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By Tom Pavlak
Hi Everyone - Need some help.
Got a nice little 220...clean machine. wiring is a mess. I have a diagram however, the one I have has 4 wires coming from the ignition switch not 2 like mine. So, I cant trace wires properly.
There is a white one that runs to the Solenoid, and a brown wire...from the Ignition...I dont know where its supposed to go. Also, on the Solenoid, there are 3 wires..W to ignition, B to start relay and B/Y runs up to the front of the machine...and is not plugged into anything...and there isnt a "Mate" missing it. How do they plug into the 4 open shovels by the 20A fuse?
I'm pretty sure my Lights and start switch/Lights are correct.
Problem I cant get anything...new battery...cant get the start button to work, cant get any power to the lights or switches...so I know something is not grounded or..
Any advice would be greatly appreciated.
By John Victor
My father-in-law gave my boy a 1999 350 Big Bear. It's been sitting in a barn for a bunch of years. It runs great! My boy has been riding a couple weeks now and it has developed a squeal coming from the front end when you get off the gas at speed. No noise during acceleration. At first I thought brakes. I took it for a ride and I don't think it is the brakes. I feel it is the front prop shaft U-joints, front differential or one/both axles. I pulled the fill plug on the differential and I can't find anywhere how much gear oil should be in there. My gut says up to the fill opening. It doesn't have a manual. It's wet in there, just don't see any gear oil.
#1 Should I fill the differential with gear oil up to the fill opening?
#2 How do I check or know if the u-joints are bad? That looks like a "Big Bear" of a job if they don't need to be replaced.
#3 What else could it be? I don't think it is the front bearings. I jacked the front wheels off ground and no play in the right wheel. Very little play in the left wheel, looks like the lower control bushing is where that play is coming from. The rubber CV boots look original but all still intact. Wheels spin easily without any noise.
Thanks for any help!
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
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Just signed up, as I've had a recurring problem, and need some help.
To start the bike I have to put the choke on all the way and 4 squeezes on the gas, Then as I push the start, I slow squeeze the throttle about half way for it to catch....If I miss it, then it will take 5 mins of slowly finding the sweetspot on the choke in unison with some throttle squeezes.
Then I have to to hold the throttle to keep the bike going, using the choke will stall it out. after about 3 mins of holding the throttle, I then can let it go, and it idles fine, and runs fine. If it sits for a few hours it's only slightly hard to start, but a few days of sitting, and it's a lot more work.
Had the bike serviced they couldn't figure it out. They swapped peticock, plug, new gas, all new lines, new throttle, and cable. Said the carb was fine, and clean. New air filter, said fuel pump was fine, no leaks around carb boots, new battery, new rectifier.
Ran some sea foam through it....Runs Great.....Just such a pain to start...
Good morning all I am new to the forum and new to the world of ATVs. I recently purchased a 99 big bear 350 4x4 that has a few issues to be resolved. it started with the push button starter it would just click when the button was pushed to date I have replaced the solenoid with a Napa 4 wire setup (not sure if this is installed correctly) and replaced the older baterry with a AGM battery. after all of that it still clicks but the source of the click is a white plastic rectangular box with 2 wires going into it. i have 12.8 volts to the first post of the solenoid and nothing on the second post when the button is pushed. when the solenoid is jumped the starter engages. lastly i have no lights when the buggy is not running and when i hit the light switch there is also a click that happens. Thanks for any info anyone can provide I greatly appreciate the help.
Ok so I have taken the front hubs apart everything is good and working fluids changed and full In 2 wheel drive the bike works great However in 4 wheel drive high I get a grinding clunking noise right near the foot pegs The universals are all brand new in the complete bike The problem just started after my last ride Sometimes I have to change the rpm to get the bike to go into gear in forward and reverse The bike doesn't make the grinding noise when I have the bike in 4 wheel driver low gear only in high gear Could the shifter need adjusting any help would be great Thanks for your time
Just bought this quad and it is in pretty good shape.
It is missing a small plastic piece right above the headlamp cover right in front of handle bars. Does anybody know where I can find this piece?
Now the CV axle. The left inner CV boot is ripped and wheel hesitates when making a sharp turn in that direction. I am trying to find a replacement or a fix, but have been recieving different suggestions for the fix.
First one was buy a replacement CV axle. Second said to that the inner was it's own build and that if you ought a CV axle it would only e a half shaft. Just confused and need some guidence.
Thank you guys!
Title says it all. When I researched part it shows it does not exist anymore, discontinued. What can I do to stop the leak? Is there somewhere else I should be looking for part? The leak is coming from where shifter goes through seal, not around outside of seal between case and seal.
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