Just purchased used 2004 FX HO cruiser want to do a tune up - PWC Forum: The best hang-out for Personal WaterCraft enthusiasts
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Old 02-28-2012, 11:26 AM   #1 (permalink)
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Default Just purchased used 2004 FX HO cruiser want to do a tune up

I just recently purchased a 2004 FX HO cruiser and wanted to start off fresh with new plugs and an oil change.

Does anyone recommend a good website to get the plugs (NGKCR8EB) and oil filter? I have checked my local autozone, pepboys etc and cant seem to find the plugs or the filter. I would like to put a K&N on it. I have found a fram at advance autoparts but would prefer the the KN.

Thanks in advance!!!

Mark
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Old 02-28-2012, 04:15 PM   #2 (permalink)
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I always get mine from Amazon. You can't beat their prices, especially if you are a Prime member. You need the K&N 303. It is much better than the Yamaha filter, and has a lug on the end that makes getting it off much easier:
Amazon.com: K&N KN-303 Motorcycle/Powersports High Performance Oil Filter: Automotive Amazon.com: K&N KN-303 Motorcycle/Powersports High Performance Oil Filter: Automotive
Avoid Fram filters!!!


They also have the plugs:
Amazon.com: NGK (7784) CR8EB Traditional Spark Plug, Pack of 1: Automotive Amazon.com: NGK (7784) CR8EB Traditional Spark Plug, Pack of 1: Automotive


Be sure not to overfill the oil............very common mistake on this engine. Oil level should only be checked when the engine is HOT, never cold. You need to run it on the hose at least 10-12 minutes, and even then the engine will not be hot enough to give an accurate reading, but close enough to do the change. Shoot for 1/2 between high and low marks on the stick, then when you have it on the water after riding for at least 15 minutes, check it immediately after you get off the ski while its in the water to get an accurate reading.

Carry some spare spark plugs with you on the ski. A fouled spark plug is the most common cause of any performance problems with this model. If something isn't running right, always change the plugs as a first step. Also be very careful not to over torque the plugs, they will snap off easily. Use a torque wrench (I think it is only around 9 ft lbs.).
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Old 02-28-2012, 04:37 PM   #3 (permalink)
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Thanks Ernest! You probably get sick of answering the same questions. I ordered the plugs and the K&N. Next is oil. I run Amsoil in everything I got now, do you have any recommendations? Can I pick up PWC oil at West marine? or should I pay the big bucks for the amsoil?

Another question. After warming the engine and sucking the oil out how can I ensure the ski is level? Should I put a level on the trailer? or is there a better way to level it.

Thanks for the guidance. I think I got a good unit here. very little rust but the speedo wheel is completely gone, I ordered another, not sure how much work that will be to replace, its the whole assembly!

Mark
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Old 02-28-2012, 06:03 PM   #4 (permalink)
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Yea get it good and warm on the hose and suck out the old oil. Just eyeball the level. The way this system works it doesn't have to be absolutely level, since you are just sucking oil out of the oil tank and not the rest of the engine. If you can get 2.5 quarts out you are doing good. I suspect (but have not tested it myself) that you may be able to get a little more out with the nose of the ski slightly down. Try to get your oil extraction hose down the holes in this photo, but be careful on the rectangular holes they have sharp edges that can cut the hose.


I also like Amsoil. I run their 4 stroke marine oil in mine. Be sure to run 10W-40 if you go with Amsoil. As you know Amsoil is more expensive. I've heard good things about Quicksilver marine oil. I'd say anything you find with an FC-W rating will be fine. Of course you cannot go wrong with Yamalube.

Replacing the whole speedo sender unit should not be too hard, except for the wiring. I've replaced the wheel, but never the entire unit. I don't know how the wire attaches to the unit, but hopefully an easy couple of screws. Should be a 5 minute job.
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Old 02-28-2012, 08:25 PM   #5 (permalink)
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What about leveling the ski to check the oil after filling it? I know the best way is to put it in the water but in the case if being on the trailer how do I know that the amount in the engine is correct?

Thanks for all the great advice!
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Old 02-29-2012, 12:18 PM   #6 (permalink)
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Shoot for getting the rub rails close to level, and your OK.
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Old 02-29-2012, 08:41 PM   #7 (permalink)
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I also just purchased a 2004 fx ho, have you put it in the ater yet ? Reason for this ?, I ran mines today for the first time and it only gave me 41 to 45 mph, with a 8000 rpm....
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Old 02-29-2012, 08:45 PM   #8 (permalink)
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I haven't. Gonna shoot for this weekend
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Old 02-29-2012, 08:59 PM   #9 (permalink)
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It Should go faster 41 mph, after reading some of this forum. Im thinking it has to be the spark plugs.. Im going to also give it a tune up.. I had to at least try it today.. I have a ? For you, Do you know the average speed for this jet ski ?
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Old 02-29-2012, 09:06 PM   #10 (permalink)
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I have a 2008 FX140 and it'll go 53 so I would think the HO would be a little faster.
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