The videos arent mine but thats exactly how it feels and sounds. I am clueless what to do next, because i need to travel soon but the bike is uncomfortable to drive even for 2 km.
Check the downpipes to see if one or two are no getting hot. That sounds like it's not running on all four
I readjusted the TPS, got it to 5000 rpm , and i started the engine again. I could notice some 10% improvement but the problems are still all there. The engine is running very rough, jitters and vibrates
Changing the spark plugs would do any harm just to rule them out. However 2 and 4 would probably be a carburettor problem rather than coil or spark plug as 1&4 share the same coil and 2&3 share the same coilWas the bike left unused for a long time?
Before you go any further just check if the plug caps are on the right plugs. It is possible the two on the left or the two on the right were mixed up.There should be a label number on each lead 1 on the outside on the left and 4 on the outside on the right. Left and right as you sit on the bike when sitting on the bike
Check the leads are on teh correct plugs. From the left hand coil they should go to plug 1&4. From the right hand coil, to plug 2&3.Sounds like he plugged them back incorrectly after fitting new plugs.
If the carbs were off it is possible the rubbers front and back were not put on properly you need to check them especially the two with the issue.If they are all on correctly check that all the vacuum take off caps are on properly between the engine and the carbsOpen the drain screws on 2 and 4 and let the fuel flow out.Turn the kill switch to off and switch on the ignition. Now watch the fuel flow from the drains when you switch in the kill switch, you will hear the pump clicking. If fuel flows from both then the fuel is getting to the bowls. Turn of the kill switch and close the drain screws. If it only comes from one the close the drain screw on it .Now turn on the kill switch again check the flow from the one that wasn't flowing. If it flows then turn off the kill switch and close the drain screw. Turn on the kill switchTurn the ignition on and off until the pump stops clicking when indicates the bowls are fullRemember the pump times out after a short while and the ignition needs to be switch on and off the reset it.Start the bike and see it the issue remains
Quote from: BBROWN1664 on 23 July 2023, 10:52:21 amCheck the leads are on teh correct plugs. From the left hand coil they should go to plug 1&4. From the right hand coil, to plug 2&3.Sounds like he plugged them back incorrectly after fitting new plugs.Checked that and based on the labels they are in right order