Break-in
Take time for the engine break-in. Do not skip this important stage for its longevity. The time you will spend for your FX 12 break-in will insure its longevity and better performances.
Avoid too fast driving during the break-in period. An excessive speed is the first cause of a bad break-in. Be sure of the good quality of your fuel. We recommend the JP FUEL for your engine. A low-quality fuel makes the engine overheat and leads to a premature wear of its spare parts.
During the break-in period, it is very important to have a good air filter and not to let the dust penetrate into the engine.
During the break-in period the engine has to have a rich settled carburation (main needle). This regulation is compulsory for a perfect lubrication of the engine parts which are new and very adjusted for a maximal later performance. After a short period of slow motion functioning with a stable and not too high r.p.m, you can push gases and make straight lines or racing circuit tours to begin the engine break-in.
It's important to make sure that when the gas handle is in full speed, the engine could not take all its tours but approximately the half. To obtain this adjustment, it is necessary to open the main needle of about single tour with regard to the initial adjustment without touching the pick-up screw. It can be necessary to raise the idling speed if it's too weak after this adjustment. The voluntarily too rich settled engine will be well-lubricated and will have a perfect break-in start. This adjustment will be used during approximately 3 fuel tanks and it will gradually be necessary to close the main needle tank after tank until be close to the right adjustment, while still being a little bit rich (this operation must take approximately 7 full fuel tanks) . At every tank fill you are able to finish the regulation of your engine and its break-in. You must keep a slightly rich adjustment during all this period. During the use, you will feel that it is the end of the break-in because the engine releases itself and rises in performance without a touch at its adjustments. After the break-in, it will be compulsory to check your engine or to confide it to your retailer to make this operation. The connecting rod being the part the most in operation during the break-in, it will be necessary to replace it to avoid any problem of breakage.
