Sport & Outdoor – Others

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Hi.Unfortunately there is no online service manual or diagram available for free download. You can purchase the service manual with the full replacement procedure for a small fee using the link belowMariner Outboard Shop Manual 75-275 HP Two-Stroke, 1994-1997

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Turn the engine off and check for anything, such as weeds or trash, which may be blocking the water intake. If a foreign object is present, remove it and restart the engine after it has returned to normal temperature. In most outboard motors, the water output is a small tube-like structure that can easily get blocked.
Outboard water pumps are simple designs. Located just atop the lower gearcase assembly, they`re easy to access and service, too. The pump houses a rubber impeller that`s keyed to the engine driveshaft. Water enters the lower gearcase through inlets on the sides of the gearcase, just above the propeller shaft area.
How to Tell if Your Impeller is Bad. If your boat overheats it could be a sign that your raw water pump isn`t working. One of the first things you should check is the impeller inside the pump. If the impeller is cracked, melted or the vanes have lost their flexibility then it`s time to replace it.
Rattling Noise

A rattling noise means one of two issues: Bad bearings. Bent or Broken impeller shaft.

If your impeller fails, the pump can`t pump cool water to the engine causing your engine to overheat. If you catch that your impeller is failing early on, you might avoid major problems. However, if you`re not fortunate enough to catch a bad impeller, the results can be catastrophic to your engine.
If your impeller fails, the water pump cannot pull in water, and your engine will overheat – and potentially leave you stranded far from shore, adrift with no power.
An impeller pulls water into the engine to help cool it. A propeller pushes the boat through the water. A propeller is a type of fan that is used to move a fluid. They are often used in boats and other vehicles including submarines and aircraft.
Changing an impeller is not a daunting task and it`s one that every boater should consider adding to their arsenal of DIY maintenance. Changing an impeller, on many engines, usually takes less than 20 minutes even if you are fairly slow. The most complicated aspect of the task is physical access to the pump.
The impeller, on the opposite side to the eye, is connected through a drive shaft to a motor and rotated at high speed (typically 500-5000rpm). The rotational motion of the impeller accelerates the fluid out through the impeller vanes into the pump casing.
Impeller Balancing involves adjusting the impeller that zeros out unbalance and eccentricity. To balance a single plane imbalance, weight needs to be evenly distributed. In a two plane unbalance (also known as couple unbalance) it is corrected by adding two correction weights equidistant from each other.
The water pump is one of the vehicle components that may never require replacement if your vehicle is well-taken care of. You can own a car for over 15 years and never have to replace the water pump. That`s not to say that it can`t develop a problem.
If the impeller is not spinning at all, make sure the unit is turned off and try manually spinning it with a tool, such as a screwdriver or a pen. If you are unable to manually spin the impeller, the part will need to be replaced. A pump impeller may cease to spin after not being in use for a period of time.
The curling of the impeller blades will reduce the amount of water that is pumped. If the water pump impeller is not pumping enough water, the motor will overheat.
Once water starts flowing through, this will lubricate them. Some manufacturers claim that oil based grease is bad for the rubber or other material of which the impeller is made and suggest using something like a dishwashing soap or other proprietary lubricant. Others say that oil based grease is fine.
To summarize: If an impeller wears out or gets plugged, flow drops, pressure drops, efficiency drops and power drops. Or in essence, everything drops. Keep up the good work, and keep on pumping!
“Impellers can fail for a number of reasons,” says Wilson. “They are hard working parts and can simply wear out. They can also be damaged if they are run dry or if they have sat too long without running. We also see situtaions where the wrong impeller has been fitted, worked for a while and then failed.”
Tests prove that Globe`s Run-Dry® impellers outperform standard neoprene or rubber impellers and are guaranteed to run-dry for up to 15 minutes.
If the impeller runs backwards, the liquid is still discharged from the pump. This is due to centrifugal forces that move the fluid in the normal direction. Put simply, the flow doesn`t reverse, making reverse rotation hard to detect.
Impeller Damage

As is the case for the housing of your pump, the impeller is susceptible to damage done by excessive heat during use. Dry running your pump causes friction, and this friction is strong enough to heat up the impeller, causing it to melt.

Casing: A casing can be explained as a shell, cover or a housing which protects and supports most of the components. In pumps, the casing is basically used to seal it to prevent leakage and sometimes retain pressure.
A closed impeller is the most efficient form and is ideal for handling clean liquids with low viscosity. Consisting of two plates (known as shrouds) either side of the impeller vanes and a boss, extending from the front shroud into the pump suction to guide the liquid into the impeller eye.
There are 10 types of impeller each having different advantages and disadvantages depending on the application.
Pros of an Impeller

The main advantage is that they are usually more energy-efficient. They use less water over a shorter period of time. An impeller is gentler on clothes. A washing machine with an impeller has a large capacity and can easily accommodate bulky items.

The size of vessel used for mixing will determine the diameter of the impeller. A general rule of thumb for axial or radial flow patterns is the diameter of the impeller be ⅓ of the vessel`s diameter, so a 10 cm beaker would require approximately 3 cm impeller.

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25 HP 2 cycle Yamaha Outboard.Need to see the diagram of washers and spacers for replacing the propeller. specifically, what goes between the back of the propeller and the motor. Prop fell off in the water and everything is missing but the prop which I found. Motor about 20 years old. If you have any diagrams from 2 yrs or older send it. Motors havent changed much.

I have got some diagrams for the older Yamaha’s. Please send an e-mail to adam.peake (at) and I will send you the lower unit breakdown.

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I have the Intex Sand/Pump pool filter Model SF 20110. It’s been running real great for the last 4 months. However recently it has been tripping the internal overloads and I have found the pump motor to be very hot when I put my hand against it. I have tried several different solutions, such as a level ground platform that was clear of any obstructions, made sure that the motor vents under the motor was clear of anything that would prevent air flow. I used a non electrical type of lubricate on the impeller. When I would turn on the pump the rotor would not turn but only would hum very loudly and then slowly begin to turn. I also noticed that the motor’s rotor shaft would not turn to freely due the tightness around the rotor’s shaft. After using the lubricate the shaft would turn a little easier. I used an amp meter on the incoming voltage line and the motor would run at 4.5 amp. And yet it still overheated and tripped the motor overloads. I can only think that the motor is still not getting enough ventilation. I have check and cleared all the incoming lines and found nothing block the pumps input or output lines. Any suggestion?
ANSWER : I just looking into this issue my self. The pump cools itself by a internal fan, which is run by the motor. Well I took the housing cover off to find out all the fan blades have broken off and were setting in the base of the pump. Once you remove the fan blades from covering the air intake, it might be fine. I will find out my self once summer gets here.

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I have a York Stellar model mid efficiency furnace Model # P?UCD12N07601A, Serial # EXAM3600524 installed in 1992. The HSI was replaced approximately 3 months ago. Over the last two weeks the ventor motor comes on, the HSI lights but does not ignite the gas. The ventor motor runns continously and the HSI continues to turn off and on without gas ignition. Some times by turning the ventor motor off and on (by opening and closing the bottom furnace faces panel door) will give be ignition after the HSI goes through 1-4 cycles. If I can’t get it to work I call my furnace repair guy. The serviceman thought it was the pressure switch and ordered one. Just this last weekend I had no heat and another service guy came in replaced the HSI again and adjusted the pressure switch and said this fix should work. Less than a day later furnace still experiencing the same problem-Ventor motor comes on, HSI comes on but no gas ignition. ventor motor runs continuously and the temperature in the house drops! I’m frustrated and the servicemen don’t seem to know how to fix the problem for good.
ANSWER : Make sure the vent pipes that exhaust the fumes are not blocked in any way and also check the drain line to be sure it is not kinked from the vent motor to the trap. Take the hoses off the vent motor and the pressure switch and make sure all the hoses are clean and free from debris also check the trap on the drain hose and make sure it has water in it if it doesn’t this will creat a negative pressure in the vent motor housing not allowing the vent pressure switch to make.

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My swimming pool. I have just had my fifth IC 40 Intellichlor chlorine generator installed in 4 years at a cost of over $900 today. Each one has worked for no more than 8 months. The first three were replaces under three year warranty, the fourth by a factory rep and I bought the fifth today. The first three all failed with Flow Chk PCB error message. The fourth just stopped working on Sunday, no power or lights. A local Pentair warranty person, whom I paid a Service Call, unplugged the unit, opened the small power center cover, showed me the green light indicating that there was power, plugged in a new IC 40 which worked immediately (as did the other four). I asked if I should replace the power center and he said that it’s basically just a transformer and is working fine. We do get occasional power blips that make the clocks on microwaves, etc blink, but I thought that the power center essentially isolates the cell from these. I do have a Florida Power and Light surge protector on the electrical box that brings power into the house. I have now talked to the pool builder, two Pentair warranty repairmen and one factory rep. I am at a loss. They all tell me they have no idea why these units fail after less than a year. This last IC 40 was installed 3/24/2010, version 2.0 and now failed in less than 5 months. Should I replace the power center that the IC 40 plugs into. Any other suggestions. I have been told that this is the best chlorinator. I don’t want to keep replacing units. By the way, each unit had been spotless inside. I keep the water chemicals and salt levels at ideal levels. The units have never worked long enough to get dirty inside. The power center is connected to an Intellitouch control system outside with an indoor control panel. Last time I called Pentair North Carolina and got some smart alec tech person that had no suggestions. Please Help if you can.
ANSWER : I’ve had the same experiance. On my fifth one as well. Fail every year. No idea why.

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I have purchased three 750-watt power inverters in the last three weeks. They have all failed to work on the second or third use. The first two were the same brand. I replaced an old one that ran for several years. I am using it to run a 4.7 amp 120-volt vacuum cleaner motor that pumps up my air dock. I have it connected directly with marine cable to one of the boat batteries. The battery outputs about 12.8 volts DC. The fuses don?t blow, just No Output. I am using a three-wire 120-volt extension cord and am, wired neutral, hot and ground to the AC motor vial an on/off switch. The motor works fine when I run house power with an extension cord from the dock next to me. Could I be, just unlucky with new inverters and need to buy a forth one?
ANSWER : The problem may be that the inverter is undersized for the load. Is the 4.7 Amp rating the motor peak draw or the nominal one. What I mean is that it takes many times more power to start start the motor than when the motor is running. Typically it is 3 to 7 times more amps to start the motor than when it is running. It could be that starting the vacumm cleaner is stressing the inverter and it is causing it to fail prematurely. If you can find out the locked rotor current draw of the motor, the that would be the mininum size of the inverter.

Also, the type of inverter will make a difference on how the motor operates. A modified sine wave will make the motor run hotter than a pure sine wave inverter. Hope this helps.

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My daughter has a sweet pea scooter that had been blowing fuses and the motor got hot. Im sure the motor is shot. but my question is can anyone tell me if the motor would be the only thing I need to c
ANSWER : Find out whether it is 6 volts or 12 volts and there should be two wires that feed the motor either cut or splice and attach another set of wires with fuse in the line (simular to jumper cables) raise the back tire so it does not touch the ground and place jump wires to the negative and positive of the battery.If the motor moves in either direction without blowing the fuse the motor is good if not then its bad. Uses the same amperage fuse

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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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