It can be disheartening to turn on your jet ski and find that you\u2019ve got a locked motor. With the high costs of professional jet ski repairs and the complexity of engine mechanics, it is easy to feel defeated in this situation. Fortunately, there are some practical approaches to diagnose and fix your locked motor at home with basic tools that you can find in just about every household. \n\n\n\nTo fix your locked jet ski motor, you will need to remove the engine\u2019s spark plugs, lubricate the cylinders, apply gentle force to each cylinder, and potentially apply additional force to the mid-sized cylinder to release the engine if it initially doesn\u2019t take. \n\n\n\nTo make the procedure of unlocking your jet ski motor as easy and stress-free as possible, we are going to walk you through every step of the process. Keep reading to learn how to unlock your jet ski motor so that you can get yourself back on the water. \n\n\n\nDiagnosing a Locked Jet Ski Motor\n\n\n\nBefore assuming the state of your jet ski\u2019s motor when it doesn\u2019t turn on, you need to diagnose what the actual issue is and whether a locked motor is behind the problem.\n\n\n\nWatch this gentlemen's overview of the symptoms he was seeing and then we will get back into what needs to be done.\n\n\n\n\nhttps:\/\/youtu.be\/Re29E_IF25w\n\n\n\n\nIf your engine creates a loud cranking sound as you try to start your jet ski, it is most likely because your starter is hitting your flywheel due to lack of lubrication, which is the first sign of a locked motor. Additionally, if the engine does not start, but the electrical components work, you are also likely dealing with a locked motor.\n\n\n\nIf this is the case, you\u2019ll want to look at your engine\u2019s spark plugs and cylinders next to confirm if locking is the issue, which we\u2019ll cover how to do below.\u00a0\n\n\n\nNote: Do not attempt to try to start your jet ski again, as this could lead to additional issues\u2014especially if the motor is actually seized. \n\n\n\nHow to Fix a Locked Jet Ski Motor\n\n\n\nAt this point, it has become clear that the probable reason your motor won\u2019t start is it\u2019s locked and will need some repairs. To successfully do so, you will need some tools that you likely have lying around your house.The following tools will be necessary to complete the repairs of your jet ski\u2019s locked motor:\n\n\n\nLong screwdriver (or another similarly shaped metal instrument)Socket wrench\u00a0Spark plug socketVice gripsHammerPB Blast or some other type of penetrating oil\u00a0\n\n\n\nOnce you have all of your tools handy, you can begin repairing your engine. The procedure for this is very similar across all jet ski brands and manufacturers but differs slightly depending on whether your motor is turbocharged or supercharged (more on that later).\u00a0\n\n\n\nThe following steps will take you through the procedure of fixing your jet ski\u2019s locked motor:\n\n\n\nRemove the Motor\u2019s Spark Plugs\n\n\n\nRegardless of the motor type of your jet ski, to begin your repairs, you will need to remove your spark plugs. \n\n\n\nUsing your socket wrench and spark plug sockets, remove the plugs. If you find that they are difficult to pry out of place, spray them with some of your PB Blast to loosen their hold. Note: You may need to take out the interior coils of the spark plugs as well. \n\n\n\nMove the Cylinders\n\n\n\nFor this next step, you will need to reach your jet ski\u2019s drive shaft\u2014for which you will need to utilize your screwdriver and vice grips.\n\n\n\nBelow is a breakdown of the steps you\u2019ll need to take to move the cylinders on a turbocharged jet ski motor versus a supercharged motor.\u00a0Just to get you familiar with the process, though, this video from YouTube outlines some of the steps involved:\n\n\n\n\nhttps:\/\/youtu.be\/sZXr40wRU2E\n\n\n\n\nTurbocharged Jet Ski Motor\n\n\n\nAfter successfully removing your spark plugs, take your long screwdriver and insert it inside each cylinder. You want to make contact with your motor\u2019s driveshaft and attempt to create movement in each cylinder.\n\n\n\nYou will find that the screwdriver will likely not go in even for each cylinder, with one having an especially small depth. Don\u2019t worry\u2014this is not a symptom of a seized motor or any other engine issue; it is simply due to your cylinders' different angled positions. \n\n\n\nUsing your vice grips, connect to the driveshaft of your jet ski and give it a turn. As you turn the driveshaft, observe the cylinder, and look for movement on the screwdriver of each allocated cylinder. If there is no movement, this will be the telltale sign that your motor is locked and will need additional repairs.\n\n\n\nSupercharged Jet Ski Motor\n\n\n\nTo achieve the same result with a supercharged jet ski motor, you will need to remove the hose from the front of the engine fan.\n\n\n\nTo do so, you will first need to remove the hose clamps and then unfasten the fan's grommet to have access to the driveshaft. Once you have successfully unfastened the grommet, attach your vice grips to the shaft and look for the same movement of the screwdriver. \n\n\n\nIf you happen to find movement in one cylinder and not another, your jet ski likely doesn\u2019t have a locked motor but rather a broken connecting rod. \n\n\n\nLubricate the Cylinders\n\n\n\nWhat you want to do next is lubricate the interior of each cylinder. You can use your PB Blast or some other lubricating alternative for this purpose.\u00a0\n\n\n\nOnce you have coted each cylinder with lubricant, let it sit for about 24 hours to ensure that the lubricant does its job.\n\n\n\nAfter you have waited for 24 hours, give each cylinder another spray of the lubricant. Then insert your long screwdriver into each cylinder and push down or lightly tap the top of the screwdriver with a hammer. Be careful not to add too much force, as this could potentially damage your pistons and create further problems for your jet ski\u2019s motor. \n\n\n\nFrom here, the problem may be resolved, but if this fix did not get the job done, there is an additional step you can take to unlock your jet ski\u2019s motor. \n\n\n\nRelease Your Locked Motor\n\n\n\nTo continue fixing your jet ski\u2019s locked motor, you must first assess the cylinders to designate which one will be best for releasing the motor. To do so, take your screwdriver and find which cylinder out of the three has a mid-sized depth.\n\n\n\nEven if your screwdriver easily reaches the bottom of the deepest cylinder, you should avoid using it to release your motor, as this increases the risk of damaging your piston. In contrast, if you try this procedure on the cylinder with the least depth, you will not have enough force to release the locked motor. \n\n\n\nNext, you want to take your hammer and use it to tap your screwdriver\u2019s handle to attempt to release the motor. To prevent further damage to your jet ski, strike gently and gradually; you want to use just the right amount of force to release the locked engine. As you continue this process, you will eventually find the locked motor's sweet spot and successfully release it.\n\n\n\nIn Conclusion \n\n\n\nHaving engine issues like a locked motor with your jet ski is never fun, but it doesn\u2019t mean you have to break the bank at a repair shop or be a professional mechanic to get your watercraft up and running.Using your basic household tools, you can remove your jet ski motor\u2019s spark plugs and lubricate the cylinders. If you apply enough gentle force to each cylinder, you may be able to release the engine and get back on the water by the next day!