Bosch Spark Plugs

Ken Pearson

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Aug 31, 2006
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16
Does anyone know the spark plug number for either a Bosch or NKG plugs for a 1998 Mercury :'(200 EFI
:=
 

Laddies

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Sep 10, 2004
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Re: Bosch Spark Plugs

Need the year, there are differant plugs for differant years
 

Ken Pearson

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Aug 31, 2006
Messages
16
Re: Bosch Spark Plugs

Thanks, I had changed the plugs here while back and wan't able to find either the NGKs or the Busch _lugs abd put in Champion plugs. They seem to foul out faster.
 

gss036

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Jan 18, 2003
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2,914
Re: Bosch Spark Plugs

West Marine/Boaters World both carry them. About any auto parts place can order them for you.
 

Ken Pearson

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Joined
Aug 31, 2006
Messages
16
Re: Bosch Spark Plugs

Does anyone know what the difference between the BU8H and a BUZH8 (NGK)? I contacted a local dealer and the second one was the number he gave me with a price tag of 159.95 per plug.

I am having a running problem. I rebuilt the fuel pump because it was dieing while it sat and idled and didn't have enough power to pull the boat onto the trailer. After rebuilding the pump it seemed to have the power but it started missing. I didn't know when the last time the plugs were changed so I changed them. Wasn't able to get Bosch or NGKs (on Sunday) so I got Champion plugs, replaced them with. It ran better for a while, had the power and wasn't dieing in idle and it wasn't bogging out at the trailer. Then it began to be hard to start (first thing), then it began having to be throttled up to start after sitting for awhile. I pulled the plugs an it appeared that the lower two plugs were an oily black. Should I take it in for a diagnostics? I am getting the new BU8H NGK plugs today but I don't know if it will fix the problem or not. Hope I given youo enough info.

Ken
 

Laddies

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Sep 10, 2004
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12,218
Re: Bosch Spark Plugs

The first number is a non-resistor and the second is a resistor, I don't know where the dealer got his info:$:%:'(
 

gss036

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Jan 18, 2003
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Re: Bosch Spark Plugs

This looks more like a reasonable price. The quote for $15.95 is a bit high, unless that is the dealer installed price. Some shop rates would make that about a 10 minute job @ $100 @ HR.
NGK BU8H Spark Plug. Other products by In Between Books. Price: $3.49. Availability: In Stock. ... Item model number: BU8H .. This is Boaters World price.
IBOATS probably has them for the same price, but shipping will cost as much as the plugs.
 
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