really good video did you ever narrow it down to the cause of why it was so difficult to start and stay running my son's bike does pretty much same thing it's a little moto bike with the same motor as you got but I can get it to start and he can ride it for like 30 seconds and it bogs down and eventually quits and then won't start back for a little bit. Any advice would be appreciated thanks
Sounds like carb problem check the bottom where float is and the jet in there. I had a similar problem and found dirt in there cleaned it out now runs awesome
Excelent educational shooting. Did you find out what was the main reason for the bad starting? I am rebuilding the same kind engine, which has been stopped for several years.
Try the fule valve mod he did on the carburetor. If it has the 4 way rubber gasket on the inside it is just a very bad design and creates a vacuum lock where fule can not flow .
I can confirm about the fuel line valve. My kid had a similar problem. The bike would run for about a minute and then stop (right before stopping, it would rev by itself for a second). I found that the screws holding the front plate of the valve were too tight and fuel flow was bad. The bike would empty the carburetor faster than the fuel could come in, and that is why it was reving before it shut down - there was more air than fuel in the carb. Unscrewed the bolts for 1/4 turn and the bike worked normally ever since. I turned the valve off and cleaned the carb for the winter and when turned the valve on again yesterday. It started leaking fuel as hell. It stopped once the rubber got greased by 2 stroke oil. This valve is a nightmare. I think I will also do the same mod like Tino... Also, guys, what mix ratio do you use on those bikes? By the book it should be 4%, but there is so much smoke and oil residue in the exhaust that the bike will stall in a minute or so if left idling. What oil and what mix ratio do you guys use?
@@Rakija_ShliwowitzHELLO yes, that is very true but i never got it down to that conclusion, i just ordered a brand new carb off Amazon and i’ll do the fuel tap mod. do you know what size drill bit i will need?
I did the mod a few days ago. I think i used a 3 or 3.5mm bit, but am not sure. I checked which bit goes through the outlet and did not check the size. One more sugestion, drill from the bottom (carburetor side). The bottom opening seems a bit smaller and if you open it too much, the gasket will not fit. The hole can be smaller without it obstructing the flow. Basically, when you dissasemble the valve, the bit must be at least the size of the holes in the rubber. Hope this helps.
You tuned that bike wonderfully. Throttle response was nice!
Muito boa essa modificação na parte do acelerado um gênio
In one word : Cool.
Genial. Tanks for yu experience saludos desde Mexico
I watched lots of the videos about 2 strok minibike, the sound of yours is best！！！
Very helpful video, thank you!
Fajny patent z tym wbijaniem simeringów zaworem!
Like the fuel tap mod Good work
Big Christmas Cookbook 👍❤😁
Good one
Very nice video. Thanks
ciao, where did you get the spare parts? thanks Simone
heii jawa, i like your video .. are you from indonesia?
I come from Czechoslovakia.
@@jawatino3797 theres a lot of really good looking women from that neck o the woods
real nice man
5555555
Good job.
really good video did you ever narrow it down to the cause of why it was so difficult to start and stay running my son's bike does pretty much same thing it's a little moto bike with the same motor as you got but I can get it to start and he can ride it for like 30 seconds and it bogs down and eventually quits and then won't start back for a little bit. Any advice would be appreciated thanks
Sounds like carb problem check the bottom where float is and the jet in there. I had a similar problem and found dirt in there cleaned it out now runs awesome
2:50 i wanted to remove the clutch but it was to tight and i used to mutch forse so there broke a carter piece
What size chain
34:46 12 year old susuki riders at the gate
Excelent educational shooting. Did you find out what was the main reason for the bad starting? I am rebuilding the same kind engine, which has been stopped for several years.
Глушитель на него кто-нибудь ставил? Штатный сильно громкий... Или будут сильно душить?
takze jste z cr :D
What code size for oil seal?
Amigo que hago cuando una moto de estás no me quiere prender manual
💖💖💖🏍🏍🏍🏍🏍👍🔔
Náhodou tenhle motor ale popisky v češtině by nebyly? Nemám jak to překládat
Mean my bro
I put new engine on still won't start new carburetor new spark plugs still won't start x pro 50cc dirt bike hawk
Did you check for spark? Is coil pack line up correctly
@@MoBLuBSiAb4LiFe yes everything new
Try the fule valve mod he did on the carburetor. If it has the 4 way rubber gasket on the inside it is just a very bad design and creates a vacuum lock where fule can not flow .
I can confirm about the fuel line valve. My kid had a similar problem. The bike would run for about a minute and then stop (right before stopping, it would rev by itself for a second). I found that the screws holding the front plate of the valve were too tight and fuel flow was bad. The bike would empty the carburetor faster than the fuel could come in, and that is why it was reving before it shut down - there was more air than fuel in the carb. Unscrewed the bolts for 1/4 turn and the bike worked normally ever since.
I turned the valve off and cleaned the carb for the winter and when turned the valve on again yesterday. It started leaking fuel as hell. It stopped once the rubber got greased by 2 stroke oil. This valve is a nightmare. I think I will also do the same mod like Tino...
Also, guys, what mix ratio do you use on those bikes? By the book it should be 4%, but there is so much smoke and oil residue in the exhaust that the bike will stall in a minute or so if left idling. What oil and what mix ratio do you guys use?
@@Rakija_ShliwowitzHELLO yes, that is very true but i never got it down to that conclusion, i just ordered a brand new carb off Amazon and i’ll do the fuel tap mod. do you know what size drill bit i will need?
Kid was raised right
no need engine oil ????
Dude is 2 stroke is not 4 stroke
hello anyone in 2024? was wondering what size drill bit was used for the carb fuel tap mod. thank youuu!!!
I did the mod a few days ago. I think i used a 3 or 3.5mm bit, but am not sure. I checked which bit goes through the outlet and did not check the size.
One more sugestion, drill from the bottom (carburetor side). The bottom opening seems a bit smaller and if you open it too much, the gasket will not fit. The hole can be smaller without it obstructing the flow. Basically, when you dissasemble the valve, the bit must be at least the size of the holes in the rubber.
Hope this helps.