98 GP1200 Bogs at low speed - Carbs just rebuilt

[ncmts]

Just rebuilt all 3 carbs and set the low/high speed screws to the recommended turns in the post here on SBT forum. Replaced all the filters too. pop-off pressures great.

Took it out today for the first time since rebuild... starts up great and idles wonderful ... but at WOT from idle and coming off high speed run -> will start to bog down and has audible noise that sounds like it is pushing alot through the carbs.. (not sure how to describe the noise since it isn't really missing or hesitating) - just sounds like it can't process the mixture and will slow down ... then at a higher RPM (forgot to look).. hold on and runs fantastic.

Not sure if I should adjust the low speed or high speed adjusters since I don't want to mess with that higher RPM power..

Any help would be appreciated.

Thanks.

[Technical Support]

Re: 98 GP1200 Bogs at low speed - Carbs just rebuilt

If pop-off is too low the carbs will load up with fuel at idle and lower rpms then when you take off it boggs until the fuel is used up, Did you set pop-off to around 50-55psi?

[ncmts]

Re: 98 GP1200 Bogs at low speed - Carbs just rebuilt

Yep.. pop off was around 52-56 on all three carbs... It also does the same after coming off a WOT run before going back down to idle. Like when WOT and into left or right hand turn...

[Technical Support]

Re: 98 GP1200 Bogs at low speed - Carbs just rebuilt

Are you running any type of aftermarket air box set up? It almost sounds like the pop-off is too high but you seem to be around the correct psi, it might be worth it to bring it down to 40 and see how it acts.