95 Force 120 HP - Cold vs Hot Spark plugs ? Do I have the right plugs?

[BajaFishin]

Hi,

I went to local marine shop to get some spark plugs, after I told him the model of the engine, he asked me cold plug or hot plug, I have no idea, so he give me NGK BUHW-2, told me it’s hot plugs (I think the “-2” means hot plug). But I came home and look at the repair manual, it says – NGK BUHW or Champion L76V…

Can I use the hot plugs?

TIA for you knowledge

Baja

 

[corm]

Re: 95 Force 120 HP - Cold vs Hot Spark plugs – Do I have the right plugs?

Re: 95 Force 120 HP - Cold vs Hot Spark plugs – Do I have the right plugs?

Hi,
No you can not. The gaps to wide. Get the ones mentioned in the book.
You engine will run much better on them.

 

[BajaFishin]

Re: 95 Force 120 HP - Cold vs Hot Spark plugs ? Do I have the right plugs?

Corm,

Thank you for your reply... And I am so sorry to post this on Mercury board, I should of posted it on Force...

Well the true is that I have been out on the water with those plugs twice, and it stalls every time when I put it on gear and it run so rough..


I put in the right plugs this time, but I haven't take it out yet..

I hope I didn't damage anything, what would it happen then? if I keep use those plugs?

Thanks for the info anyone.

Baja

 

[corm]

Re: 95 Force 120 HP - Cold vs Hot Spark plugs – Do I have the right plugs?

Re: 95 Force 120 HP - Cold vs Hot Spark plugs – Do I have the right plugs?

Hi,
You did not hurt anything. It just will not run good.

 

[CharlieB]

Re: 95 Force 120 HP - Cold vs Hot Spark plugs ? Do I have the right plugs?

There is NO difference in the heat range, the -2 is the gap.

Look at both plugs and you can see the difference in the gap.

The -2 will be fine at idle and light throttle but at WOT it may missfire, too much gap for your ignition.

 

[BajaFishin]

Re: 95 Force 120 HP - Cold vs Hot Spark plugs ? Do I have the right plugs?

Thanks Charlie for the info.

I hope I have solved the problem by using the recommanded the plugs.

I will let you know this coming weekend.

Baja