polaris trail blazer 250 2 stroke

[gatorschevy]

just picked this one up and was wondering how you know for sure the the 2-stroke oil is going into the motor? I don't want to blow this thing up; I know I can unhook up the parts and just mix it myself but that's another can sitting around

[Mech]

If it has an oil pump and auto lube then, you can probably move the oil injection pump's control a little and check the smoke increases as you rev it a bit. The pump probably has a bleed screw/bolt too for bleeding the system if it's been dry. You could undo that and check the oil's getting through.

And the last and best way is to drive it and look back every so often and check there is smoke..haha.. More smoke after a bit of boosting and less when it's just ticking along.

[gatorschevy]

thanks for the reply I don't know much about 2 strokes the ones I owned back in the day I just mixed the fuel

[Mech]

I'm not familiar with that bike but if you follow the oil lines from the oil tank down to the motor, you will I think find an oil pump, under a cover, but pretty easy to access for bleeding. Most of the pumps are controlled by a cable, and if you pull the cable a little it should increase the amount of oil going in, and make more smoke. There's also likely to be a scribe mark on the cable's wheel to be used to adjust the pump to the throttle setting. Best read the manual to check what that mark is meant to line up with, and whether it's at full throttle or idle. 

[Diyguy99]

I recommend mixing the oil and gas.  Blew our 250 up 3 times and if we would've mixed from the beginning we'd have more money!

[Gwbarm]

I also recommend mixing oil with gas, pumps fail and then engine seize, but they have been around for a while and seem to be reliable, you can check it by unhooking the oil line from the carb and measure how much it is putting out, but only after you have put premix into your ga tank. tank.

[SalvatoreHernwood]

I’ve had 2 of these. Great fun quads and will also recommend to bypass the oil pump. These were known to not give the right ratio even when working properly. If you are riding and the pump stops working you’ll find out when the engine seizes. No worrying if you just pre mix.


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