Super Jet Watching the fuel and...

[NVJAY775]

My son is banned from my ski. Anyways, he ingested some water... again. It was in the fuel tank. 62t 61x 760cc stock 38's that are jetted pretty good on a limited motor.

The ski ran very rough with lame power off the bottom and into the mid. Top end was only ok. Plugs were looking lean. I richened to see what would happen and not much change at all. The day before the ski was ripping as it has all season. Pulled carbs and intake to check reeds. They were fine, but noticed some milky fuel from water. Pulled the tank and cleaned it, then refueled. No change.

But with the fa off yesterday I did notice at idle, when looking down the carbs, the front carb was fueling and back one wasn't. Didn't think much of it til last night.

So I pulled the carbs today and cleaned the jets, pulled mixture screws and with carb cleaner, blew out all the lines and ports. Everything seemed ok to me.

Put it back together and fired it up and after a bit I noticed the front carb lets out noticeably more fuel than the rear carb. WTF over? And with out getting the ski back in the water I won't really be able to tell if it is better. But watching the fuel differences is bugging the heck out of me.

Any thoughts guys?

Thanks Jay

 

[Matt_E]

Check for a worn needle.

 

[rollin5150]

Worn needle or check your arms to make sure one is not opening the needle to early

 

[NVJAY775]

Arms are good, but I'll check the needles. I'm hoping it's going to be visibly noticeable.

Thanks guys

 

[Matt_E]

If there's a visible groove in the needle, there's a problem. 85% of all carb problems are due to bad n&s

 

[NVJAY775]

I was totally thinking of the wrong arms and needles haha! Friggin newb! lolol... Pulling carbs again and will pull the needle and check and compare arms. Here's a lame vid for your entertainment. Possible stuck needle...? I'll post back after I tear down and inspect and re ass emble.

 

[Matt_E]

Either the n&s is stuck open or it's very worn.

 

[NVJAY775]

I am victorious! My blind ass didn't notice the hinge pin screw was loose and the needle was WAY out of the seat. She's rippin again!

Thanks for all the help felas. You guys rule! Got me going in the right direction again.