Check it usung another gauge just to see if there are different results. Then de carbon motor & do it again. Warm motor up, check with throttle in wide open position, for initial readings then do a leakdown test. A more comprehensive picture of motor health.
I would be leery about the lower results but hate to see someone miss a fair deal in a good even motor over a faulty gauge. Ask seller if hes willing to do that. Could benefit both of you. He makes a sale & you make a better purchasing decision.
Edited by Curtbass (02/26/18 11:26 AM)
92' ChampioN 201DCR Elite