Engine breaks down under power in the high rev range. sound like loss of spark or fuel starvation. I recently replaced wire harness by soldering new ones to existing because I couldn't<br />get to the harness plugs etc. Checked fuel diaghram and looks stretched should it be taut?<br />The motor did run OK on the test run but developed this problem after a couple minutes. <br />What would be the checks to do for this type of problem.
