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By Dwight Williams
Ok, so I bought this scream of a deal the other day - a 94 King Quad 300 for $40.00. It's been sitting outside with no carburetor on it for about a year. Its rusty, missing some parts, wiring is all cut up and spliced etc. No seat, no racks but the plastic is all there minus the headlight housing. Anyway, who can pass up a $40.00 quad right? I get it home and looked at the sight glass for oil level, it's about 1/2 oil and 1/2 water. I drain it, refill it and turn the motor by hand (recoil starter is missing) and it turns over just fine. I worked on the wiring for about an hour and got it to turn over with the electric starter and got enough of it sorted out to get a spark. Did a quick compression test, 70 lbs. Wet test bumped it up to 90. Ok, so rings and cylinder washed out with water for a year, not too surprised. I thought 'what the hell' and sprayed some starting fluid in it and it ran for about 2 seconds - enough to show it's got life. Since then the compression has gotten worse, I can't get enough pressure to activate the carb diaphragm, therefore no fuel pump either. The compression is now around 60.
Anyway, my question is....is it worth it to try to get this thing going? I tore the top end down today and the cam and one of the rockers is pretty worn. I figured a top end job would be about $100 or so, depending on the condition of the cylinder but I'll probably have to put a cam and rockers in it as well. Doing some research on ebay I figure I'll have to spend about $500-$700 to make the whole machine right again. Much less just to make it run and use as-is but I won't really like it until it's right. I don't mind doing the work, I actually enjoy it but I'm concerned about what all that water did to the rest of the internals, I can't really test it all out until I can make it run.
I know it's a basket case but I'm not into it much at all, even if I do the top end and find something else wrong I'm still not out much. I'm leaning toward ordering the top end parts and going from there unless you can convince me otherwise - any way to check the rest of the internals without tearing it down? I plan on flushing the oil cooler before I do another oil change, I've drained it twice now and it gets milky almost immediately just turning the starter - I suspect the oil cooler is polluted badly.
I'll get some pictures today if anyone want to see them.
It appears that the Service Manual thread at top of forum is dead as all the links no longer work. I'm actually looking for service manual for a 2000 KVF300 Prairie that I just picked up. Does anybody have link to one that they can share, or know where I can find one? Thanks in advance for any help.
By colin james
View File 1996-2000 Polaris Sportsman 335/500 Service Manual
This is the factory service manual for the polaris sportsman 335 & 500.
You can download the section you need or download all of the chapters for the complete manual
Submitter colin james Submitted 10/19/2018 Category Polaris ATV
Here is what I have collected over the years and maybe it will help someone else.
There are so many and several are too large to upload as attachments, so see any thing you need just shoot me a PM and your email and I will get them on the way to you as fast as I can.
50cc to150cc Service Manual For Tank Motorsports.pdf
1986 CH250 ELITE SERVICE MANUAL.pdf
Charging and ignition systems for atvs.pdf
Chinese ATV Frame Diagram.jpg
Chinese ATV Repair Shop Manual - Clutch Diagram - Exploded Views.jpg
Chinese ATV Repair Shop Manual - Cylinder Head Diagrams.jpg
Chinese ATV Repair Shop Manual - Torque Specifications.jpg
Chinese ATV Repair Shop Manual - Valve Clearances.jpg
Eagle ATV Fender Body Parts Exploded Diagram.jpg
Eagle ATV Rear Axle - Exploded Diagram.jpg
Piston Ring Installation 4 Stroke Engines.jpg
Trouble Shooter Guide for BATTERY DRAINED Chinese Engines.txt
Trouble Shooter Guide for NO-COMPRESSION.txt
Trouble Shooting No Crank.txt
50 to 150cc GY6 Shop Manual.pdf
Arrow 150 Engine Service Manual.pdf
Eton Shop Manual YXT-150.pdf
GY6 Shop Manual.pdf
Yerf Dog Spiderbox GX150 Service Manual.pdf
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