Just had a quick question about this. I'm running out to Attica in a few days and was wondering since I'm low on 110 octane unleaded gas, can I run leaded gas without having to switch out domes and or make any other modifications? Is there a performance difference at all?

 

Your safe to do it for the weekend without having to swap domes, as long as the octane rating is suficient. Continued use of leaded fuel can lead to deposits that could cause problems, but it may not be a problem at all on a 2 stroke. I've seen lead deposits "hang" a valve on a four stroke after about 1 1/2 years of running leaded race fuel.