hotter plugs in Force 15 hp

[pecheux]

Good day y'awl, Now I do not remember if I previously asked the question or if I just thought about doing so ... and please dont ask me the reason for that ... lol

My 15 HP Force smokes when idling ... I know they all do but this one smokes way more than my OMC 9.9 Yes I have tried synthetic oil ... and even Saber 100:1 ... and got back to normal TCW3 Castrol and besides the troat catching smell or the Saber ... it still smokes more than I care to. (I sit next to it ... tiller ride)

Question is: Would using hotter plugs call for cleaner gas/oil burn in piston and thus put out less smoke ??

I dont know what brand or number plugs are in it now and I cannot access it for the moment ... being stored for winter.

Thank you all for your feedback.

 

[Frank Acampora]

Re: hotter plugs in Force 15 hp

Can you use hotter plugs? You can do anything you want! Should you use hotter plugs? Outboards typically run hotter than auto engines. On the smaller engines, which use bent electrode plugs, you might "get away" with a slightly hotter plug--but then again, you might end up replacing the pistons.

On the larger Chrysler and Force engines, using a (hotter) bent electrode plug to replace the (cold) surface gap plug is guaranteed to melt a 1/4 inch hole in the piston crown.

 

[pecheux]

Re: hotter plugs in Force 15 hp

Frank, that pretty well says it all ... lol Actualy I knew I could ... but was questioning if I should ... lol
Admitedly I had no idea a hotter plug could do so much damage to an OB.

May I ask you the difference between a bent electrode plug and a surface gap plug ? Tx

 

[steelespike]

Re: hotter plugs in Force 15 hp

A bent electrode is just that typical of 90 percent of plugs.A surface gap
has a smooth end with a center electrode flush with a ceramic surface the spark flashes across the surface of the ceramic to the metal edge.Usually used with high output ignitions.
If your carb is adjusted right and it still smokes sometimes a bad fuel pump diaphram will leak fuel into the crankcase causing excess smoke.