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WakeWorld Discussion Board » >> Boats, Accessories & Tow Vehicles Archive » Archive through July 28, 2009 » Spark Plugs and Wires? « Previous Next »
By Robert A (cocheese) on Wednesday, July 01, 2009 - 7:24 am:    Edit Post Delete Post
We purchased our boat last year and it had 130hrs on it. It now has over 300hrs. How often should you change spark plugs and wires? I called a local dealer and he said to change them when you have problems. No problems, leave them alone. Every car I have owned has a certain millage to change plugs and wires. What "problems" would require changing spark plugs?
 
By Charlie Koch (cwkoch) on Wednesday, July 01, 2009 - 7:42 am:    Edit Post Delete Post
Wires should be good for a long time. Plugs- pull a few and look at them. If they're pretty clean, but a little brown, they should be fine. If they're really black and nasty looking, change them.
 
By tommy robertson (tomcat22) on Wednesday, July 01, 2009 - 7:58 am:    Edit Post Delete Post
I just changed the spark plugs on my boat but left the wires. My boat has 325hrs. I was told to change the plugs by my dealer at 300hrs.
 
By AtTheLake (bmartin) on Wednesday, July 01, 2009 - 8:01 am:    Edit Post Delete Post
I change them every 2 - 3 years, which is about every 300hours. It may be a little more than recommended, but it is easy to do and fairly inexpensive and like the fact that it might get me a little more fuel efficiency.
 
By trace (trace) on Wednesday, July 01, 2009 - 8:02 am:    Edit Post Delete Post
Rough idle and missing can be signs of plug wires going bad. Also if you look at the motor running in the dark, you might see a little electrical storm going on. IMO plug wires in a boat are more subject to deterioration over time, rather than hours on the motor. I just replaced mine on my 1996 model which had developed a slightly rough idle this season.
 
By Kyle (Slingshot) (kylenautique) on Wednesday, July 01, 2009 - 9:09 am:    Edit Post Delete Post
Depends on how much you use your boat. If you put 25-50 hours a year on it, I would tune it up every other year. I put over 100 hours a year in my boat, so I tuned it up every season.
 

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