Hi guys and Gals.
I currently have an 07 130hp GTI 4-Tec that I bought new so I am somewhat familiar with the 4 tecs, I do my own oil changes and winter storage preps.
I'm currently looking into purchasing a 155hp sportster used, however given the time of the year I can't water test anything at this point while the price are still reasonable (winter mode)
So I am wondering what the compression should be on a 155 and what the correct way to check it would be?
both plugs removed? or 2 plugs in and the tester in the 3rd?
Wide open throttle?
Any other tips to tell tale signs of issues to look out for?
thanks in advance