Motorcycle ATV Engine Exhaust Popping or Backfiring - Rich or Lean?

Thanks you helped me out a lot!!!

Bought a second hand Chinese quad for $500aud, got it from a diesel mechanic, he told me it had some sort of ignition problem and he started it by bridging the
positive and negative, kinda a hot wire job, he told me he had no idea why or how, I got a new starter relay, and fixed. He also put a new pz30 on it and told me he could not get it to run right, used this video and moved the small clip down 1 notch, and runs like new now! So much for the sellers mechanical skills!

omg TY to the point

how do you know if you engine need more fuel or less few then ? more fuel mean more speed

I'm impressed. You are good at teaching and riding.

What about when I'm going up an incline and it starts doing that but when I'm on level ground it doesn't??

Thank you that was well explained

I have the same issue on my motorcycle. Except it was working fine until I had to fix a leak in the bowl and now it sounds like in the beginning of the video. I've cleaned it all of the jets and it seems like adjusting the idle mixture screws barely changes anything. Could it be some internal circuit that's clogged? Except it was running fine before so I'm not sure what it could be...

Dude… thank you for such an awesome video. Super precise in your description 😊

Very helpful thanks 👍🏻

Let’s say I don’t do anything about it can this ruin my bike?

The VERY BEST video !!!
THANK YOU.
10/10.

Another problem with the needle clip people sometimes miss is putting it on bent so its only half on ..so easy to overlook an have an issue

What’s with revving your engine to warn other drivers? Your bike has a horn that would do a much job

My pit bike keeps studdering and sometimes pops at 1/2 throttle. Not that i run full throttle all the time but its still annoying. I already cleaned the carb. Threw in a new spark plug due to it being in bad shape and hasnt changed. Im gonna clean the carb again and try again

I have a gy6 scooter and i have changed carb coil cdi spark plug air filter vacuum hoses and problem persists engine sometimes stalls exhaust poping this only happens when hot. When engine is cold it runs fine. Only thing i havent changed is the o ring on the intake manifold which is very flat hope that when i change it it will resolve the problem

Hi. I have a 300 king quad. I have a 140 MJ and it runs great but it should be a 120. Should I change it back? Also, I'd like it to start easier. It always starts, but sometimes I have to crank and crank. Any hints on where to look first? Pilot or fuel screw?

Mine was bogging at full throttle I bought 3 different carbs … whole time it was the wire beside the front sprocket beside the oil drain plug had came disconnected 🫨 … mikuni carbs for sell hmu !! 😂

I love it that information thanks men

9 times out of 10 it’s worn rings and lack of compression at high rpm , just like all the crapped out cars on the road.

God this is gold

What is that problem my atv same like sound popping also I cleaned carburetor still nothing but I m confused that my atv not running its shut off when choke on only when choke off its running what will be problem

Nice one

I have a crappy bike and I’ve been spending days and dollars to get t it to run right and thanks to you this will be the last video I watch for today

👍

I have a 125cc 4 stroke yamaha xtz125 and its carburetor doesn't have the air mixture screw. My bike has the same prob with your quad. What should i do instead? Have checked the jet and the carb part

Thought you riding

Good job

Awesome good job

Here’s the problem I have a 2002 Bombardier Ds90 2 stroke it doesn’t have a choke

Fantastic.

Great video. Will float adjustment affect lean or rich?

Fantastic video, right to the point and easy to follow!

My dirt bike pops when releasing on the throttle.

Great carb video thanks. Line-riding is a great way to become an organ donor. Be safe!

Definitely helped

Exactly what I was looking for! Thanks!

Could improper jetting be causing my Honda 400 ATV To be vibrating bad at high RPMs? I installed a new full exhaust, and jetted per the exhaust manufacturers spec sheet, but I left the needle and f/a screw in factory position …. Please help, I hardly notice any power gains from the quality full exhaust I purchased and the vibrating makes riding so unenjoyable… I have another 400 same year with a full exhaust that I purchased as is, and it doesn’t vibrate at all

My 08 artic cat 650 h1 pops when I kill the engine, just a single pop out the pipe. I installed a brand new carb recently and it runs perfect just that pop.

Thats the spirit, thank you .

THIS IS GOLD! Will move my needle tomorrow a 2 positions lower, because it backfires. I already cleaned carbs. Thank you!

What about a choke that adds fuel instead of restricting air?

Perfect! Thanks

Spent a whileeee looking for an answer and poof this video popped up so great-full!

Mine pops and bangs when its running i have to give tiny throttle to get it started but when i give it revs it bogs out thought was carb so have brought 2 now with the same result

Brief and sweet video bud thanks

LEAN SOUND.

Good info on the carbs but you're a jackass on the road! Splitting lanes at high speed and blaming other drivers for not seeing you doesn't make much sense now does it?

93 Yamaha moto -4 350 new carb didn't do nothing but adjust the throttle adjustment an mixing screw mid way out 😅 but timing off about 1/4 I only know the basic put in put off year laster it starts popping on choke