Re: Johnson 5hp TD20 ignition timing facts & figures?

[legendre]

Howdy aquasonic,

I sure can’t find any issue with the new carb linkage – the main carb’s butterfly valve appears to be opening & closing just as it ought to.

And yes, the various springs & keepers in the linkage are exactly where they ought to be. My only changes are substituting proper hairpin (aka ‘R’) -type spring clips for the factory ‘bent up chunks of wire’ in the linkage – and no, none of the clips are snagging or hanging up on anything else.

We can agree – the 65 psi compression readings aren’t exactly ideal, yet they’re not below the generally accepted figures for a motor of this type and age. And my ‘good’ motor is in about the same psi range as well.

And just as you note, my ‘good’ motor will idle very reliably at around 2 or 3 clicks ‘up’ from the full low-speed setting. Something is hobbling the present motor, and I’ve still not nailed it down..