Backfiring? Sputtering? Rough idle? Stalling?

[@michaelthomas788]

That might be the case in your but I ride my bike every day I don't wait for it to warm up I haven't found one spark plug in the last year but I do live in Arizona where it gets extremely hot almost every day is in the 80s or 90s but when I purchased my bike I dropped three grand rebuilding the motor and replacing it with everything stage 2 including the CDI and the stator call jet kit stage 2 cam wiseco 11 1/2 to 1 piston ratio new cylinder all the transmission spacers and I have not had any problems

[@km351c6]

Good tip with the compressed air, a little Sea Foam once in a while wouldn't hurt . My 650hi won't go into 4x4 drive. I switch it to 4x4 and the dash indicates in 4x4 , but its not. Any tip on this issue ? Older machines do need more attention . 👍

[@ArcticFrost]

Thanks! Here’s a few tips for checking that your 4x4 is working, hope it helps you get it working! kzbin.info/www/bejne/ZpSUdXxnqK55nbM

[@Pootan_nani]

I have a love hate with raptor..it’s been driving me nuts!

[@ArcticFrost]

Troubleshooting can be annoying sometimes! 😂

[@michelleriddle4905]

I have a 2013 Polaris 4x4 and it’s sputtering in drive and reverse! Literally just bought it today. 😢

[@ArcticFrost]

Does it run fine in neutral?

[@Rhmcmlxii2]

I recently acquired an older 2009 650 H1 TRV from my brother n law, he loved to mud ride so as you can imagine this thing is wrecked, I had to install a new carb, and flush the case out as it was filled with trash 🙄. It runs now but seems a bit boggy when I push the throttle from idle, it was hard starting this morning, took a minute then fired right up after all day. It has tons of power wide open, I did a compression test when I first got it and it was round 100 psi, I didn’t do a leak down test. So far so good just wish I could iron out this idle bog issue.

[@ArcticFrost]

Did you replace it with an OEM carb? They don’t seem to like aftermarket as well. Other things you could check are clean the injector and check the valve clearances. What does the plug look like when it’s bogging?

[@Rhmcmlxii2]

@@ArcticFrost OE carb was more than I wanted to pay for this old atv, only issue i had with this Chinese carb is the intake horn was 60mm and the factory air box connection is 50mm give or take. So I bypassed the air box and installed a 60mm mikuni air filter, fit perfect. The idle was set too low once a turned it up it runs perfect. When I pulled the plug it looks new still, I replaced it a few months back.

[@muniramsingh5277]

Thanks for your advice, it's very helpful for me.

[@ArcticFrost]

Glad it helped! 👍🏼

[@BRENDAJASON1]

I’ve done everything to mine still idles and pops like crap

[@alicerhodes7437]

maybe airleak somewhere? or needs different jetting

[@BRENDAJASON1]

@@alicerhodes7437 I’ve changed jets things idles high and then low it runs out good just the idle prob. One day it just started doing it

[@ArcticFrost]

Couple things you can check. If you pull your spark plug you can tell if it’s running lean (no residue on plug) or if it’s running rich the plug will be black and sooty and adjust. The air filter could also effect your air mixture if you’re running an aftermarket filter or it’s dirty. Hope you can get it running good!

[@hastendmello]

Check the Secondary Air Induction System, usually backfires when the rubber diaphragm has a leak

[@BRENDAJASON1]

@@hastendmello where would that be at

[@Nash1998]

Mine was stalling the minute you gassed it then I cleaned the mud off around the spark plug and it started a little easier and stopped stalling as badly still stalls but not as bad as it was so assuming it's the spark plug gonna buy some carb cleaner and clean it just for the hell of it

[@ArcticFrost]

Probably needs a good cleaning. Might check the coil wire too. One of mine was starting to corrode on the end. kzbin.info/www/bejne/kJbLon99p96qntUsi=Goa-m2gzRrFu0BGo

[@davo8802]

I HOPE YOU SEE THIS.... 3 carbs and 3 times adjusting valves, my honda foreman 450es 4wd backfires through pipe. Only way to drive it where it runs good is to run the bottom gas jet all the way in shut when it should be around 1 3/4 turns out. What do you think it is. I put a new copper seal on exhaust at head and new muffler

[@ArcticFrost]

Backfiring is a common issues on the foreman 450 and 400. Improper valve clearance, faulty air cut off valve and the air/fuel mixtures and exhaust/intake leaks are the main causes for backfiring. Sounds like it’s getting too much gas.

[@ronz101]

Thinking a new coil will improve performance. when manually tested only sparks (visially) on occasion. I will get to the bottom of this (miss) mess.

[@ArcticFrost]

Do you have a new plug in it? To get a better connection you can trim the coil wire back a little. If the wire is damaged or corroded too bad a new one should work.

[@ronz101]

@@ArcticFrost Came out of my pocket for a new coil and it starts up right away. Thanks for the advice. Heavy usage..... heavy maintenance.

[@ArcticFrost]

@@ronz101 Great, glad you got it going again. 👍🏼

[@ronz101]

Can't get over how heavy this push mower is. The TroyBilt 860 series comes in at around sixty (60) pounds and needs the transmission assist. If the engine is having issues.... well talking about breaking out in a sweat 🥵 .... and forget grades with this beast.

[@michaelthomas788]

My plug is black it's not burning oil it's from the fuel mixture I have my bike running rich

[@viking7558]

Yamaha rhino has sat for a couple of months. Now it won't idle. I was wondering if I could use carb cleaner and I am going to try that first. Thanks!

[@ArcticFrost]

Hope it gets you going again! 👍🏼

[@davepo6443]

Would appreciate any suggestions. 2012 Polaris 800 Razor EFI hesitates at 45-50 mph. 45 is about 6350rpm. Not really a sputter or cough. Repairman just cleaned throttle body and fuel injectors and said idle air circuit was partially open causing a misfire at that speed. None of the work performed solved the issue. One person suggested the primary and secondary cluthes might be fighting each other. Need to get it fixed pretty quick so we can sell it and move, but I want it to be right. I should also mention that it has full power no issues 0-45. No codes, no engine light. Always at that speed only.Thanks, Appreciate anything.

[@ArcticFrost]

If the engine is running fine then it may be the clutch needs looked into. Make sure the clutch weights aren’t worn or sticking.

[@davepo6443]

@@ArcticFrost Summary for 2012 Razor 800: • Fuel pressure was a consistent 44PSI which is in spec. Previously verified during last repairs. • Spark Plugs were checked during previous repairs and color was a light brown (NGK BKR7E) Plugs replaced in previous repairs Jan. 2023 • TPS set at .730 per factory spec. using TPS TOOL brand meter (specified range is .720-.740 TPS voltage setting controls idle and start up. • Overall TPS voltage affects WOT, but that would be bad TPS unit. • IAC solenoid was partially open because of excessive dirt build up in throttle body. • Injectors were checked and cleaned because fuel goes bad much faster in the summer heat of the desert. • Mass Air Flow sensor was cleaned with MAF sensor cleaner because of dirt and oil build up • UNI brand Air Filter cleaned and treated and intake tract cleaned Diagnosis: • During diagnosis test drive the operators RPM’s were watched closely. • During wide open throttle pass on pavement, engine was at 6400 rpm at 45mph. • 6400rpm is on the rev limiter and that’s the surging feeling. Had to feather the throttle lightly to work towards 50mph and hit 6400 rpm again. Definitely Clutch related (clutches were not serviced in Jan of 2023, only on new belt). CLUTCH INSPECTION ON MACHINE: Secondary clutch was difficult to open for belt removal. Primary Clutch: Needed partial rebuild • Installed new OEM sliders • Rollers in the spider were good • Installed new OEM 2- way bearing • Installed new OEM 23-62 weights (removed 23-58 weights) • Installed new OEM shoulder bolts for the weights Secondary Clutch: Tear Down • Internal Rollers in excellent shape • Excessive dirt and debris in bushing area of moveable sheave resulted in hard to open during belt change, also translates to poor operating results • Replaced Belt Drive • After Clutch servicing engine holds at 6150 rpm during wide open. Wide open throttle RPM/MPH test No issue getting to 55mph, did not try for higher MPH as clutches now hold correct RPM

[@davepo6443]

The answer is above

[@abrahamcano2266]

Thank you so much for your videos! I have an arctic cat 550 and the sparkle pug is wet, how can I fix it? Thx!

[@ArcticFrost]

Wet from water or gas? Does it run okay or die out when idling? If it’s getting too much gas and flooding then you may need to check the fuel pressure. You should have constant 43psi fuel pressure from the pump.

[@sigvicious5599]

My Arctic Cat 650 H1 idles perfectly. But it dies the instant I give it gas. I've removed the carb, disassembled, cleaned in a dip tank, reassembled. Same exact issue.

[@ArcticFrost]

Is the spark plug dry or wet after you try it? Could try cleaning the carb with carb cleaner and then use compressed air to blow out the passages. Sometimes not everything gets cleaned out with just a dip tank or carb cleaner and the compressed air will clear anything trapped inside out.

[@sigvicious5599]

@@ArcticFrost the spark plug was pretty black. I replaced it. I've removed the carb again. It's soaking in the dip tank. I'll blow it out good with carb spray before reassembling.

[@sigvicious5599]

@@ArcticFrost I discovered my issue. I'd dropped the jet needle in on top of the white plastic seat. This was preventing it from accelerating. It wasn't until I watched another video of a guy rebuilding his carb that I realized my mistake. Live and learn. It's running great again. I also blew it out with carb spray after dipping it. Thanks for you reply.

[@sigvicious5599]

@@ArcticFrost My success was short lived. It ran great Tuesday, same symptoms returned Wednesday. I put a new (from Amazon) carb on this AM. Same exact symptoms. Idles perfect, won't accelerate. Jugs out and dies as soon as I give it gas. I'm stumped.

[@A-mechanics-review-4U]

@sigvicious5599 check fuel pressure fuel pump

[@nickspoor1744]

Thanks for the tips!!

[@ArcticFrost]

Glad it helped!

[@edgardomatos6923]

I use mine mainly to plow . when I go in reverse it spudders, but not forward

[@ArcticFrost]

They have a reverse limiter. If your press the reverse override it should run normal in reverse.

[@edgardomatos6923]

@ArcticFrost ahhh ok , never knew that over drive button was used for .

[@edgardomatos6923]

thank you

[@ArcticFrost]

@@edgardomatos6923 You’re welcome. I hardly use it either but when I’m plowing or in some mud. 👍🏼

[@edgardomatos6923]

@ArcticFrost thanks again ..question, you may know more . I've used 10w40 motor oil , it's recommended, should I go heavier 20/50..

[@kenbaker1353]

I have a 2004 bombardier outlander 400 cc HOXT was running bad so I put Chinese carburetter on cause could not get the old one cleaned properly thinking maybe I have to put a new kit in the old one and clean it again or just clean it opinion oh and the carburetter still rough

[@ArcticFrost]

Normally it’s best to stick with OEM carbs. Clean it out with carb cleaner and compressed air to make sure the passages are clear. Those aftermarket carburetors always seem to give issues.

[@agxspamzz3500]

Question and id love for you to respond but the other day i took my kfx 400 through mud and it had cut off on me. I replaced the carb and i only get the 1-3 gear power but revs high when i wanna go any faster. I replaced spark plug and everything .

[@ArcticFrost]

I would check all the connections and make sure everything’s cleaned out. If you replaced the carb with an aftermarket carb some machines don’t run right unless it’s OEM.

[@chacoayala8909]

My 2010 700 raptor sat for 6 years and I've drained and change all the fluids including old gas... now after running it for like 4 hrs it started misfiring and spoutering.. what can it be ?

[@ArcticFrost]

It might be that the injector needs cleaned or the fuel pressure is out of spec making the air/fuel mix off.

[@chacoayala8909]

@ArcticFrost im gonna start by cleaning the system out bro.. thank you 🙏🏾

[@ruoazquara6070]

Quick question so I replaced the carburetor on a Coleman minibike 200c & it runs fine but when I full throttle after a few mins it just turns off any ideas what I could do?

[@ArcticFrost]

Check your spark plug to see if it is wet or dry when it shuts off. If it’s black and wet it’s flooding out.

[@danbigblue7422]

Spark plug is black gas seems to be coming threw air filter an back fires like crazy

[@ArcticFrost]

Sounds like it’s flooding.

[@accWhizzy]

But sir my engine is a kind of miss firering since I got the engine sir so this is how it used to do Sir when ever I tried to Accralate the engine to the fullest the movement of the engine is always very very poor sir but I have checked everything on the engine and I found out that everything is ok sir but one thing that I'm suspecting always is the top gasket sir although it has over heated several times sir so I want to ask u sir did u think that over heating can make it to be missfirering sir??

[@danbigblue7422]

Never over heated

[@sg195286]

Bought an 400 Arctic Cat, which was standing for roughly 10years, starter motor turns strong, but it doesnt start. Had not the Chance to check whats missing, igniton or fuel. What do you think is the reason? Regards from Germany

[@ArcticFrost]

If it has been sitting for a long time the fuel system probably needs cleaned out and fresh put in. On your carb, clean it out with carb cleaner and compressed air so it blows out all the passages.

[@sg195286]

@@ArcticFrost ok, thanks, the fuel smells like hell. So this is the first thing I will do. As we do not have many Arctic Dealers or repair shops in Germany, may I ask some questions here at your channel?

[@ryanbean3548]

I bought mine with an aftermarket car and recently replaced it with another one. It’s a Pz30. I’m just curious what the stock size on your bike is? Mine, even after a full rebuild still runs like crap.

[@ArcticFrost]

I don’t remember the size on the 400 I used to have but it had a Keihin carb on it. I think a 32mm? All my ATVs now are EFI.

[@ArcticFrost]

Best tip to clean your carb is to clean it out with cleaner and compressed air to make sure all the passages are clear. ACs don’t seem to like aftermarket carbs too well from what I’ve read.

[@ryanbean3548]

@@ArcticFrost I went and found a stock carb the day. I posted this and rebuilt it, and it now runs perfectly.

[@ArcticFrost]

@@ryanbean3548 Good to hear you got it going again. 👍🏼

[@KieranMcGroary]

Hi my trx 680fa rincon honda quad, when u give it some trottle it spluttering when it's warm l cleaned tank+ cleaned fuel injection filter + replaced idle air control valve + replaced rear main relay unit beside battery, wat can l do till fix my quad

[@ArcticFrost]

Did you replace the fuel filter? Could be clogged? Or might be the fuel pump losing pressure. Might check the fuel pressure at idle and while giving it gas.

[@jamesclarke1754]

So my scooter won’t hit its full potential at max speed, and the carburetor fell off last week so I taped it up to get home and there was a big of a gap where it mounts to the engine so it was getting more air. It could go top speed and had more power, and held speed way better go up hills. Now I have the carburetor fastened again properly and I have the issue again. What the fuck is going on? I assume it is running rich and not getting enough air, but no matter how much I try to adjust the screws it doesn’t help.

[@DaSergioCuh817]

Mine instead having like a carburetor it has a throttle body. and it won't start and i try with the recoil too but it doesn't turns the Atv on , what could it be?

[@ArcticFrost]

EFI model? Check your getting spark and fuel.

[@Dirtbikesandfourwheelers]

My 700 efi pops,sputters,Boggs. Getting fuel and spark. It carbon fouls the plug almost instantly. I’ll let it idle and warm up. Still fouls. I’m at a loss

[@richardsoule278]

Hey Doctor, I have a 2004 Polaris 500 ho sportsman, not-running when trying to start I have gas dripping out the exhaust donut, smells like gas in the oil,, what gives.? replaced carb 3 times thinking stuck needle and seat...

[@ArcticFrost]

Sounds like it’s getting too much gas if it’s coming out the exhaust gasket and flooding it.

[@richardsoule278]

no way it could be a valve issue?

[@ArcticFrost]

You could check the valves. Sounds like it’s getting too much gas. Does it fire?

[@richardsoule278]

@@ArcticFrost gotta really give it the gas and it will spurrer and like choke itself out, 3 carbs, all new for the 500 ho. thought it was stuck needle and seat, but all 3 have gas running out the exhaust donut. Going to take the valve cover off and see if the valves are moving, any ideas? The cam looks good, and rockers.

[@ArcticFrost]

Double check your valves if they are off kzbin.info/www/bejne/Zpe5kJSmnal7p68

[@florinandrie8202]

I have an 850 polaris sportman. It is running very rough and has no power! Changed the spark plus and bought a new fuel pump, and did a compression test on the injector, but it is still running rough, any ideas?

[@ArcticFrost]

May need to check the valves. Sounds like they may be off.

[@florinandrie8202]

@@ArcticFrost would the timing chain be off it only gas 130 hours and about 2200km on the quad

[@ArcticFrost]

I wouldn’t think the timing chain would be off with that few of hours. May need the valves adjusted though. I check mine about once a year.

[@leakybandz1208]

Mine just needs a little gas for the beginning when it starts but it just wont pass smog :,)

[@ArcticFrost]

Fuel pressure?

[@tracyscott3659]

I have a Kawasaki Lakota it idle fine but when you give it gas, it dies, please help you have any suggestions?

[@ArcticFrost]

Check your spark plug to see if it’s getting too much fuel (wet plug) or not enough. You may need to clean the carb with carb cleaner and also use compressed air to blow out the passages.

[@juliusmckinney3367]

My pops really loud when trying to start ? Any solution?

[@ArcticFrost]

Could be your air to fuel mixture is off.

[@murphsosaaa6534]

I have a Honda foreman 500 es,, it starts and runs but it's stuck in 1st and wen I try to give it gas it backfires and stalls. Any suggestions?

[@ArcticFrost]

Sounds like the carb could be dirty cutting it out. Try cleaning it out with carb cleaner and compressed air to make sure it’s clean.

[@murphsosaaa6534]

@@ArcticFrost Thanks!, hopefully that works

[@pixzzas10011]

I got gy6 pronto and I have to pull on the throttle and hold the starter take long time to idle? Will this technic cause the engine to flood?

[@ArcticFrost]

Holding the throttle open to start will flood the engine if you do it long enough.

[@fidencioortega3372]

Mine wants to bog down when im trying to accelerate and also sometimes it turns off when i put it in high or reverse and i cant out the speaker in full volume because itll sound bad but its not the speaker i already checked do you think it might be the ignition coil?

[@ArcticFrost]

You could check the ignition coil but it sounds like there’s bad connection or the idle is off.

[@theresahafful-tz3el]

my bike keeps misfiring ... i need help i am running a 750 engine on a 600 body and ecu any help bke sparks but back fires do i need to put the 600 pulse generator into the 750 ?

[@ArcticFrost]

What model are you working on?

[@theresahafful-tz3el]

@@ArcticFrost 2011 model

[@blaster42008]

Get a better fuel! Try starter spray in the intake and if it runs cleaner, drain your tank and get better fuel or put in some additives

[@ArcticFrost]

Clean fuel is important!

[@michaelthomas788]

Then I went from 75 mph top speed 290 mph to where I can keep up with a 450 TRX within two bike and I am running standard size not a 406 or 416 or 426 it's still 400 cc

[@andrewmasaberg1116]

Wtf did I just read

[@sc300man]

@@andrewmasaberg1116 delusional ranting

[@Erick-ry1ij]

Was hoping this was my issue, pulled it off and nope 😂🥱🤦‍♂️

[@ArcticFrost]

😂 Oh no...

[@lucasglossop3691]

Hi, i have a Yamaha raptor 350 and it backfires and dies often when I’ve been using it for half an hour more or less. Any suggestions? Thanks

[@ArcticFrost]

Sounds like something is off with the air/fuel mixture. Could be the fuel pump not giving enough pressure or the carb is not adjusted properly or has some sort in it. It might run okay when it’s cold but when it gets warm it will cause it to act up.

[@lucasglossop3691]

@ I sent the carburetor away to be cleaned, as whenever I would try to start it with the choke it was a pain in the you know what. Perhaps since then could something not be right?