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Working on my oldest son's buddy's 2000 Big Bear. He was having some power loss at WOT so i thought it worth while to clean the carb and put at kit in it...or at least clean the OEM jets and use the new orings that come in the kit. It starts and idles like a champ, but dies and wants to backfire with any throttle at all. I assume lean because it will run decent with the choke on. Air screw adjusted fine, nice crisp idle. This one has fuel/air screw, low speed jet, mid jet, and main jet. I was assuming just trash in the low speed circuit so pulled it and cleaned again, still does the same.
Two questions I guess:
1. Does it sound most likely trash in the off idle circuit? This one has a few more passages and jets than I'm used to...and a darn diaphragm.
2. It now really wants to leak at the bowl drain screw. It doesn't seem to tighten enough to completely stop the flow. Seat looks good, screw was dirty but cleaned up fine with a touch of 2000 grit paper. First for me. Any idea here?
By Ed Zeppeli
So I fired up the quad the other day and let it idle for about 5-10 minutes and it ran great then died.
I go to check it. No lights on dash, nothing.
Check the main fuse and it's blown. Key's off/out. Put in another and it blows immediately.
Pull out the meter and see that on the non-load side of the fuse holder there's continuity to ground.
Check all obvious things. Wiring diagram. Connectors. Frayed wires. Bad grounds.
Battery measures ok at 12.8v.
I'm dreading taking off the front plastics but I suspect the regulator/rectifier. The wiring diagram shows the red wire (the suspect wire) goes to the ignition switch and the regulator/rectifier.
Anyone else experience something similar and/or have any troubleshooting tips that may save me the grief of removing the plastics?
By Flipper Tiffany Roper Jones
All I have been through everything. Bought brand new.
Throttle safety switch
Cam and rockers
Fuel safety switch
Everything every forum has spoken of I've bought sealed airbox completely tight unplugged black wire on trans. I have literally done everything in the book.Checked oil today full of gas anyone no anything what might b wrong. Next I'm taking head off and making sure valves seat any ideas.
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If we had a dollar for every time the question “Which is really faster, the 700 or the 450?” shows up in our inbox, mailbox, or voicemail, we’d be putting this magazine together from a bungalow on a barely inhabited tropical isle named Quadhama.
Life got the best of me this year and to make a long story short my '11 Grizz 700 has a half tank of gas (w/ no stabilizer) and hasn't been started for around 9 or 10 months. I have apologized to it and promised this will never happen again, but in the meantime I'm faced with what to do to remedy the problem. Ideally I suppose I should get the tank off and drain the gas, replacing with non-EtOH gas (which thankfully I just found in my area).
Any advice on how to get this done (draining the tank) or how difficult it might be?
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