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Hello guys! New to the forum, and fairly new to ATVs. I've driven them, but never owned one. Now I do own one. Just picked it up today. It's a 1999 Yamaha Big Bear 350. It's been through some stuff. The guy I got it from told me the previous owner removed the front diff because he didn't want to replace the half shaft. So it's 2wd, even though it's supposed to be 4x4. Lovely. I can deal with that for now.
More importantly, I need to get it running. The carb needs to be rebuilt. The guy I got it from said he sprayed it all out and it still didn't work. I'm concerned he might have damaged it or not put all the parts back. I was looking at a replacement carb, and the OEM parts is $600. I'd rather not spend $600 if there are any other options. I have seen carbs on Amazon and eBay that are in the $40 - $100 range that say they fit. Anyone have experience with these? I'm going to get a rebuild kit for the current carb just to make sure that won't fix it.
Thats the first thing with it. Secondly, it was completely rewired. I need to find a original wiring diagram so I can put it back how it was, with a key and all. Currently it's wired with just a rocker switch. Any sources for a service manual that would include wiring diagrams?
Thirdly, is the Big Bear 350 a good atv? I picked it up for $700. It does start and run when you spray starting fluid into the air intake, so I am not concerned about the engine being bad. I plan to use it for the farm, running around and carrying things with it like minerals and feed and such. Not really for mudding and things like that. How good is the 99 350?
I am certain I will have more questions as I examine it more, but that's all for now. Thanks in advance for the assistance!
I've been riding Suzuki Kingquad 300's for the last 20 years. I have 3 of them. I love the low gearing, low center of gravity, low rider position, low racks shaft drive and smooth ride, but they are getting old and I'm tired of fixing them. Best engineering of any utility quad, IMO, but the execution...build quality is not up to par with Honda, so the price you pay is lots of wrenching.
I positively despise CVT type belt drives. My neighbor has a couple of old Hondas, Rancher and Rubicon and I admire the reliability of them. He does very little maintenance and they always run and have pulled my Kingquads home for me when they break.
Is Honda the only company that makes ATV's that don't have CVT? I like the build quality but I don't like the high rider position caused by the vertical cylinder, the cold nature of them, having to warm up for several minutes and the plastic skid plates. I guess all modern ATV's have the same issues, though (correct me if I'm wrong).
Been checking with the dealers, it seems Honda foot shift models are scarce. I really don't need devices/gadgets to decide which gear I need to be in. So I'm avoiding the DCT models. I must have IRS and EPS because of my age and physical condition though.
Is it possible to get a Rancher with IRS, EPS and foot shift? The specs I'm reading show the rancher is 2" lower than the Rubicon. I'm assuming that to be seat height. With vertical cylinder design, the more you grow the engine, the higher you push the seat....at least that's my thinking.
Any comments from the Honda experienced?
The points battle leading into round five of the 2020 ATV Motocross National Championship Series, an AMA National Championship, was already close with the current champion, Phoenix Racing Honda/Maxxis/Elka’s Joel Hetrick, holding the edge of a sword that has been known to cut both ways this year. This round of racing was held in conjunction with the Jeremiah Jones ATV Championship at Pleasure Valley Raceway in Seward, Pennsylvania run by Jeff Cernic.
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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
By Denis Lanthier
I have a 2004 Yamaha Kodiak, which has taken me to many remote places and hauled lots of game. I still love it after 16 years.
Lately when I go to start it using the starter, sometimes it clicks and kills the power in the display. Lights don't work, nothing works and I end up having to unplug the battery, wait awhile, and replugging the battery ends up giving the power back. Using the winch will sometimes kill the power as well.
Battery is new, all fuses are ok, I'm at a loss. I can start it with the pull crank and it will work and so will the lights.
Any insights or advice would be appreciated!
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