Spark plugs

[puffitu]

Here’s one which I came across in recent weeks. I decided to do some maintenance and change the spark plugs among other things and much to my surprise my 125hp did not like the new plugs! Bought a new set again just to make sure and same result. Both times tested great for spark in the drive way but both times at the dock the engine barely started and very low RPM. Changed back to old plugs and all was good. Any one else come across an issue like this?

 

[jerryjerry05]

You change brands? or heat ranges??

 

[puffitu]

Buhx ngk

 

[The Force power]

I use BUZX & they seem to work good on the 90 HP, What did you run before?

 

[puffitu]

I use BUHX NGK plugs-should I try the BUZX?

 

[The Force power]

Z is an higher heat range That's all I know, but I'm not an expert in Spark-plugs (or anything else) lol

 

[puffitu]

Well then I’ll have to take a look at the buzx. I am noticing that the 125 is running cooler than the 120hp with the buhx plugs