I did a compression check on all 3 cylinders and all seemed low but all were right around 105. It had new Pistons and rings done by the previous owner he said it had about 6 hours on it since it was done. It starts after 2 or 3 pulls takes some time warming up but once it does runs and sounds great. I did it when it was cold pulled all 3 plugs gave it 4 or 5 pulls with full throttle and all registered almost the same. The compression check was a cheap one I bought at Harbor Freight ( not sure if that makes a difference) anyway please give me your thoughts. Thanks.