Bought a 1980 fl250 years ago. When I bought it it was in okay shape need new top end and so on. Had it bored out got a piston and rings and such had much more compression. Trying to start it one day I broke the key way and had to replace it and ever since then it's been a nightmare. I have the electric start and before it would turn over the motor easily and start it. After the new key way the electric start would barely even move it and I mean barely. Took the head off a couple of times to see if anything looked bad. And nothing. Decided to put a compression tester on it today because it feel like it has to much compression and is super hard to pull. With spark plugs in but without it turns good. The conpression tester said it was at 120. So I'm puzzled. If you have any ideas what could be wrong feeel free to drop some knowledge. Thanks