BR8ES spark Plug Gapping

2006superjet

just one more part....
Location
costa mesa ca
whats most people gapping at.

also does anyone set up the plug a certin way ie. facing the bend of the cunductor to the intake ?


ie.

think its called indexing

http://www.parkeryamaha.com/index.asp?PageAction=VIEWPROD&ProdID=24659

Watercraft Connection Spark Plug Washers

This is a very innovative item that was very easy to over look. The rotational position of the spark plug may seem like an incidental detail, however it can result in a significant performance increase. The idea is to have the (properly torqued) spark plug, end up with the overhead electrode facing the rear transfer port, and the open end of the gap facing the exhaust port. As the incoming charge loops up the back of the cylinder towards a spark plug positioned in this way, the raw fuel is deflected away so that it cannot wet the actual plug gap. This plug positioning can often "clean up" a slight rich condition, and always allows plugs to stay cleaner for longer. The real "on water" increase can be 40 - 50 rpm at peak speed. This is a detail that Group K attends to on all our in house race machinery and magazine test boats (it's fair). Unfortunately we have to accomplished this by torqueing a box full of plugs into each hole until we find the one with the perfect rotation for that particular cylinder (over torqueing to get a better rotational position can result in cracking the inner porcelain of the plug). With these washers, any plug can have the good rotational position. We think these washers are some of the least expensive horsepower and throttle response that money can buy ... get 'em.

anyone do this kinda intense to do but if it works and it gie more power then thats good

so is payying 275 for an enhancer lol when stock is 50$
 

2006superjet

just one more part....
Location
costa mesa ca
wow really

dude thats a good point.
is this green thing a blowsion part or waterdog.
does it give you more hp.
i got rid of mine due to weight.
my ski has hard starts
but ill see if they sell one maybe a camo color
i have to pull start mine

great comment

j/k by the way
 

SXIPro

JM781 Big Bore
I always just threw them in the ski, and recently I gapped them to .026 and the ski felt a little better. We spend thousands on mods to get better performance, why not try something that is free? I have not tried indexing them however.
 

Mark44

Katie's Boss
Location
100% one place
I gap my plugs and have indexed them. I have noticed no difference from indexing really need a dyno to see if there is any kind of gain but I will still gap my plugs every time.

Mark44
 

LBE

Eddie Would Go.
Location
Charlotte, NC
For salt water I gap my plugs to .019 . Not sure why, but with a stock gap , in salt water, the ski does not rev out. Never tried indexing. mabey next plug change.
 
Top Bottom