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I picked up a 6 HP Johnson for next to 0 beer tokens.----Tag says ---" low compression " ----as reason it was set aside.------I tested it at 90 PSI.-----Doubt there is an issue.-----These motors have a hole above exhaust ports.-----Bleeds off compression at low speed.-----Makes for smoother...

Compression varies from motor to motor.---Not a well understood concept.------There is no GOLDEN RULE for it !!

Many motors with small problems end up on the market.----Bonus if you know motors and simple trouble shooting.----Many dealers now frown on older motors because the owners are not an easy source of revenue.-----Older motor give you years of low cost boating if you learn the basics.

Make a thin shell cowling using carbon fiber I say.

An E-tec behaves like a 4 stroke for part of the rotation of the crankshaft.

What was the compression on a Ford model T-----Google it to learn.

Check it at home on the trailer.-----Empty the carburetor.---Hook up timing light.-----Advance to full throttle.----Turn ignition to " ON " -----Wrap rope around flywheel.----Have assistant wind it over.

Unlike 4 strokes the E-tec uses low friction ball and needle bearings.----Less internal drag.

Timing is fixed for the life of the motor.----Some folks still insist on meddling with it.-----What is your motor doing / not doing?

My mistake.-----Confused with the 18XD / 20 / 25 HP models.

I think the 9.9 might be / is a looper.----And it will run at 90 PSI.-----Remove bypass covers and inspect pistons / rings.----Easy and no parts needed to do that.

Did you remove the flywheel or check timing mark ??

Is top piston at TDC lined up with timing mark?

Switch plug wires?---Wires from powerpack to the coils?----Orange / blue stripe if for the top.

Check flywheel key.

Many 25" motors available.-----Location is everything.----Know of a 25" 8 HP now used on a 19' boat with great success.----Extension kits may be available.----New motors use up a lot of beer tokens.

Worked in a facility where a machine used stainless bearings.-----And lubricated by water.-----Fairly low operating speeds.

Where abouts in Canada?----See if your local shops work on these motors.

With the motor the seller perhaps put " lipstick on a pig "-----A Force motor is NOT a Mercury.

Any pictures of this 125 HP motor with cowling off ?----Pictures of carburetors?