Unknown issue

[Ahmed AN9]

Don't know how to start. The ski had a dual 44's and new rebuild kit.
First, the ski was fine but slightly bog which had been fixed by reducing the high speed adjustment from 1 1/4 turns out to 1.

The ski stopped normally on the beach for about 30 minutes then when i start it it bogged hard like full of fuel i tried to burn the excess fuel but didn't succeed. I put the ski on the trailer and it rev good till the WOT but on the water nothing.

I played in the high speed adjustment till i reached to 1/8 turns out. First, it was fine and accelerated smoothly but after a while it did the same. I closed the high speed adjuster fully and did the same with 1/8 turns.

I attempted to check the spark plug reading and when i pulled the plug boot, the spark plug wire came out from the boot. ONLY one of the wires.

First question. Do i have to consider the carbs to be the reason? And how can the ski still accelerate with the high speed adjusters closed.

Second question. If my issue caused by the plug wire from the beginning, is the symptoms will be the same .

 

[Roseand]

Sounds like you need to cut back your plug wires and give it another go. Could very much be as simple as that.

 

[Ahmed AN9]

Thanks for the valuable info. JC. This is what is going to be done today. I will cut back the wire and install it back again then test.

 

[SRQski]

Put your high speed adjustment back where it was and quit messing with it until you fully understand the fuel circuit through the carbs. Group K has an excellent article on their website explaining the fuel circuit. Never run with the adjusters closed, ever - that is playing w fire.

Your description sounds like your needle and seat are leaking (loading up after running and sitting for awhile w hot motor)
Fix the wire, doubt that's the issue but could be. I'd rebuild carbs, Mikuni parts only, replace n&s while rebuilding.

Sent from my SM-G960U using Tapatalk

 

[Ahmed AN9]

I have the wire fixed and the high speed adjustment is back to the previous setting. Everything is normal and smooth in the beginning till I had the same symptom again which caused by the B-pipe tuning screw. the pipe is tuned to be cooler by opening the top screw 1/4 ,the middle closed and the bottom is 1/8.

thank you guys for the instructions