Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
OK say if I'm reading this correctly (-IZFR6J (NGK)for 150/175/200 ProXS (200 ProXS Serial #1B912786-up) & 225-250 ProXS and Racing XS Motors
-2006 & prior ProXS: .032-.033 I need IZFR6J gapped at .032 since mine was mfg 2005. I'm not sure if it is a racing XS or a ProXS? Sorry if this seems like a stupid question but mercury parts seems pretty unorganized. I asked their customer service about the latest PN for the air compressor and it isnt even shown when i look at my engine in their online parts catalog.
2006 Ranger 521VX w/ Gorilla Hull
2005 Mercury 250XS L 0T999348
0T999348 is a Mercury Racing 250XS. IZFR6J @ .032-.033".
Try looking those parts up on OUR website. We've put a considerable amount of work into making it the best we could (given what we had to work with)- and there's even an Archive Parts Lookup.
When the part goes in the shopping CART, the latest part number and pricing is automatically applied.
European Marine Parts Department
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
2001 Merc 150 efi OT279244
just got a set of NGK BPZ8HS-10
what is the proper gap for these plugs?
Also does the cocktail aid in cleaning the injectors at all?
Thank you!
Your engine is a 2.5L Model (this is the 3L Forum). Best to open a separate thread for your engine.Originally Posted by Duckdawg
.040" is the correct gap for BPZ8HS-10
Cocktail will aid in keeping the injectors clean, but will not be a solution for restricted injectors (or injectors that are already in need of cleaning, service or calibration).
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
I saw an old post that had this -2006 & up: .042-.044" gap for best idle performance. (150/175/225/250 ProXS/XS) quoted but I see the pinned thread must have been updated at some point?
-2007 & up: .042-.044" gap for best idle performance. (150/175/225/250 ProXS/XS)
I just want to confirm that I should be using a .032-.033 gap?
250 ProXS (1B447058)
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
I saw this on NGK's website. "NGK doesn't recommend adjusting the plug gap more than .008"
According to their site they say the IZFR6J is gapped at .031. If the above is true I can only go to .039?
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
Did you look in the 4 stroke section?
http://www.bbcboards.net/showthread.php?t=570238
Honora Primum Vel Nullum Omnin Honorem
I use an old Stabil bottle quart size with the side measuring thingy on it, lol not sure how to better describe it.
I use a couple empty quickclean and quickcare bottles. I put a band of duct tape around them to identify which ones are the shooters.
Honora Primum Vel Nullum Omnin Honorem
2003 Ranger 521VX
2003 Mercury 250XS S# 0T652530
Don, 2014 Mercury 150 Optimax Pro 2 stroke S# 2B117592 -- parts manual shows NGK IZFR6J-11 plugs. I have read where people state the gap is @0.35 isnt it supposed to be 0.41 ish on the 150 Optimax Pro? Dealer replaced my plugs while back and when I pulled them they are all set @0.35. Runs ok but hard to start at times. Low Idle great. Replacing plugs myself this time due to motor hard to start after running. Turns over great but sputters and coughs then fires up but NOW after plug change no difference in starting but idles rough and stalls out on idle. I was able to purchase NGK IZFR6J-11 plugs (pre-gaped at 40ish. -- again when last dealer replaced the plugs they used NGK IZFR6J which they gaped at 35ish. Which plug gap do I use on this motor? Any ideas on why so hard to get running after stopping. acts like flooding with fuel. New batteries, all 3 new fuel pumps, new alternator, new starter relays, fuel pressure in the 90's and air pressure in 100's (sorry gauge doesn't read higher than 100 to give you an accurate number on this)
Thanks for any help you can throw my way
Mack
Mack McKinzie
Bryan Texas