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By Dra O
posted a while back - it was running at one point - I have all the plastic shroud off - it's down to frame and engine now
-fuel pump: when line from petcock is attached, no fuel comes out other side to carb; the line to the carb is open (can blow through it); I thought when I cranked engine that the pump would spit out fuel on other side but it does not; I removed fuel pump and opened it up - diaphragm looks good - but internal areas had lotsa calcification build up - I cleaned this out and dried it good - the clear plastic pieces (?diaphragms) aren't broken - the spring w/ steel ball on end moves freely; am putting it back on tomorrow; but can anyone answer about the pump? isn't it supposed to pump fuel through it... to other side... to carb? puzzling
-along with fuel pump: I replaced petcock 3 weeks ago (gas tank had rusty fuel in bottom - cleaned it out prior to new petcock); when I turn petcock arrow NOT to on or reserve, fuel comes out of line; when I turn it to on or reserve, fuel doesn't come out; puzzling
-I don't know what's on back of fuel pump - it's a valve that has a hose coming out of it - looks like it goes to engine/carb - I haven't traced this out yet - what is it?
-can squirt gas on air filter and engine will run for 2-3 seconds then stop - fuel in top of carb (under diaphragm) does same
-it likely needs carb rebuild - will get to this - but something isn't allowing fuel to get from fuel pump to carb
-I THINK it has a mikuni model x carb - diaphragm is ID 26mm OD 68mm - hard to find inexpensive diaphragm, I guess because it's a model x
-last thing - I replaced solenoid due to old one clicking; I HAVE to be charging the battery or it won't start/turn over - battery just goes dead; but if charging, it'll turn over nicely; i'm guessing it's a bad battery
-any help appreciated - I've never owned an ATV before - inherited this beast from grandparent in-law
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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