I searched long and hard for an answer to this exact issue. Everyone eludes to the issue but no one seems to give any specifics. In my case, this EXACT issue was due to clogged "bypass holes" in the low speed circuit. This is Mikuni's terminology. Two VERY small holes in the throat of the carbs on the up stream side of the butterfly valve (when closed). Standard carb cleaning cleared the low speed hole but not these. Had to reinsert the low speed screw fully and then blow cleaner thought the low speed circuit to clear them. 100% corrected after that. As others mentioned, this is a lean condition. That's why choking improves the response but its still not right.
@Xenuear4 ай бұрын
got a diagram or any other info?
@jonb20464 ай бұрын
@@Xenuear Page 7 of this manual. Labeled “Bypass Holes” www.eccarburetors.com/assets/images/Mikuni-SBN-Tuning-Manual.pdf
@jonb20464 ай бұрын
@@Xenuear Yes, KZfaq wont let me use links so you'll have to google it. Search Mikuni Super BN Owner's Manual. The link from EC Carburetors is the PDF. It is on page 7 labeled "BYPASS HOLES"
@jonb20464 ай бұрын
@@Xenuear Yes, search "Mikuni Super BN Owner's Manual". Its on pg. 7 labeled "BYPASS HOLES"
@jonb20464 ай бұрын
@@Xenuear Yes, search "Mikuni Super BN Owner's Manual". Its on pg. 7 labeled "BYPASS HOLES"
@martinaleman5691Ай бұрын
I crossed with this video and cause me trouble. The guy didn’t see oil not coming down into the carb. One way valve caused this problem or something on oil distribution lines. Also, running the poor jet ski like that is like sending to the grave.
@nighttrain39262 жыл бұрын
had simular problm with a xl 700, stock pop off was 55lbs , only way i could get it to run good was setting pop off at 30-35psi
@user-qr5mo8uv9j3 жыл бұрын
This not bogging, this lean.
@shannonwilliams601 Жыл бұрын
That's definitely bugging you can plainly see hes not getting fueled into the bomb site
@user-qr5mo8uv9j Жыл бұрын
@@shannonwilliams601 it's a lack of fuel.
@ThatDudeHandy3 жыл бұрын
clean your fuel pump on the carburetor
@ruvimrusev86035 жыл бұрын
I’m having the same issue. Did you figure out what the problem was?
@DavidD4755 жыл бұрын
It was the high and low screws, in combination with using the choke, I got it to work fine ...but it was never 100% ended up selling it .
@ruvimrusev86035 жыл бұрын
Do you remember what you set the screws to?
@jadm60254 жыл бұрын
Rubin did u ever figure it out? Mine is having the same problem
@danielserrano98344 жыл бұрын
Yes it bogging
@shannonwilliams601 Жыл бұрын
No fuel
@shannonwilliams601 Жыл бұрын
No fuel dummy
@johnnymontgomery3113 Жыл бұрын
How do you get fuel to it obviously it’s not getting fuel