The pistons in a scooter Engine are a typical source of compression problems.
Motor Runs Rough
It is also possible that the motor will start, but you have to crank the motor repeatedly and you cannot predict when it will finally start, if at all. Once the motor starts, it runs unevenly. Nevertheless all of these problems consent a infrequent telltale signs that something is fluffed and that low compression may be the account.Motor Will Not Start
Sometimes the compression falls so low that the Engine simply Testament not embarkation. This symptom does not automatically close that low compression is the culprit. The headache could be something as easy as an empty Gauze container or a Glimmer plug wire that has incline disconnected. When faced with any symptom, it is bad to eliminate all of the simplest credible causes ahead before assuming the worst. It too things if the Engine makes any crack to begin; obviously, a completely dead Engine has a potentially worse hot potato -- such as seized parts inside the Engine -- than one that tries to Eccentric person. Provided a compression count is concern your scooter from starting, it could be a as well expensive repair.
Many problems can creator low compression in your scooter's Engine. Some of them are internal -- approximative damaging rings -- and can particular be institute by disassembling the Engine. Others are visible from out the Engine -- approximative a loose Glimmer plug -- and can be get going by simply giving it a congenial physical inspection.
You "give it the gas" but it does not rev smoothly. While low compression can often be an expensive problem, the fact that the motor runs is encouraging. Compression is best tested while the motor is warm and running, so a possible compression problem is likely to be less serious -- still expensive perhaps, but maybe less than a complete engine rebuild. The problem is more likely to be something simple like a gasket that has gone bad when the motor can run.
Motor Has No Power
Your scooter may start and even idle reasonably well, but once you start to accelerate, all bets are off. Sometimes it accelerates slowly, struggling to receive up to speed; at other times it may start well enough but quickly lose power and slow to a crawl. Hill-climbing may become impossible; you may even have to help your scooter on mild inclines. While this is a frequent symptom of compression problems, it may also be a symptom of clutch or chain problems. Again, it is best to check these simpler (and potentially less expensive) problems before assuming you have low compression.
Burning Oil
One of the most common traditional symptoms of low compression is the smell -- and possibly smoke -- of burning oil coming out of your exhaust. If this symptom shows up in conjunction with one of the other symptoms, a compression check is definitely in order.
