Had exactly the same issue with my son’s old Honda Today (NVS 50cc) - probably not helped that the fuel that had sat for 8 months. Carb looked approx same as that one. Taking the carby off isn’t hard, the key is remembering what hose came from where so can refit correctly. Unscrew each hose clamp, unscrew the clamps to the back (from air box) and front (to engine inflow manifold) and most of the way there. I took the carby bowl off (looked clean and functional), screwed in new jets (both), gave the carby a thorough blast with carby clean (didn’t look clogged so I skipped giving it a ultrasonic bath), then (after draining the tank, new fuel), refitted the carby. Initially it wouldn’t run right but I could feel an air (vacuum) leak so changed one of the hoses. I was still getting a bit of bogging but that fixed itself when I put the air cleaner / cover back on… carb was getting too much air without those back in place?) After that, starts instantly every time, pulls through the rev range, no bogging… Total cost (2 jets from Honda dealer, 10% of a can of carby cleaner, $1 of vacuum line) was about A$20 (australian) For a non-mechanic, and my first time taking off a carb, I was quite pleased with myself😀
Awesome. I'm glad you got it sorted out. It's a great feeling when can do the job without help. I wish I had a scooter when I first started driving. In my opinion it's the best thing for a beginner to learn on. Basic troubleshooting and maintenance are easy to learn and the cost of keeping them going is fairly cheap. The first carbs I rebuilt were a Rochester single barrel and a quadrajet. It would have been nice to start with something like a little scooter carb to get a basic idea. When I rebuilt the carb on this particular bike when I first got it, it looked like the inside of a fishtank after a year of not being cleaned. It sat for 5 years though before I picked it up. Thanks for watching! CHEERS
I was out riding with Tetanus Auto the other day and we ran the rocket 🚀 low on fuel it shut off and gave us a hell of a time running good since now its a hit and miss on the how welĺ it runs but it does run just not like it did before and we switched carburetor on it to no avail
Thats pretty much what happened to this one. I ran it out of gas and I think all the crap in the tank went straight to the carb. Have you changed the fuel filter? Another thing to check is the fuel "pump". If you pull the fuel hose off the carb and crank it fuel should come out. If the fuel just pours out non stop without cranking it you need a fuel pump. Have you changed the plug yet and does the spark plug wire have a good connection?
Hey thanks for watching. I don't worry about the ethanol. The regular gas that doesn't contain ethanol is better though I've never had any carburetor problems with a bike that is run regularly. Parking it for the winter might be a problem. For storage you want ethanol free gas. Don't store it with a full tank. Run the bike once a week for 10-20 minutes. My bike sat for 5 years and the carb was nasty. I really need to just buy a new one. The carbs are disposable on these gy6 engines.
Had exactly the same issue with my son’s old Honda Today (NVS 50cc) - probably not helped that the fuel that had sat for 8 months. Carb looked approx same as that one.
Taking the carby off isn’t hard, the key is remembering what hose came from where so can refit correctly. Unscrew each hose clamp, unscrew the clamps to the back (from air box) and front (to engine inflow manifold) and most of the way there. I took the carby bowl off (looked clean and functional), screwed in new jets (both), gave the carby a thorough blast with carby clean (didn’t look clogged so I skipped giving it a ultrasonic bath), then (after draining the tank, new fuel), refitted the carby.
Initially it wouldn’t run right but I could feel an air (vacuum) leak so changed one of the hoses. I was still getting a bit of bogging but that fixed itself when I put the air cleaner / cover back on… carb was getting too much air without those back in place?)
After that, starts instantly every time, pulls through the rev range, no bogging…
Total cost (2 jets from Honda dealer, 10% of a can of carby cleaner, $1 of vacuum line) was about A$20 (australian)
For a non-mechanic, and my first time taking off a carb, I was quite pleased with myself😀
Awesome. I'm glad you got it sorted out. It's a great feeling when can do the job without help. I wish I had a scooter when I first started driving. In my opinion it's the best thing for a beginner to learn on. Basic troubleshooting and maintenance are easy to learn and the cost of keeping them going is fairly cheap. The first carbs I rebuilt were a Rochester single barrel and a quadrajet. It would have been nice to start with something like a little scooter carb to get a basic idea. When I rebuilt the carb on this particular bike when I first got it, it looked like the inside of a fishtank after a year of not being cleaned. It sat for 5 years though before I picked it up. Thanks for watching! CHEERS
I was out riding with Tetanus Auto the other day and we ran the rocket 🚀 low on fuel it shut off and gave us a hell of a time running good since now its a hit and miss on the how welĺ it runs but it does run just not like it did before and we switched carburetor on it to no avail
Thats pretty much what happened to this one. I ran it out of gas and I think all the crap in the tank went straight to the carb. Have you changed the fuel filter? Another thing to check is the fuel "pump". If you pull the fuel hose off the carb and crank it fuel should come out. If the fuel just pours out non stop without cranking it you need a fuel pump. Have you changed the plug yet and does the spark plug wire have a good connection?
Thanks for the video. Do you use ethanol free fuel or regular? I have not had any carb issues yet, but I'm sure it will happen at some point 🤔
Hey thanks for watching. I don't worry about the ethanol. The regular gas that doesn't contain ethanol is better though I've never had any carburetor problems with a bike that is run regularly. Parking it for the winter might be a problem. For storage you want ethanol free gas. Don't store it with a full tank. Run the bike once a week for 10-20 minutes. My bike sat for 5 years and the carb was nasty. I really need to just buy a new one. The carbs are disposable on these gy6 engines.
Hey I was riding my scooter and it just turned off on me. Do you think this may be the problem?
Probably not. Usually, a clogged pilot jet is from sitting too long not running.