up the pressure

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mnnn.. 2 psi loss @ 50 PSI, cold engine , not bad.. leaking by the rings as i can hear the air escape by the timing hole

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base gasket is weaping

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front cylinder is about the same loss, further inspection is needed... front head is first off

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so exhaust needs to come off... ratteling things wear very hard

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header off

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front port wet from oil.. and i cannot see the valve guide ?

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rear looks ok... valve guide sticking though the head a little

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ok striping down... fuel tank off

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1 missing screw

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first make some space to remove the front head , breather pipe counter nuts loose

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and pipes loose to remove the breather pipes

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X1 with a carb... yep... ;-)

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remove the coil to have a little space

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and removing the rocker cover

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loosening the rocker box

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as the bike is in TDC front... no spring pressure on the rockers

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pushrods out

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and removing the intake manifold

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now supporting the engine as we need to loosen the front mount

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front engine mount bolts , some one put is a low grade one ( grade 8 ) that is a little low for these the F11 specification is more... will put a strong one back in

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and loosening the head

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a little greasy

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the bore has some markings but that is not the problem

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the intake also looks oily

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taking out the valves , the keys can jump out if there sticking

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valve stem is also to wet from oil

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the guide is flush in the head and looks like there is a piece chipped off ?

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valve has also to much play

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intake valve... the valve seal was not on the sem anymore, douse not help , has also a little to much play.. i will send the head out to the machine shop , to check the press fitting on the guides... to have indication if it would be smart to check the rear head to !! really shitty when the rear drops a guide in 6000 km

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for now the rear looks good

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engine held upp with a strap... untill we have spoken with the customer

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x1 ?

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very long X1... home build project... needed some custom fuel mapping for the licence inspection, as the kept the original Fi from the X1 who better to go to ;-)

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