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  #11 (permalink)  
Old 07-17-2008, 11:34 PM
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Default CARB PROBLEM - 1994 POLARIS 300 4X4 2 STROKE

<div class="FTQUOTE"><begin quote>Originally posted by: blaster24

he did say it was a 2-stroke doesnt all 2-strokes have reeds? i know my uncle has a 1998 scrambler 400 4x4 and it does have reeds! so there not the only polaris with reeds! get your facts straight!</end quote></div>

A 400 Scramble IS a 400L and so is a 03 400 TRAILBLAZER
One thing I do know is Polaris 2strokers.All the others UNLESS they have been modded have no reeds.
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  #12 (permalink)  
Old 07-18-2008, 11:49 AM
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Default CARB PROBLEM - 1994 POLARIS 300 4X4 2 STROKE

wow sorry ftwflh i thought all 2-strokers had reeds! how do these things get there fuel? i did see the 250 trailblazers also have reeds. not trying to jack your thread mmck jusy very courious now! hey again sorry ftwflh i apolagize to you.
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  #13 (permalink)  
Old 07-19-2008, 11:09 AM
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Default CARB PROBLEM - 1994 POLARIS 300 4X4 2 STROKE

Just to help further clear this up, I own a 94-95 300 4x4 and have had it torn down to nearly nothing. It has no reeds. My Dad has an 01 250 trailblazer. I have no idea about the older or newer tblazers but his has no reeds also.

And, the only time that I've had fuel in my exhaust pipe is when I left the fuel turned on. Evidently the needle valve in my carb is leaking because my entire engine was flooded and it took a while to get it started. I had to turn off the fuel and crank for a WHILE,,, in short spurts to avoid killing the starter. Then I pulled the spark plug and cranked some more. Put in a fresh plug and it fired after a few more cranks. Smoked like a diesel freight train for a while then ran normally. Needless to say, I now have a new needle and seat in the carb and I still shut off the fuel before parking it.
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  #14 (permalink)  
Old 07-19-2008, 10:34 PM
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Default CARB PROBLEM - 1994 POLARIS 300 4X4 2 STROKE

Just a quick update. I ordered a new carb boot (adapter that goes from carb to jug) and a new set of rings. Does anyone know if I can pull the jug without pulling the engine off the frame? Didn't have any fuel in the pipe....
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  #15 (permalink)  
Old 07-20-2008, 02:05 PM
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Default CARB PROBLEM - 1994 POLARIS 300 4X4 2 STROKE

Rings could be just bandaid repair. Pull cylinder (can be pulled in frame) check for seized/worn piston and rings. If piston not damaged,check piston to cylinder clearance with rings off,piston in cylinder, at bottom of piston skirt with feeler guage. If .004-.005 or over, then rebore necessary.
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  #16 (permalink)  
Old 07-20-2008, 07:01 PM
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Default CARB PROBLEM - 1994 POLARIS 300 4X4 2 STROKE

Old Polaris Tech:
Thanks for the imput. I'll do that..
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  #17 (permalink)  
Old 08-21-2008, 02:15 AM
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Default CARB PROBLEM - 1994 POLARIS 300 4X4 2 STROKE

Update on this problem... Just want to say Thanks to Old Polaris Tech. I took your advice and ordered new piston and rings. When I pulled the jug I was surprised to see the intake side of the piston nearly gone. It must of been coming apart piece by piece for a while. Nothing found in crankcase. Nothing in exhaust either unless it blew it all the way to the muffler. Anyhow, I checked the cylinder wall and just a couple minor repeat minor scratches. I honed the cylinder and put it back together .... It runs like a champ now... Also, I checked the compression after putting it back together. Still below 100 PSI. But it ran me up and down the road at about 40 mph. (didn't go far - you know how the cops are)
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Old 08-21-2008, 02:15 AM
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Tags
1994, 300, 300300, 4x4, 94, 95, boot, carb, carburetor, fix, flooded, polairs, polaris, problems, stroke



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