2001 first gen hayabusa

[erob_15]

Issues with it spinning over properly and keeps flashing fi code for c11 and I've already replaced cam sensors with 3 OEM ones any advice guys could it be valve issue or just the clearance of the cam sensor ???? I took valve cover off for a visible inspection of everything and I don't see anything wrong normal signs of wear and valves look good visibly only

 

[erob_15]

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[jwcfbd]

This is from the 1999-2000 manual but hopefully it helps

 

[Kiwi Rider]

hey @erob_15 Have you checked for correct cam timing?
Check the cam sensor connector pin connections are ok at the sensor plug, also check the continuity of the wires from the sensor plug all the way to the ECU.
Could you shoot a short vid of the cranking issue . . . with your phone, upload it to youtube, then post the link on this thread?

 

[erob_15]

This is video of what it's doing and yes I've checked wire harness good and have replaced ecu as well all brand new fuel system brand new ignition system starter is brand new starter solenoid is new stator is new and rectifier is new and battery is new

 

[erob_15]

When I went to test my new ecu to see if it was the issue at first before I recorded video it sounded like it wanted to crank over properly thendidnt sounded as if it's not properly turning over and fi code flashes for same thing c11 cam sensor

 

[sixpack577]

Are you sure that all the replacement parts are for a 2001?
As 1999 and 2000, and 2002-2007 have different electronics and ecu's.

 

[Kiwi Rider]

I've never struck that starter issue before, and I've worked on thousands of bikes!
Have you tried to turn the crankshaft over by hand?
Have you removed all the spark plugs and attempted to crank it with the starter motor?
Are you sure the cam timing is correct?

 

[Kiwi Rider]

I'd be checking the starter pinion is meshing correctly to the idler gear and the everything spins freely from the starter motor to the starter clutch and thru to the crankshaft spinning freely, then the cam chain thru to the camshafts spinning freely . . the valve train etc.
Something is causing that engine to NOT turn over even with brand new starter motor and relay, ya just gotta track it down bit by bit, starting at the battery, cable connections, relay, starter, etc etc etc. Follow it thru systematically.

 

[erob_15]

I've never struck that starter issue before, and I've worked on thousands of bikes!
Have you tried to turn the crankshaft over by hand?
Have you removed all the spark plugs and attempted to crank it with the starter motor?
Are you sure the cam timing is correct?

Was about to turn it over by hand here in a few

 

[erob_15]

I've never struck that starter issue before, and I've worked on thousands of bikes!
Have you tried to turn the crankshaft over by hand?
Have you removed all the spark plugs and attempted to crank it with the starter motor?
Are you sure the cam timing is correct?

And I'm not sure if timing is correct but I do know that the chain is tight so I don't think it's skipped time

 

[Kiwi Rider]

And I'm not sure if timing is correct but I do know that the chain is tight so I don't think it's skipped time

Check the starter clutch operation… remove the starter motor and check if the starter clutch free wheels backwards and grips going forward rotation.

 

[erob_15]

Check the starter clutch operation… remove the starter motor and check if the starter clutch free wheels backwards and grips going forward rotation.

Okay I'll try that

 

[erob_15]

Check the starter clutch operation… remove the starter motor and check if the starter clutch free wheels backwards and grips going forward rotation.

Update I checked the starter clutch and it seems to be operating correctly and I spun motor over by hand and seems to spin correctly as well so I'm still puzzled ‍