I can start it and rev it up fine (for a short period, of course). However, as soon as it gets in the water, it will barely run – it will start and sputter and you cannot get it to run more than a few seconds or rev up. Take it back out, let it dry, starts & revs fine. It is not getting any water in the casing that I can tell, its almost as if water is getting something wet through the cooling system that I cannot see?
XL700Z Waverunner

Experienced athletes share their insights in answering this question:
Try cleaning the carbs and the fuel lines, filter

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There could be several reasons why a WaveRunner is not starting. The simplest and most common fault is when the shut-off clip is not properly attached or the tank is empty. Other common reasons could be electrical issues like malfunctions with the battery, spark plugs, fuses, or wires.
Bogging is caused when too much fuel is delivered from the carburetor to the motor. When this happens, less air gets pushed through, and the engine struggles to come to full power. It may feel like you are plowing water, or like the jet ski is failing to get enough speed to come up above water`s surface.
Spark plugs are often the problem if your jet ski engine turns over, but doesn`t start, especially if you have a 2-stroke jet ski. Take the spark plugs out and examine them to see whether they`re wet or dry. If they`re dry and light brown in color, you have the correct fueling.
You can start a WaveRunner out of the water without any damage, but the manufacturer recommends that you don`t run the engine over 4,000 rpm! If you can`t attach a hose to the flushing port, you can run a WaveRunner for only 15 seconds, but by supplying water, it can be run much longer.
Jet ski batteries are usually 12 volts, but a fully charged jet ski battery should read above 12.6 volts (12.7-13+ volts). As a rule of thumb, you need at least 12-12.5 volts to start a jet ski, but it always depends on the model and some external factors.
In the event you have a completely dead battery do NOT attempt to jump-start the battery with your car battery or even a jump pack. This can cause extensive damage to your jet ski`s electrical system and is not recommended.
This is because a poorly maintained and serviced engine and other parts wear out much sooner. Every owner`s manual strictly outlines required service intervals. Beyond regular service, jet skis need to be winterized in most cases. Additionally, every owner should carefully check their skis before and after rides!
Top speed not being achieved

Another problem might be that the speed mode might have been changed from sports/normal into ECO mode. Impeller or A worn wear ring may cause cavitation and top end speed. Be certain if this is the cause to replace these. In the end, check the gate is fully in the position.

Jet skis can be ridden in the rain since they are designed for running in a wet environment. These machines even tolerate being flipped over in the water, so rain doesn`t damage them at all. On the other hand, rain can be unpleasant or even painful for the rider and may cause poor visibility.
Whether you`re looking to buy a new Jet Ski and wondering how long it`ll last or deciding if it`s worthwhile to purchase a used one, generally speaking a 2-stroke engine lasts around 200-300 hours, while a 4-stroke should last around 300-500 hours.
If you do run your WaveRunner out of the water without proper water supply, it should be for only fifteen seconds maximum. If the jet ski is not in the water or getting a proper supply of water, the engine and exhaust are at high risk of overheating.
Generally speaking, the average PWC can go around 60-120 miles on a tank of gas, and the average PWC uses 3-4 gallons of gas per hour.
In general, a jet ski can go somewhere from 75-150 miles on a tank of gas. Again, these numbers could vary widely depending on several factors like the jet ski`s performance, curb weight, fuel capacity, or the weather conditions.
A flipped PWC won`t sink because its hull is designed to float even if it takes on water. There could be potential damage to the vessel if certain parts become and then stay flooded though.
A Yamaha WaveRunner can go as fast as 50 – 67 mph depending on the model. The entry-level EX WaveRunners offer around 50 mph top speed, while you can hit an amazing 67 mph with the flagship Yamaha WaveRunners. What is the fastest Yamaha WaveRunner?
In a nutshell, the main reasons why Yamaha WaveRunners are so reliable are as follows: WaveRunners feature the largest engines in each PWC category. They come with lower compression and less cc/HP ratios than competitor models. These engines are simpler, easier to work on, and not so picky about engine oil.
The Yamaha FX Cruiser model is the fastest and most powerful jet ski on the market for the 2023 season.
The motor works hard to suck water into the vent at the bottom of the machine, and propel it from the back. Some of that water is used to cool down the motor so the watercraft does not overheat. Once the water has completed its cooling duties, it is expelled out the back of the vehicle in a neat water plume.
If you`re jetskiing, barefoot is your best option. A jet ski rental will require you to board from a floating dock. If the bottom is not sandy, water shoes may be an option. Water shoes are a good option if you jetski where the bottom is not pleasant to walk on.
Because of this concern, manufacturers recommend that you not operate a jet ski in water shallower than 3 feet. As jet skis don`t have props like boats, they can run in shallower water of course. But keeping safety in mind, you should never operate the engine in water that is less than 3 feet deep.
Jet ski batteries typically last between three and five years. However, if the battery has been damaged, the lifespan may be significantly reduced.
Because they sit on top of the water, jet skis have a natural propensity to turn over in the water.
Jet skis can go pretty fast, usually 40 mph to 70 mph, depending on how calm the water is, the amount of wind resistance, and the weight of the passengers.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Yamaha waverunner My 800xl will run, but will not get up to speed. When you first give it throttle it will take off fine, at first, then its as though some sensor holds it back. It begins idling rough if not shut off. Let it site for a minute and it will restart and do the same thing. Or it will let you idle back to short. But get into throttle and it bogs down. I’m thinking some sensor has identified a problem and holding it back to keep it from, I don’t know “Burning up”.
Any One have any idea’s. On tight bugget but still want to play.

Thanks for Any Help

ANSWER : Well if you have no money to fix it then no use figuring out what is wrong. Sorry but repairs take money, I am sure this is at least a $200-$400 USD repair job. Check your fuel pressure first.

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I have a 99 yamaha f100 four stroke outboard. Problem I have is boat will acclereate fine get up on plane and after running for about a mob at wot will decell and only run around 4500 rpm. Then after coming back to idle will have a slight miss then run smooth and repeat every run. Changed the plugs and fuel filters alll oe yamaha has fresh oil timing belt is good any ideas will help or fuel psi spec. I am an ase master automotive tech so I know alot about engs. To me it feels like it’s running out of gas. Like the carb bows are full when I take off but then runs out after running wot. Any info will help
ANSWER : I have exactly the same problem with my Yamaha F100, have you got any solutions yet?

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Yamaha waverunner I acquired a yamaha waverunner that has been sitting for 8 years. i finally got it to start and after letting it run dry for about 20-30 seconds…oil and water began running out of the rear below the propulsion outlet and under the rear deck..the motor compartment is free of any oil or damage and the engine still starts. Any idea on the damage or what should I do at this point?
ANSWER : Check for corrosion of the engine as leaving it for long any water left in the system will cause problems.

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I have a volvo penta md7a marine diesel engine fitted in my sailing boat. Recently, I changed the bottom sea **** which was almost blocked. Apparently the new sea **** is working well as it should. But this week with no apparent reason and without use of engine, I noticed that the cooling system water cup (the recipient which connects with the sea **** hose and the water pump hose) is empty and it Im not able to keep it full like it was before.The water vanishes every time I tried to fill it up in order to keep the water running throught the system. However the waterpump seems to be working. But almost no water is coming out of the exhaustor, of course, just a few drops once in a while. What might be going on ?? Thanks.
ANSWER : I don’t have a picture of the installation, but I can imagine a water filter above the water line with an improperly fitted cover and an air leak that lets the seawater drain out – losing the prime. Old Swampy in New Hampshire

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The Bike Technicians Tactic Phase1 An electrical inspection on the bike should produce results. First, the bike battery powers the entire lightening systems mentionable as ignition, meter readings, head lamps, signal indicators. However, the battery provides the power supply to several entities though also significant is the fuse box containing circuit protection coils. Inserting the bike key into the ignition to perform start mode displays the capacity power circuits. A charged battery should display an indication in the meter reading area also known as bike dashboard grading. A malfunctioning start mode on inserting key in ignition may be traceable several locations on the electrical circuits. Attempting to repair the electrical power of the bike usually requires batter power power test kit. The test kit ascertains the battery power making possible progress to the remaining electrical circuits. Test kit also ascertains the fuse box circuit functionality either with fuses still intact or extracted allowing for the next progress level. An observation tour of the bikes electrical wiring kits from battery hold through fuse box compartments to each lightening display area either headlamps, indicators, and meter reading should produce results of any visible damages that may require repairs after the electrical inspection has been performed. Once any faults were observed on the electrical channels, repair mode is the next level. A dull battery either may have been depleted completely of durational capacity requiring another for replacement. Alternately, a depleted power supply due to prolonged storage may require charge functionalities. Usually, a device capacapble of restoring a battery of electrolytes is resorted for charger ability. The type of battery may require constuents either liquid cathode replenishment in the battery entrapment area prior to charging feature is assumed with electrolyte machine. Once the battery has regained full functionality makes way the next repair task. The fuse box may have simply required replacement fuses either as missing or burnt out. A fuse box usually contains additional spare for replacement functionalities. An alternate arrangement at acquiring fuses on the auto mart may replace the burnt devices. The next electrical task is wiring fixtures achievable by mending broken cords with appropriate electrician’s tapes else malfunctions may remain. Alternately, a worn-out electrical wire is replaceable by acquiring the entire extension lengthwise between significant areas. The last remaining electrical units are lightening indicators consisting of bulbs or luminescent displays reflectors. Observe the blub areas either by loosening covers to inspect for observable burnouts else the entire electrical circuitry is ready for functionality observations with separate entities. Engine Technicians Tactic PHASE 2 A bike engine inspection includes observation for indications of malfunction. Any fluid residue is indication of problem areas. Where oil leaks usually requires engine block inspections. A bike engine consists of an entrapment compartment where mechanical combustion takes place. First, the entire observable block consists of an external coating known as engine bloc housing internal component of pistons, rings, and fastens known as cylinder heads. A bike engine has every component embedded within requiring technical expertise to achieve an inspection. Once deciding on the engine task requirements, acquire a tool box with the appropriate componements as first requirement before engine works is commence able. Second, the bike may require an area environment as workshop requirement to attain engine inspections. Third, bike engine are least bulky compared with vehicle engines however assistance would complement the inspection phase. Prior to inspecting the bike engine, a strap mechanism has to be assumed to achieve expert maneuverability also as safe precaution. Unless parts hinder maneuverability at engine locations, the only removable components should be the engine. First, start with disjointing the spark plug cables to acquire accessibility to plugs imbedded on the cylinder heads. The plugs require tools to loosen thereby exposing the combustible area. Once the spark plugs are exposed, two alternatives are likely. First, a spark plug may have gathered rust residue only requiring cleaning to attain regular capacity. The pin area of the spark plug may have been twisted due to overheating and slight melting dislocation. Usually cleaning the residue from old plugs may simply expose the ignitable capacities. However, an observation of twisted plug pin may require twisting back in place to achieve full ignitability once bike engine starts. A bike engine bloc has the pistons as combustibles or blasters of fuel gasoline. The rings perform as strap fasteners whenever the pistons move about combustibility. Usually, the engine entrapment components would have collected residue requiring clearing. Also, pistons together with rings may require replacements either as worn-out due to prolongs tasks or overexerted biker features.
ANSWER : Get to the manufacturer

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Caravan water heater not letting hot water through
ANSWER : Pipes are rusted and cloggen from the inside of them

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HI!
I continually get code 90 (low/NO flow) from my 8111. I have disassembled, cleaned EVERYTHING, including the inlet port AT the pump (remind everybody to check this as stuff gets past the filter basket and will plug the pump inlet).

There is No air in the system and I get superb pressure at the outlet, yet I still get code 90. I again removed the flow sensor and put my ohm meter across the flow sensor terminals and activated the flapper and measured an open circuit. I used a heavier magnet to see if I could get make the internals of the sensor move to get an ohm reading, but I get nothing but an open circuit, ie: no measured resistance.

Can I simply bypass the defective flow sensor to trick the 8111 to think it has full flow without damaging the ‘brain’ of the system.?

Intex corp is useless at these questions. They have been out of stock on this sensor for months and are telling me “two weeks” for two months and now it’s “end of August” which I do not believe. Meanwhile I am making no chlorine while the 90 code is showing.

I love the 8111, this is the first problem I’ve had with it, and I’m frustrated that I can not get such an important part from them.

Thanks for listening!

ANSWER : Have you been able to find a solution to this problem. I am having the same issue.

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