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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
Looking for Yamaha ATV VIN (Vehicle Identification Number) Number Decoders? Once you find your ATV VIN number off the tag on your Yamaha ATV, you can go to all kinds of websites that have VIN Decoders available. The best ones are backed by the Yamaha ATV manufacturer, however there are plenty of aftermarket Yamaha ATV VIN Decoder websites on the web. This topic will stay pinned and if you find any to add, please do it with a reply.
The following Yamaha ATV VIN Decoder websites are available where you can just enter your VIN number and it will shows you some of your ATV model details:
NICB Theft Check https://www.nicb.org/theft_and_fraud_awareness/vincheck
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By Ben T
I purchased 2 Yamaha Raptor 125s a few months ago and I purchased a membership here to be able to access the service manual. I have looked at the service manual multiple times in the past month but I don’t see it here anymore in the download section! Can someone help me and tell me how to access this manual again?
I found a manual for the Grizzlies, which I do not see on the main thread of manuals by Oxidized Black
STREET LEGAL - ONE OF A KIND HARLEY DAVIDSON 4-WHEELER $9,500 OBO Sporster 883 bored to 1200cc built into a Street Legal Licensed and Insured 4-Wheeler. It has 400ex front end, 250r Rear end. All chromed out with new black gloss paint. I have a $500 Dakota Digital Speedometer to go with it (needs installed). I also have an extra rear gear and extra set of off-road mud tires and rims. Brakes need to be adjusted, and there's a few other touch ups that will place it into show quality. I haven't started it in a while. Ran Great last run. This bike has over $20k invested in work and time. It will go about 120 mph or more. With the other gear it will go about 60 mph. It rides great on and off road. It brings trophies and turns heads at shows. Shoot me a message or offer if interested. (May entertain trades). I will entertain any offers. This is your only chance to own a Street Legal 4 wheeler. Currently titles and registered in KY.
Got my Yamaha Grizzly buttoned up finally and went for a quick 2 hour ride in the power lines with my neighbor, who has a Yamaha Kodiak. We have access from his yard, which is nice. Was a beautiful day today to get out and will try to go more often. Ran into two other quad riders with a sportsman and I think grizzly. Also ran into a dirt bike rider. 😎
Yamaha ATV manuals are located in the downloads section here at QUADCRAZY.
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Clymer ATV Manual - Yamaha Raptor 700R
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