suzukidude87
Expert Class
Posts: 228
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posted September 20, 2011 04:42 PM
Freshly built motor not picking up oil
Hello guys, your thoughts on this please, my brother has a fresh built 2002 zx 12 motor, we get it on the bike and as I always do with a fresh motor, I unplug the computer loosen the oil filter, with oil in the bike ofcourse, Im sure someone would say does it have oil in it................lol I crank the motor till oil spews around the oil filter, his engine didnt pick up oil, so we removed the oil pan, all looked good, we put the pan back on still wont pick up, took it a step further, removed the clutch basket, we have a tool that with a drill we can spin the oil pump gear, still wont pick up, removed the oil pump everything looks ok, bike still wont pump Oil, what can be the problem?????? we didnt build the motor, is there something the engine builder could have over looked?
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Bigbore4
Zone Head
Posts: 806
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posted September 20, 2011 06:09 PM
Make sure he put the oilpump gears in 
Make sure the relief was installed into the oil galley.
If the pump was installed dry it may have a problem picking up, maybe remove the waterpump and have a look before you do anything else.
At least you haven't tried to run it like some guys would.
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Bigbore4
Zone Head
Posts: 806
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posted September 20, 2011 06:11 PM
Pack some vaseline into the pump cavity, not a whole jar, but enough to seal the gears
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entropy
Moderator
Posts: 8671
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posted September 20, 2011 09:48 PM
remove the hose from the water pump and make sure the water pump is spinning.
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Bigbore4
Zone Head
Posts: 806
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posted September 20, 2011 10:56 PM
That's a good idea. Although he did say they used a primer shaft to spin the pump with the clutch out.
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Bigbore4
Zone Head
Posts: 806
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posted September 20, 2011 10:58 PM
There is also another plug opposite the relief valve, make sure that was reinstalled.
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psycho1122
Pro
Posts: 1608
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posted September 21, 2011 04:38 AM
I used white lithium grease on the oil pump rotors.
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Shane661
Needs a life
Posts: 11494
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posted September 21, 2011 05:33 AM
Make sure you have the right year of oil pump rotor in there. The A model rotor is more narrow and won't prime properly.
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entropy
Moderator
Posts: 8671
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posted September 21, 2011 10:17 AM
also IIRC there is a lil dowel in the end of that barrelwhich fits against the oil pump....
The pump drive shaft has a join that sometimes breaks...
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suzukidude87
Expert Class
Posts: 228
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posted September 21, 2011 01:39 PM
thanks fellas for all the help, we will have to do some checks, I will keep u guys posted on what we find.
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thanks GOD for blessing us with bikes!
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suzukidude87
Expert Class
Posts: 228
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posted September 21, 2011 01:42 PM
glad it was mentioned that the A models are different than the B models we were just about to take a oil pump out of a 2000 and install it in the 2002, I thought they were the same, thanks again...........
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thanks GOD for blessing us with bikes!
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880turbo
Novice Class
Posts: 34
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posted September 23, 2011 04:29 AM
Suzukidude; Just take the large engine breather hose off of the back of the airbox. Then set your air compressor to 30lbs. Turn on the ignition, and the oil light will be on. Pressurize the crankcase with the air and you will see the light go out as the engine is pressurized with oil. Do that 2 or 3 times, and then the next time you do it, once the light goes out start the engine. The zx12 oil pump is terrible about not wanting to prime. This method works great every time. Mike.
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suzukidude87
Expert Class
Posts: 228
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posted September 25, 2011 03:24 AM
once again thanks for the advice, my brother is bumming a bit about this build so he has pushed it aside for the moment, I will see if I can get him moving on it again........
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thanks GOD for blessing us with bikes!
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suzukidude87
Expert Class
Posts: 228
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posted September 25, 2011 03:30 AM
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thanks GOD for blessing us with bikes!
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suzukidude87
Expert Class
Posts: 228
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posted September 25, 2011 03:34 AM
someone asked about the primer we used to prime our motor, thats it above pretty simple, the 2 bolts just fit in the holes in the oil pump spin it with a drill, these bolts are bent cause this one fits the busa, had to bend the bolts for it to fit the 12, when I have another one made it will be adjustable..........
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thanks GOD for blessing us with bikes!
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