what year and which spark plug is correct

[matt.o]

I'm trying to buy a new used boat and need help with the year and spark plugs. model # is j200txerk and ser. # is g 03653582. their is also 2 different type plugs in it now. the top and bottom cylinders have QL78YC AND THE MIDDLE CYLINDERS HAVE QL87YC. iS THIS NORMAL OR DID SOMEONE REPLACE THE PLUGS AND REVERSE THE #'S? aLSO WHAT COMPRESSION SHOULD THIS ENGINE HAVE IF I DECIDE TO BUY IT?
THANKS FOR ANY HELP
MATT

 

[Faztbullet]

Re: what year and which spark plug is correct

BRP chart shows QL78YC gapped @ .030

 

[matt.o]

Re: what year and which spark plug is correct

Thanks any idea what year it is?

 

[Vic.S]

Re: what year and which spark plug is correct

94 , but answered elsewhere

 

[seahorse5]

Re: what year and which spark plug is correct

I'm trying to buy a new used boat and need help with the year and spark plugs. model # is j200txerk and ser. # is g 03653582. their is also 2 different type plugs in it now. the top and bottom cylinders have QL78YC AND THE MIDDLE CYLINDERS HAVE QL87YC. iS THIS NORMAL OR DID SOMEONE REPLACE THE PLUGS AND REVERSE THE #'S? aLSO WHAT COMPRESSION SHOULD THIS ENGINE HAVE IF I DECIDE TO BUY IT?
THANKS FOR ANY HELP
MATT

Sounds like someone was doing some mixing and matching instead of following the factory plug chart, or they may have been dyslexic.

http://continuouswave.com/whaler/reference/BRP/SparkPlugChart2008.pdf