Mikuni carburetor

[xboxrox]

xbox,
With respects I need to correct some of Your info.
Dielectric grease is not conductive, as such if a sensor connector is filled with same there is a good chance
sensor input, ground, or v/ref could be skewed. ( sensor circuits are 5v & usually <.005 ampere ).
As far as plug boot usage , all I ever used was dielectric , 20 plus years as dealership driveability tech
literally hundreds of plug and wire changes.
Perhaps the tube label your looking at is 'thermal grease' ?
Thx.

Yes I better read that label again -- I bought the large dispening tube and used a big glob of it in the spark plug boots 2 years ago when installing new wires & plugs -- the engine ran like crap after that -- ?? So after I cleaned off the dielectric grease it ran good like it had new plugs & wires... On the carb TPS (throttle position sensor) I remember injecting a big glob of it into the TPS connector after Vernon had super glued my original carb's cracked phenolic body... On startup the truck ran crappy not smooth like before -- next was gas still leaking bad glue for gas -- rcvd J/Y carb & installed the truck ran weird crappy still BUT NO gas leaks -- so, I'm gonna try paint thinner to clean out that goop as electrical contact cleaner spray & wiping does not get it out -- I want it clean NO GOOP when we try starting it with this rebuilt carb --

My Lenovo T61 laptop has FAN ERROR -- so soon I will try my hand at electronics rebuilding

[85Ram50]

I remember injecting a big glob of it

Well there's your problem.
It is meant to be a light coat. Using it on plugs if there is too much it can cause the plug wire to pop off the plug from fully seated and ditto the distributor cap. Yes it happened to me.

[xboxrox]

Well there's your problem.
It is meant to be a light coat. Using it on plugs if there is too much it can cause the plug wire to pop off the plug from fully seated and ditto the distributor cap. Yes it happened to me.

You're right on both counts -- it is non conductive & directions say use sparingly -- I thought dielectric grease would improve a connection but it does just the opposite... I injected a pea size amount of it into the spark plug boot BUT I'm going back in to remove it to achieve a better electrical connection to the spark plugs...