Hey all, I just bought a 98 Javelin 389b with a 98 Johnson 175 Fast Strike on it . Model number J175glecd. At test ride it had trouble getting on plane a couple times and was too slow on top end. It would only turn 4800rpns at 52mph with a 14.5x24 Raker 3 blade. I figured old gas or dirty carbs. Bought it, drained fuel put fresh 93 octane mixed 50:1 with Evinrude synthetic blend and a can of Seafoam. Also found warped bowls, sanded flat, cleaned carbs, replaced bulb with Evinrude bulb, installed new QV78yc ??? Plugs gapped at .030”. Did the link and sync (was WAY OFF, carbs halfway open before timing started to advance.Had really high expectations first time out. Big disappointment, it ran WORSE!!!! When I got home I put the timing light on it and was shocked to see the erratic timing. Cylinder 1 was jumping all over the scale, cylinder 3 would switch from 4 to 5 to 3 and so on. Bought a new Evinrude sensor (old PP looks to be CDI since it is blue) got home, installed, and at first idle it was a lot smoother. Put the timing light on 1 and it showed a consistent 4* atdc, went down to 5 and it held good, went up to 3 and it flashed a 4. Thinking wires may be reversed I went to 4 expecting to see 3 and low and below it flashed 6!!! As engine got warmer the good cylinders starting fluctuating and running really rough and dying. Idle screws are 7 turns out. I am idling in a test tank. I bought a Clymer manual same time as the optical sensor, after reading it seems like a bad PP. Would you all agree???? What brand to buy???? I can buy a OEM locally for $280 and already have a new OEM matching sensor, or order a CDI package??? Thanks in advance.