My carburetor is not working well, 3 and 4 is not working
i dont know the cause of it,

 

Hi and welcome!

How did you diagnose that 3 & 4 are not working?
Most likely clogged and dirty carbs from sitting around.

You'll need full carb restoration. Complete refurb with disassembly down to every last nut, bolt and individual part. Everything scrubbed with brushes and PEA-based fuel-system cleaner (including hidden secret passages in carb-body). Spray carb-cleaners no longer work due to removal of chlorinated compounds. Then ultrasonic soak everything. Micro soda-blast at very end to clean up. Adjust float levels with final wet-test. Replace all rubbers: fuel-rail O-rings, pilot screw O-rings, float-valves, float-bowl seals, and slide diaphragms if needed. Sync carbs and adjust idle.

Bike ran perfectly fine when leaving showroom floor. It will again when carbs are restored to factory-fresh clean. Not worth acquiring all equipment needed and learning decades of dark-arts of carb restoration for just 1 set of carbs. I recommend sending carbs to https://customcarbservices.com for expert restoration. Very reasonable prices and quick turnaround.

 

I notice recently that it a delay, from 3& 4 but after some minutes 3 fires up but 4 doesn't, so I change all plugs, still yet 4 delays and my bike do shoot, I decided changing #4 plugs but it still say; now recently after driving a while and I pack it for like 2 hours, it won't start .
I do check through the exhaust pipe with water on it know which hot.

 

Do usual tests:

1. spark, verify all plugs fire strongly

2. fuel, more difficult test with reading plugs. not 100% accurate. But you at least can compare #4 to others

 

Hi , good day pls have been having serious issues with my bike ,I once had a rectifier issues which I made me park the bike for a while till I get it fix ,so I tried starting the bike but won't start ,I took out the carb did a proper cleaning change plugs check it spark and were working well, so it did start but once I put the air filter it will go off so I felt maybe the bike need some firing so I ride it without the filter to a distance for couple of 2hours then I did park the bike, hoping it will work with the filter, but it still won't , so I left the bike till the next day then trying to start the bike and it has never turn up not even shoot for once. Pls kindly help me out if you have any idea on how to go about it .pls boss

 

Hi , good day pls have been having serious issues with my bike ,I once had a rectifier issues which I made me park the bike for a while till I get it fix ,so I tried starting the bike but won't start ,I took out the carb did a proper cleaning change plugs check it spark and were working well, so it did start but once I put the air filter it will go off so I felt maybe the bike need some firing so I ride it without the filter to a distance for couple of 2hours then I did park the bike, hoping it will work with the filter, but it still won't , so I left the bike till the next day then trying to start the bike and it has never turn up not even shoot for once. Pls kindly help me out if you have any idea on how to go about it .pls boss