i have a 2002 954RR I have done compression test it was good,new plugs,fresh gas but when I crank it up and let it run for a bit it seems like it wants to foul out a plug 1 and 2 cylinder is firing but plug is white 3 and 4 cylinder acts like its wanting to foul out the plugs and I noticed in first gear the bike has plenty of power then I go to second and it don't have what it use to so for example if I stand it up in first gear then go to second gear its like the power isn't there to keep it up any help would be appreciated...thanks in advance oh and it only has 10,464 miles on it

 

Seems a coincidence but check the FPR

 

I have checked the fpr its good spark is good I'm lost to be honest

 

Hi did you take the vacuum pipe off the Fuel Pressure Regulator to see if it leaks, and have you got any fault codes, maybe do the fuel pump test