just rebuilt my 03 blaster and dont know how to prime the oil pump. there is no oil getting to the motor. how do i test the pump to see if it is working and how do i prime it so i dont blow it up?

 

Put a little mixed gas in the tank (32:1) then unplug the very small black hose (about the size of a bb) comming off your carb and see if oil comes out of it when you fire it up. If it does your pump is working. Dont forget you put regular gas back in it when you hook the hose back up. If you want I can tell you how to get rid of the oil injection completely and you can just run mixed gas. It might not be a bad idea, oil pumps are known for failing.

Welcome to the forums.

 

the thing is the blaster fired up for a couple of seconds but the oil was not running from the tank through the line to the pump. i thought there was a way to prime it so the lines filled with oil. when i got this thing it wasnt running so i did a lot of guessing about where stuff went. the oil line from the pump goes in the side , top part of the carbureator right? i probably will end up blocking off the oil pump, but i have a spare so ill try that first. thanks for the help

 

I would just eliminate the oil pump and mix up some Klotz R-50 at 50:1 .
My daughters blaster lost its pump and cost me a crank, rod and piston.

 

i thought blaster were reliable. why would u have to rebuild ur blaster after 3 yrs. if u bought it brand new?

 

The Blaster is a two stroke and the top end should be rebuilt every year or two if you put 20-30 hours on it a year. Sure, it will keep running if you don't do this, but your performance will drop off everytime you ride it.
Keep the top end fresh, it's easy to do.

The very best thing to do is to eliminate the oil pump and mix your gas.
Get an oil block off kit and don't even mess with the oil injection system.

 

how much performance loss? and what consists of the top end?. i just never heard of someone doing so much to a quad. I'mnot tech guy. so bear with me.

 

Rebuilding the top end on a Blaster consists of a piston, rings and head and base gasket. Also getting the cylinder honed.
Total cost for piston, rings, wrist pin, bearings and gaskets anywhere from $60.00 - $90.00 plus the cost of having the cylinder honed.
If you do this on a regular basis you will not have to have your cylinder bored for quite awhile.
If you fail to do this often enough, the first time you try to do it, you will have to have your cylinder bored.
My son's Blaster had never had a top end rebuild when we bought it, it was 15 years old, it still ran but didn't have alot of power.
When I rebuilt the top end, I had to have a bored to the second over to get the cylinder round again. A 2 stroke cylinder will wear in an egg shape if let go too long without rebuilding the top end.
The engine will eventually lose enough compression that it will no longer start.

 

To prime the pump you have to take the oil pump cover off. It is located on the side of the engine with the kickstarter.It is held on by four screws and is located towards the front of the engine on the clutch cover. After you remove the cover you will see a phillips head screw. Just loosen the screw and oil should run out. The blaster pump adds oil that ends up being a ratio of like 20 to 1. I would think that blaster should have had enough oil to make that blaster run a long time. I bought a 91 blaster in 03, it needed it's first rebuild. It was in need of boring , but only one size over. You may have a problem with your oil pump. Sorry for the long post.