911 706cc doa

The orifice at the base of the head supply tube being plugged is popular.
Michael Morse claims a flat track racer made it through a season with a plugged up head oil supply..
 
Well i belive i found my problem i think my oil pump went out n i didnt realize where i dont have a tach any more but bet ur ass on whos getting a shinny new one but then i looked a bit closer n seen this none of my othe motors have this
 

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So i found my problem 100%
 

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Personally I wouldn’t reuse it, because if it were to fail again that would suck as much as it did this time.
 
When the bike is back on the road get a rev-counter................I see it has been deleted from the bike. Not only does it show how many reves the bike is doing, it is also an oil pump warning system.............

If the rev counter fails it is one of 2 things...1; the cable has broken.......2: the oil pump has failed........or, 3; if the gauge fails..........

looks like you rode the bike for some time to do that much damage to the rockers

I'm no sure, someone will know, if the tachometer is eliminated does the gear that drives it have to remain in place in order for oil pump to operate?
 
I'm no sure, someone will know, if the tachometer is eliminated does the gear that drives it have to remain in place in order for oil pump to operate?

No ........the shaft can be taken out...........

because the XS650 hardly creates any oil pressure when warmed up, a pressure gauge is all but useless, so a taco is about the only thing that can indicate a broken oil pump.
 
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