Three Keys to Keep Your Winch Running Properly
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By Bobbywolf
I am working on a basket case for a friend. It is a 98 Big Bear (YFM350FWB). It came with a parts machine which is a 96, which I am coming to find out is VERY different from his machine.
Anyway, first thing is first. I checked compression, 150psi. Valves are set correctly, and the engine is in time. I cleaned the carb, and there was some junk in the passages. It is a chinese carb, which I figured from the lack of markings or lettering altogether.
The bike runs. It idles ok, but breaks up badly under acceleration. Pulling a new spark plug shows it is running lean. White strap, with no black whatsoever. So I have the carb adjusted with the mixture screw out way too much (about 5 turns), and the diaphragm needle lifted to the top slot. It is still not getting enough fuel (or too much air). It backfires through the carb, and cannot get above idle without carrying on. The carb boot is in good shape, so it isn't pulling any air there. I did test this as well by spraying ether around the boot when running, looking for intake leaks.
Anything big I am missing here? I am starting to believe that this chinese carb is the issue. This quad came with the original carb, which I would like to rebuild and use, but the mixture screw is totally stuck, and stripped way down in its recess.
Thanks for any assistance.
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By p5200
I'm assuming, it's alright to test the engine after adjusting valves without the rear axle installed? Can someone please verify this? I'm waiting on axle parts and wanting to get that done while waiting. Thanks! 🙂
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By Mhatayas
So here where I live in Newfoundland Canada, they let you drive your bike on the road provided it’s registered and insured same goes for crossing highways but on trails you don’t need to be insured. And I don’t even think you need a full license to insure your bike they said it was up to the insurance company. I’m trying to get my old 1985 Suzuki 250 registered they have to do a search for it to make sure it hasn’t been in anyone else’s name first. Hopefully it comes back clean I am pretty excited
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By fishhouse3
FOR SALE: 2021 CFMOTO ZForce 800 Trail with many extras and full warranty until 2027. Only 625 miles and 50 hours of use.
In great condition, has a clean title and one adult owner. Has had all scheduled regular maintenance and has not been abused. Only used about six times on weekend trips to Hatfield-McCoy trails in WV.
Under full CFMOTO Care bumper-to-bumper extended warranty until 8/2027 (paid $1,600). Full service and tune up just completed with new clutch, drive shaft, belt, rollers, etc (paid $1500). Plus it comes with over $3,500 in upgrades and accessories! Way too many included items to list here (see last pics for full details).
This machine is ready to go and needs nothing - just hop in and hit the trails! I have over $20k invested in this machine. Priced VERY fair to sell quick at less than half that!!!
$9,999 WITHOUT warranty -OR- $10,999 WITH full extended warranty until 8/2027.
Located in Chesterfield, VA 23832. Message me for more pics and info!
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By p5200
I've been using Valvolene 10w 40 ATV oil but, it's like $8.00 a quart. Is that about the going rate? Or is there cheaper alternatives that would be suitable? Thanks
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