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Hi guys im new to the forum and i hope i put this in the right spot. But im putting this up for my uncle. But he has a 2002 Bombardier quest rotax 650 4x4 All wheel drive. Now i was driving it down the road today and all sudden it shut down i thought it ran out of gas but it didnt. After it shut downi pushed it to the side of the road and tried to crank it over but it wont crank over. It is a electric start none of the lights or anything work So what i was thinking its in the wiring somewhere right? Does any one have a website that has a wiring diagram for this 4 wheeler or does any one know what else it can be? If anyone has any idea please let me know everything willprobley help thanks guys!!!
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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Ok...I'm gettin' me juevos ready to do an oir filter clean....
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What I've read is that the No-Toil cleaner will NOT clean
other oils off air filters....just the No-Toil oil....
So, I've also read that others have cleaned their air filters
in the kitchen sink, used gasoline, or used flash solvent....
Looking for advice as I've mentioned I'm very mechanically
I'm going to wash the air box seal in the sink and give it a good dry....
One more thing......No-Toil or Bel-Ray for filter oil?
I own a 2002 Can-Am Quest 650.
It will start if you massage the throttle a bit and it will continue to run. BUT if you let go of the throttle and try to let it idle it will always die warm or cold.
It has Non-Oxy premium gas, a new gapped NGK plug, a new carb (as of today) and fresh fluids. After installing the new carb it runs exactly the same.
I only have a few things that I have observed since the new carb:
The choke still doesn't do anything. It has a good cable and it is hooked up. It on fully off. There is a cable in the top, front of the engine that splits into two connectors. The connected side is in the photo. The other side has the yellow banded section and is not connected. I do not see anything in range of this connector so I don't know if this is normal or not??? The original carb wasn't really dirty or clogged. I'll use it as a spare. I don't see this cable and connectors listed in the Can-Am shop manual. Looking for some help. I want to ride!
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