I have a 2002 660r i just got it i went to change my oil today and the oil fill is not sucking the oil down into the crank case like its suppose to do so i had to flip the bike on its side to get oil in the case what do i do to try to fix this?

 

Here is what I do when changing the oil and filter and the motor has been warmed up.

Empty the crank case, the oil tank, install new oil filter.

crankcase oil drain bolt: 22 ft-lb
engine oil tank drain bolt: 18 ft-lb

In the oil tank I am able to fill it with 56oz of oil ,install dip stick.

Start motor and let oil draw from tank 15 to 20 sec, engine off.

add to fill oil tank to correct level on dipstick.

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Quantity called for in owners manual:

Periodic oil change 2.0 US qt.
With oil filter cartridge replacement 2.07 US qt.
Total amount 2.43 US qt.

 

This happend to my buddy's 02 Raptor. This is bad news.

This bike has a plastic oil pump drive gear. If you are not pumping oil from the tank, this gear is broke.

The the typical cause of the break is a cog from a gear in the trans that broke off, or debris from the oneway starter bearing getting lodged in the gear.

To double check that there is no oil pressure, slack the cam oil bleed screw on the right side of the motor on the cylinder head. It is a 10mm screw with a gasket. When the bike is runing, oil should shoot out. If there is no oil, do not run the bike until you get it fixed. If you just replace the oil pump gear, make sure you get all the debris out of the crakcase or it will happen again.

We ran my buddies raptor up and down the street trying to get the oil tank to suck down. We ended up siezing the motor. It cost major bucks to fix.

Sorry, man.

 

Hey man i took what you said and analyzed it but i was thinking the boy i got it off of said he fliped it on his side to put oil in it to and i have been riding it for weeks and weeks non stop and nothing has happend to it i was thinking maybe the oil lines are plugged up? what do you think?

 

My buddy's Raptor lasted a while. Days tho, not weeks. I was amazed how long. The gear actually broke on a prevous trip unknowingly. He said it wasn't running right. He thought it would get better if he changed the oil. That's when he noticed that the tank was not pumping down. We were stupid to keep riding it trying to get it down. Did not know any better at the time. The tank normally pumps down in a just a few seconds.

The pickup in the crankcase pumps oil to the transmission only. Pouring oil in the crankscase only gets oil to the trans. The oil lines from the tank go directly into the pump. From ther it goes to the filter, then the crankshaft and cam, then to the crank case, then to the trans, then back to the tank.

Crack that bleeder screw loose on the rightside. That will tell you if you have oil pressure. That's is the first thing you should do. If there is no pressure at all, you will have to pull the side cover off and check the gear. I think its the left side cover. The only real reason for no oil pressure on a raptor is the pump not turning.

It is unlikely there is a clogged line. There is a screen in the bottom of the oil tank that can load up, but it won't prevent oil pressure. The oil filter will catch any thing large enough to cause a clog. But, you never know. Maybe it is something new that I haven't heard about. (Hopefully)

 

Oil is getting to the filter and i have wrode this bike for weeks on end for hours it runs great it has never acted up i just cant understand it we usally ride 7 to 8 hours at a time long open roads and tight woods i figure if it was the oil pump it would have been done for by now wouldent you think?

 

If you have pressure at the filter, then it's probably just overfilled.

It probably would have seized up by now if you have ridden it that much.