What is the wear ring?
The wear ring is a sacrificial piece of nylon/delrin which surrounds the impeller. Its function is to get torn up instead of the impeller. We charge around $185.00 including parts to replace a wear ring only assuming everything else is ok, the impeller cost alone is almost twice that. The symptoms you describe is cavitation, it literally means boiling of the water. In an older unit with the plastic housing allowing cavitation to continue may actually cause the wear ring to melt! The measurement to go by is .0013 (thirteen thousandths) between the wearing and impeller tip. Anything more than that after a new wear ring has been installed means the impeller will need to be replaced as well.
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How do I know if my Mercury boat and Seadoo XP-DI have enough power in the battery?
One thing the DI engine and the 250 HP Mercury Optimax have in common is that they both need good voltage to run. The Mercury uses a belt driven alternator to charge the battery whereas a rectifier/regulator is used on the Seadoo. A neat trick is to keep a cheap voltmeter handy and check the charge rate at the battery on a DI. If it is dropping below 13.2 volts get back to shore before the battery gives out completely.
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I doubt you’ll answer this question but I would like to know why more and more Seadoo dealers won’t work on my older Seadoo but they will work on my new one! What gives?
I will not try to second guess the business practices of another dealer but I can tell you that a lot of "highway dealers" have laid off their most experienced technicians and therefore got rid of the only people who even could work on your boat. Another issue is the fact that virtually no boat manufacturer can afford to stock parts for boats over ten years old. For instance, we tried to purchase a magneto cover for a 1998 GTX yesterday and the part is obsolete. There is no great conspiracy here, it is simple economics and all manufacturers are doing it. Keep in mind these are the worst economic times for boat manufacturers and dealers that have ever existed in our lifetimes. The good news is Seadoo appears to be well managed enough to stay in business during these times unlike every other jet boat manufacturer over the last 15 years except for Yamaha. As far as servicing we have no restrictions on age however we will not work on a Seadoo if it has an aftermarket short block such as SBT. We also do a preliminary diagnosis within 5 days of arrival and typically do not keep boats over 2 to 3 weeks depending on the work required. But thats just us! One other factor that has more of an effect on new boat owners is the warranty reimbursement policy which favors Platinum level dealers like us and penalizes non Platinum "highway dealers" like most are. The bottom line is desperation and lack of talent on the part of some dealers is causing you, the consumer, more inconvenience. The good news is that the marginal or bad dealers tend to go away in this type economic atmosphere. To sum up, bring your boat here, we'll fix it!
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We picked up our boat from our dealer, put it in the water (yes, the drain plugs were in), and discovered a lot of water in the engine area after only a few minutes. The dealer says they have no idea what is wrong.
This is what makes me angry about "highway dealers" not putting boats in the water before a customer ever sees it! A simple water test would have prevented what could have been a catastrophe for you. The leak could be anywhere on the final drive however one thing we have found is the two siphon tubes normally used on a PWC sometimes pop off. Look at the tube locations inside the boat at the top of the drive. There should be a plastic tube connecting the two through hull fittings together. If that isn't it then it is probably on the final drive. Obviously the boat should not be used until it is fixed, bilge pumps may fail and then you are facing a real problem!
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When in neutral with the steering straight ahead the boat creeps ahead slightly. Should I adjust the idle RPM?
The boat is set up correctly and there is no way to reduce the RPM. This engine does not use a stop screw, the idle speed is controlled by many sensors and the throttle body. It may look tempting to try to adjust it, don't! It’s not worth several hundred dollars to make that mistake, is it? One tip on the "shifter", don't think of it as a shifter but a slow speed controller. The handle will work in any position forward or reverse so you should be able to set your speed on your 180 Challenger from about 5 MPH forward to about 3 MPH in reverse without ever touching the throttle. Also, I guess you noticed the steering is reversed while the boat is in reverse. A good tip to remember is "As goes the top of the steering wheel, so goes the bow whether in forward or reverse".
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I’ve been told to get rid of the oil injection system in my 1997 Doo personal watercraft. Should I?
I'm sure there are those who will disagree BUT the oil pump on the 717, 787, and 947 2 stroke engines is a variable rate pump for a reason. At low speeds the typical 20, 25, 40 or 50 to 1 ratio premixed gas causes plugs to foul and at higher RPMs there is probably not enough oil resulting in seizures and burned pistons. Its not as bad in a personal watercraft as it is in a sport boat because sport boats typically idle more or spend more time in mid range. The oiling system is worth it primarily because over time it saves oil, and is cleaner for the environment. If you have a Rotax 2 stroke 717 or 787 engine and idle a lot you might want to switch to a NGK BR7ES plug instead of the BR8ES plug that is recommended for normal use. If you do a disproportionate amount of high speed driving then stick with the BR8ES plugs as they are colder. I am willing to bet that for every "success" story you have heard about switching to premix fuel we can give you 5 horror stories of either excessively fouled plugs or burned pistons. I'm just sayin'
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What is the normal position of the intake grate cleaning thingy on the 180 Challengers?
The ICS system should be closed all of the way, i.e. flush with the bottom of the boat. There is a critical step to perform once you are very that the ICS is fully closed. Find the fuse to it and remove it from the boat! That is all there is to it, you will never have ICS problems again! Also, if the kids get bored, let them push the blue button for something to do without getting in trouble. I don't mean to trivialize the ICS system but Sea Doo stopped putting it on boats because of its unreliability and maintenance issues.
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I have a 2 part question regarding ethanol fuel for Mercury engines, 1) is the fuel safe to use, and 2) will it degrade any components of the fuel system?
Jim, according to Mercury the use of E-10 (10 % ethanol, 90% gasoline) fuel is perfectly acceptable for 1991 and later Mercury jet powered sport boats with plastic tanks made after 1991. There are some precautions to observe when you first start using the ethanol blended fuel known as “summer blend”;
- Your first fill up should be done with about one quarter tank of fuel still remaining.
- If you suspect there is water in the fuel tank the water must be removed. We would like to tell you that it is a simple test however after exhaustive research we can’t find anyone that sells a testing kit for water in the fuel! Water can build up in a fuel tank if it was stored with less than a full tank over several months, you have purchased fuel from a questionable supply location, or you didn’t change the fuel filter on a regular basis.
- It is a good idea to replace the fuel filter and to have a spare on the boat initially just in case! The filter can be purchased from any Mercury Marine dealer.
At the end of the season either drain the fuel tank completely OR make sure it is COMPLETELY full AND has gasoline stabilizer added. Adding the stabilizer is a normal part of the Kingsland Marine “end of season annual maintenance”. Use good judgment when buying the fuel, keeping the tank filled, and storage procedures and your Mercury power plant will reward you with years of dependable service.
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My husband wants to know what we have to do to get our Sugar Sand Oasis ready for the 2006 season. Our local dealer told us we need to bring it in for what they called “de-winterization”. What is that?
Joan, since you had your boat winterized with us all you have to do is charge the battery, reconnect the positive battery lead and go have fun! We made sure your oil reservoir and fuel tank were full. We also added gasoline stabilizer and changed the final drive oil as well as added environmentally safe anti-freeze to the engine or engine exhaust and intercooler. If you didn’t see us last fall then check your fuel, oil, final drive oil, and the battery. Make sure all are full or fully charged. Remember that you use Quicksilver DI oil specially formulated for the Optimax engine. The other Mercury engines use Quicksilver Premium Plus. For Sea Doo owners all of the same rules apply except that the DI and RFI two stroke engines require XP-S synthetic oil whereas the non fuel injected engines require XP-S mineral oil. The four stroke Sea Doo engines use 10W-40 mineral oil for the 185 HP supercharged or the 215 HP supercharged intercooled engines. The 130 HP and 155 HP engines can use either 10W-40 mineral or 5W-40 synthetic oils. Sea Doo PWC or jet boat owners that didn’t have us winterize the boat should change either the jet pump oil (two strokes) or the final drive grease (four strokes) as well. If we did your annual maintenance then all that would have been done! At the risk of offending other dealers there is no need to de-winterize a boat IF it was properly prepared for winter storage.
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I used my 2005 Sea Doo Challenger 180 a few weekends ago. The battery was very low by the next weekend. What caused the battery to go down?
Mark, we have to be careful not to diagnose problems without seeing the boat first however there are two things that seem to occur most often. The reason that happens the most often is that you forgot to turn the battery switch to the off position. Your boat has a Clarion radio, it draws two tenths amphours even with the radio off! For ANY radio equipped 2005 or 2006 Sea Doo jet boat you MUST turn the battery switch to the OFF position. For 2004 or earlier Sea Doo jet boats with the JBL or Seaworthy radios the radio does not draw that amperage. It is still a good idea to turn the battery switch to the off position. For Sugar Sand owners the same thing applies, get into the habit of turning the battery switch to the off position if your boat is so equipped.
The second usual cause is the bilge pump is working because rain water is somehow getting into the bilge. Remember that the bilge pump is automatic and will operate even if the battery switch is off in either Sea Doo or Sugar Sand jet boats. Remove the drain plugs after the boat is on the trailer to prevent excessive operation of the bilge pump. Don’t forget to put them back in before the next launching!
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What precautions if any do we need to take with the new Ethanol blend fuel?
Pam, the fuel you are mentioning is sometimes called “summer blend”. Although the owner’s manual specifically mentions NOT using alcohol, methanol, or naphtha blended fuels there is no mention of the 10% ethanol blend being forbidden. As with any fuel make sure the fuel tank is free of water, dirt, or any other foreign substances. Also be sure to use the recommended fuels for your engine. For the USA Sea Doo recommends 87 octane regular unleaded fuel for the normally aspirated engines and 93 octane premium unleaded fuel for the supercharged or supercharged intercooled engines.
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What type of oil should I use in my 1997 GTX?
Don, we recommend using Sea Doo oil only so here goes; all carbureted Sea Doo engines are deigned to run on either Sea Doo XP-S mineral oil or XP-S synthetic oil. The RFI and DI engines MUST use Sea Doo XP-S synthetic oil ONLY. For Mercury powered sport boats use Quicksilver Premium Plus in the 210 HP carbureted or 240 HP EFI engines. The 200 HP or 250 HP Optimax engines MUST use Quicksilver Optimax DI oil. For four stroke engines the 130 HP or 155 HP engines can use either 10W-40 mineral oil or 5W-40 synthetic oil. The 185 HP supercharged and 215 HP supercharged intercooled engines require 10W-40 mineral oil ONLY. DO NOT use synthetic oil in any supercharged or supercharged intercooled engines. Remember to follow the directions in the owner’s manual for checking oil in your four stroke engine.
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I’d like to get a key made for my 2003 GTX. My local dealer told me I had to bring the machine to the dealer to have a key made!
Nick, your dealer is correct, all Sea Doo models except the Mercury powered sport boats use the D.E.S.S. ignition. The computer on board the boat is “taught” to accept the key. It’s a good idea to make sure YOUR name is programmed into the computer. That way identification is much easier should the machine be stolen. This system was initially used starting in the mid 90s and is still used on Sea Doo personal watercraft and jet boats for 2006.
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