Starting up the Kawasaki - Part 1

When you rebuild the whole bike, then the first start is always challenging, to say the least. usually there is a group of problems so this time it is not different.
Carb sync tool doesn't show any vacum. Carburettors are stuck (rebuild is going over two years), and lust is getting longer....

[@qivarebil2149]

Do You have a good compression reading on all four cylinders? I saw in the other video that You have about145 psi, but it should be 169-198 psi. But have You done anything to the valves or pistons after that measuring event? Make sure You open the throttle wide open when cranking the engine to measure the compression - it will go up a bit with wide open throttle. Your 145 psi is a bit low, but they are very even from cylinder to cylinder, so that's a good sign! So I would guess this is because of a small leakdown past the rings, pistons and cylinder walls.
Did You take out and clean all the fuel inlet valves in the carbs? Sometimes, they also have a rubber O-ring under the fuel inlet valve seat - between the seat and the carburetor body. But, then they would overflow, so that is maybe not the problem...
How is the fuel level in all carbs? I would take off the floats, main jets, fuel inlet valves and seats and the pilot jets. Make sure that the small adjustment tabs on the floats aren't bent too much. If someone has adjusted these tabs too much - or uneven, the inlet needle(s) can get stuck in both closed and wide open position.
If You can't check the fuel level with the carbs on the bike, You need to do it on the work bench - with a temporary gas tank connected.
A good tip, is to name the model of the bike and what carbs these are - Mikuni or Keihin?
I'll be following from day to day from here...
Check out MotoRestoFlorida here on TH-cam - he has some very good videos on CV carbs on the Kawasaki fours.

[@balkanboymoto]

Thank you for your input mate.... I will post a new video soon... compression is 150psi and service limit is from 128 till 169 so not for scrap considering this is 50000 miles bike(80000 km). Need to check carb 1 again....

[@qivarebil2149]

@@balkanboymoto While You're in there - check that the ventilation for the fuel bowl works OK. Blow some air down the channel in the rear of the float bowl to check if it's open. Are there ventilation tubes on front of the carbs?

[@stevensapyak7971]

4.1.24. I concur with you about💁🏻‍♂️ MotoResto Florida®️ … his TH-cam channel is Superb‼️

[@ahsansaeed9103]

Hope such content keeps on coming. I just purchased a used GT550 aswell. If you dont mind could you please post a detailed video on how to service front and rear breaks for newbies like myself which includes detailed breakdown of the entire tear down process

[@balkanboymoto]

I already did: th-cam.com/video/TTG9C09Ix4M/w-d-xo.htmlsi=xiPlZ5p4QAe3iZzx