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rock
04-02-2023, 01:23 PM
Motor needs buzhw-2 and I cannot find them. Anyone have em or know where to get. If NLA what else works. Thanks

Rock

Aaronhl
04-02-2023, 01:36 PM
ebay?

FMP
04-02-2023, 06:22 PM
Do you really need the z ,less than 40ohms?
Denso SF51 is about it without the z , if BUHW then SF50 , both heat range is near exact to the NGK
Autolite 2852 is a copy of BUHW , without the tungsten but same heat range.
NGK and Champ stopped the surface gap, couple years now.
Champ because they don't care, NGK had tungsten supply issue I was told by them.

25two.stroke
04-03-2023, 11:56 AM
Does your motor need surface gap plugs? buhw2 is hotter than buhw, buhx is colder than both of those. buZhw-_ is just resistor in the surface gap plug. I run br8hs-10 plugs in place of buhw when I want a standard electrode rather than gapless. If gapped would work for you I would try a br6hs-10. Sorry its not as scientific as other peoples' responses; its just what I have found.

FMP
04-03-2023, 06:56 PM
Buhw is the coldest from what NGK said, x is a wider gap still and sunken
BUHW is about 0.052" gap as the 2852

25two.stroke
04-03-2023, 07:33 PM
QL78V is the direct cross reference from the BUZHW-2

I've been using L76V in place of the BUHW where gapless is needed and QL76V where a resistor-type gapless is needed (like the BUZHW) and have not had any issues.

rock
04-04-2023, 08:05 AM
BUHW is about 0.052" gap as the 2852

That is why the -2 matters. The buzhw-2 has a .072.

Rock

racer
04-04-2023, 08:17 AM
Advance auto is showing available. I went direct to NGK and used part finder

FMP
04-04-2023, 09:43 AM
That is why the -2 matters. The buzhw-2 has a .072.

Rock

Denso SF51 then if you need the gap
Autolite 2872 has more gap around 0.065" but its likely a typo and its .072" , call autolite directly or the Denso SF51
I like the Autolite because like the BUHW the electrode stands proud to surrounding ground by about 0.004".
Most others are sunken below.
Original old champ L20V were the same until one day they changed to sunken.
In the chamber, the BUHW 2852/72 sits flush with only the electrode proud to chamber surface right in the mix to light it off . I use them in xflows as the best of all plugs.

WestMarine is showing clearance on the -2

FMP
04-04-2023, 09:44 AM
QL78V is the direct cross reference from the BUZHW-2

I've been using L76V in place of the BUHW where gapless is needed and QL76V where a resistor-type gapless is needed (like the BUZHW) and have not had any issues.

All out of production for 2 years

25two.stroke
04-04-2023, 10:29 AM
All out of production for 2 years

Dammit, youre right. I still have them on the shelf from a few months ago when I last ordered them. But my supplier musta had old stock cause I know I've ordered more recently than 2 yrs!

FMP
04-04-2023, 11:28 AM
Clean them , check them end to end for perfect continuity or the R value, Z is less than 40ohms give or take, Q in champ... No clue what they set as , they go in the garage.
For awhile Champ was saying use a j plug in the xflows we like, that's like a glowplug with the tight heads and some even hit the defector, try the other two AL and Denso.

rock
04-04-2023, 12:24 PM
Interesting conversation but I found them and they will be here in a few days. Thanks all.

Rock

FMP
04-04-2023, 11:01 PM
Hope the computer doesn't send you BUH and call it good, that's also happened lately.