Need 2.0 help

[Ryan140]

Have 85 2.0 150 with horz reed, wh22, and 200 tuner. Motor will only run on 3 cyl. Motor is missing on 2 3 and 5. We have replaced stator, switchboxes,coils,triggor,plugs,wires,and tried a different flywheel. the motor starts up and idles great but just on 3 cyl. We have fuel to cyl, fire at plugs, and decent compression on all cylinders. Does anyone have any suggestions?

[wrenchhead30]

Mine did the exact same thing I did everything you tried, and found out that the upper crank bearing was fried out! What was happening was the crank was moving just enough under load(was running great at idle) that it shifted the stater over just enough so it wouldnt spark on them cylinders!!! The previous owner put the bearing cap on backwards I spent alot of money before I figured that one out. Well its something to look at, good luck!!
Jeff:p

[Talon2.5]

good food for thought there wrenchhead !!