- Wed Apr 01, 2015 7:00 pm
#4852
I have recently bought a 1952 RE 150 Ensign. I am using a 25:1 Castrol GP50 oil mix. It runs but was struggling to reach 30MPH. However, when experimented and removed the air filter it ran much better and reached 38mph. The max speed for the bike should be about 48mph so it is still not performing 100%. I have cleaned the filter but it is difficult as it is mesh in a sealed unit but appears to be fairly clean. Can anyone advise on what it going on here? Am I using the right 2 stroke oil and mixture? Is the filter OK or should this be updated? Otherwise the bike runs well in the 30mph range. It has only 4000 miles on the clock and is in great condition.