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By Chris Stokes
What is a good option for a 13 year old that is dying to get her very own atv to ride? Thanks in advance for your recommendations. I currently own a Polaris Sportsman 570 and have been happy with the Polaris sportsman line but have ruled out other brands.
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
replacing carb,, the bigger line on right side top of carb does it just vent to the air,, cant find where to hook it up to also I want to check the oil and gear oil I checked the oil in motor and the rear end my question is looks like allen plug on left side of motor if you are setting on the 4 wheller, ps it hs a oli leak any help would be great. Ray in kentucky
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This is my first post and I was wondering if there is anyone who can help me solve a problem I have with my Yamaha Kodiak 400 4x4 Fitted with a Mikuni Carburetor . The year of the quad is around 1998, the reason I am not sure of the date is, there wasn't any paperwork and no details on the frame either.
The quad had a bad leak from the carb overflow which indicated that the float needle valve was blocked or passing so I replaced this and put everything back together. The quad ran really well until I took it onto some rough ground to have a ride around, a few hours later the engine started to run really rough as if the engine was flooding. I have removed the carb again and cleaned the needle valve out and the whole of the carb just in case there where any dirt behind it. Engine now runs fine again but fuel has started to run out the carb overflow again.
I have tried everything to try and stop the fuel leaking out the overflow but its still happening. My last thoughts where to adjust the float level and its still happening.
Has anyone got any thoughts on the problem or could suggest whats causing the fuel leaking out the overflow.
Thanks for reading
Hello, well back to where I was last year with this carb. Took my 250 to the mountains for the first time this year and blue smoke, too much gas again. I can't believe that this carb gives me this much trouble. Seems like the choke is stuck but the cable moves freely. Anyone else ever experience this issue? Do you think a new choke cable would maybe resolve this?http://www.quadcrazy.com/atvforum/images/smilies/arghh.gif
OK it was the choke. Put on all new cable and plunger and she is running 100% again. So now the question is, is the carb getting worn out where the plunger needle goes in the small hole and when I use the choke the needle end doesn't get lined back up with the hole?? We'll see how it runs and now that I know what the issue is I can always pull the choke plunger out and reinstall if I start having this issue again.
i was wondering if i could get some help. i been trying to locate where the fuel and air adjustment screws are located on my 95 kodiak 400. i think i found the fuel screw.. i know where the throttle adjuster is but i cant find the air screw. or is there an air adjustment on these carbs?
I have a 94 sportsman 400. It sat for several years before i got it. I have cleaned the carb it will start and run for about 5 min then it will flood. I have torn it down and cant see anything wrong. has anyone else ran into this problem any hel would be great.
Hey I own stock why Yfz 450 and I'm just looking to slap a turbocharger on it.. I was just wondering if they're pretty compatible with these machines it is the carburetored version Yfz 450. I have all the piping hook ups / kit that's threw HURON SPEED an i also have turbo lined up for it gt 12.. I was just wondering what else I need to make this work? I know i would need to up the Jets and stuff for starter but Is it just that simple or do I need blow off valves and like some time on regulator on it or so forth? Trying get ideal what i would need
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