Tune out accel pump on 2001 Virage 700 to fix acceleration bog?

[Bluedmax]

Could you send the videos again I do not see them. I'll see if I can help out. I have had very good luck using the dual carbs with accelerator pump from the older slt sl 700s. Very responsive. No jetting changes. I may have a set, let me take a look tomarrow.

Try these...

https://www.youtube.com/shorts/UJlEDyKbIsk

https://www.youtube.com/shorts/Oj6PP_Plm9s

[K447]

Try these...

https://www.youtube.com/shorts/UJlEDyKbIsk

https://www.youtube.com/shorts/Oj6PP_Plm9s

Tip: To convert YouTube _shorts_ to normal YouTube links, replace /shorts/ in the URL link with ‘/video/

https://www.youtube.com/shorts/UJlEDyKbIsk

https://www.youtube.com/video/Oj6PP_Plm9s

[Bluedmax]

Thanks for the tip K447

[rfitts]

I am having the same issue on a Virage 1200! Installed new cylinder heads/pistons over the winter after one carb ran lean and melted one piston. I believe there is suppose to be some pressure on the fuel tank maybe ~1psi, I have noticed when I open my fuel tank I don't have any pressure so am going to look at the fuel cap seal and fuel tank venting this weekend. I also see that hot products sells return line restrictors to help with throttle response. Maybe this would help. See page 150 of their catalog.

[casey67]

I am having the same issue on a Virage 1200! Installed new cylinder heads/pistons over the winter after one carb ran lean and melted one piston. I believe there is suppose to be some pressure on the fuel tank maybe ~1psi, I have noticed when I open my fuel tank I don't have any pressure so am going to look at the fuel cap seal and fuel tank venting this weekend. I also see that hot products sells return line restrictors to help with throttle response. Maybe this would help. See page 150 of their catalog.

Thanks for sharring your experience, but the tripple carbs you have are a bit different from this single carb.
Yes there should be pressure in the tank, that is controlled by 2 valves. Pretty sure it's covered in the tech section. And of course leaks any where in the system will cause the lack of pressure.

The Mikuni carbs use in-line restricters to control fuel pressure. These Keihin carbs have it built into the return circuit in the carb. Increasing fuel pressure will mask other issues like pop-off, but increasing will also cause issues at cruise, running rich where it's not needed.