Yet Another Spark Plug Question. My Apologies if Repetitive

[302sr1]

I have a pair of Older 240 Offshores (Updrafts). I currently run B9HS-10's in it.

My problem is that we have a very long Idle Zone to get to and from the dock (20-25min). The motors seem to load up a little and make it very difficult to dock. Hard starting in gear, etc.... I'm sure it is loading up a little.

I'd like to try a little hotter plug to minimize these difficulties.

The boat as stated earlier sees a bunch of idle time, and is cruised in the 4500-5000 rpm range with an occasional 7000-7200 rpm blast. Maybe once or twice an outing for less than a minute at a time.

What is your opinion of trying a B8HS-10? Is this too hot for the application?

Oh yea, I'm running Amsoil at 50 to 1

Thanks In Advance for the Advice

[302sr1]

ttttt

[Markus]

Wow, you certainly have a lot of patience, do you? To the top after two and a half hours...

An NGK 8 should be fine in a 2.4 EFI as long as compression is stock. With higher compression, an 9 is called for, or so I am told.

Also, add some more oil to the fuel for those 7200 rpm blasts.

[pyro]

And maybe some different oil, given the track record of the said oil in Merc's...

[302sr1]

Than You for the advice. Sorry for the to the top thing. The forum had a lot of activity and it looked as though it was going to fall of the first page while I was out of the office.

What do you recommend for a mixture , 40 to or so?

I'll do a search on Amsoil, but what adverse affeacts are Mercs having with it?

[j_martin]

Hoo boy!!!!

[302sr1]

Yes, Oh Boy is right. Did a Search and Never Mind Answering the whole Oil Question LOL.

But Ratio and Plug question concerning my application are still welcome

[Liqui-Fly]

And maybe some different oil, given the track record of the said oil in Merc's...

Listen to Pyro...he'd know:rolleyes: