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How to: Rotate your engine 2009 Buell XB 12 Scg : With Pics!
Last edited by TPEHAK; 11-25-2016 at 05:09 PM.
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Loosen two nuts on the throttle cables bracket
Remove the throttle cables bracket lock plate
Unscres two nuts on the throttle cables
Shorten both throttle cables using adjusting nuts near the throttle housing
Remove the throttle cables from the bracket
Check that all necessary cables disconnected and there is nothing will catch the engine on the way down. Carefully start to lower the engine using the scissors jack.
On the way down you can find that scissors jack will rock too much out of vertical orientation. You can use piece of wood to support the engine and reorient the scissors jack properly
Here is the picture with lowered engine
Now you can do the easiest part, maintain the rorcker boxes, change the rocker box seals, change the PCV valves and PCV valves grommets, replace the headers, maintain the manifold intake and change manifold intake seals, change the spark plugs and spark plugs wires, replace O2 sensor. Most of these things can be done without engine rotation, but replacing rocker box seals and PCV valves can not be done without engine rotation.
I see no reason to post assembling process - just do this in opposite order and follow service manual fasteners torque requirements.
The only step where you have to be very careful is when you will rotate the engine back, see that PCV valves do not slam the frame and PCV valves do not trap any wires.
Follow the service manual when you will mount the engine front isolator, you don't want to damage the front isolator bolt threads, you have to support the engine by scissors jack and find the point where you can easily screw the front isolator bolt into the place.
Also follow carefully the muffler mounting process, because of the muffler fasteners must be mounted and torqued in particular sequence. Do not reuse the muffler front strap, discharge the old front strap and attach new.
Use some soapy water when you will mount the velocity stack back on the intake manifold and when you will put the velocity stack rubber lip back on the airbox baseplate.
Use some soapy water when you will mount the breather hoses back in the airbox baseplate holes.
Readjust the throttle cables according service manual and perform throttle position sensor reset according service manual.
Last edited by TPEHAK; 11-25-2016 at 05:21 PM.
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Senior Member
That's probably the most thorough walk-through I've seen. Good job! I just did a rotation on my 1125 yesterday - I think it was easier than this...not that this is hard.
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Senior Member
^^^^ Thank you TPEHAK , I will be saving your great write up for the future.
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