User manual PIAGGIO X7

[. . . ] Com manuals search engine SERVICE STATION MANUAL X7 250ie The descriptions and illustrations given in this publication are not binding. While the basic specifications as described and illustrated in this manual remain unchanged, PIAGGIO-GILERA reserves the right, at any time and without being required to update this publication beforehand, to make any changes to components, parts or accessories, which it considers necessary to improve the product or which are required for manufacturing or construction reasons. Not all versions shown in this publication are available in all Countries. The availability of single versions should be checked at the official Piaggio sales network. [. . . ] 10 mm Inspecting the crankcase halves - Before proceeding to check the crankcase halves, thoroughly clean the all surfaces and oil ducts. - On the transmission-side crankcase half, take particular care when handling the oil pump compartment and the oil ducts, the by-pass duct, the main bushings and the cooling jet on the transmission side (see diagram). - Take particular care, also, that there are no signs wear in the oil by-pass valve housing (see Chapter Lubrication), as this could prevent a good seal in the valve, which regulates the oil pressure. - On the flywheel side crankcase half, take particular care cleaning the oil ducts for the main bushings, the oil duct for the jet that lubricates the cylinder head and the oil drainage duct at the flywheel side oil seal. Com manuals search engine X7 250ie Engine - Inspect the coupling surfaces on the crankcase halves for scratches or deformation, taking particular care with the cylinder/crankcase surfaces and the crankcase halves surfaces. - Defects in the crankcase coupling gasket between the crankcase halves or the mating surfaces shown in the diagram, could cause a drop in the oil pressure lubricating the main bearings and connection rod. - Check the main bearing seats that limit axial clearance in the crankshaft show no signs of wear. The dimension between these seats is measured by way of the procedure described previously for measuring the crankshaft axial clearance and dimensions. Com manuals search engine Engine X7 250ie Inspecting the crankshaft plain bearings -T o obtain a good bushing lubrication it is necessary to have both an optimal lubricating pressure (3, 2 bar) and a good oil flow rate; the bushings must be correctly positioned so as not to obstruct the oil supply channels. - The main bushings are comprised of two halfbearings, one with holes and channels for lubrication whereas the other is solid. - The solid half-bearing is intended to stand the thrusts caused by combustion, and for this reason it is arranged opposite the cylinder. - To prevent obstructions in the oil feeding channels, the matching surface of the two half-bearings must be perfectly perpendicular to the cylinder axis, as shown in the figure. - The oil feeding channel section is also affected by the bushings driving depth compared with the crankshaft axial clearance of the limiting surface. - Check the inside diameter of the main bushings in the three directions indicated in the diagram. - Repeat the measurements for the other bushing half. - There are three crankcase versions: with RED main bushings, with BLUE main bushings and with YELLOW main bushings. - There is only one type of main bushing housing hole in the crankcase The standard bushing diameter after driving is variable on the basis of a coupling selection. - The bushing housings in the crankcase are available in two categories, Cat. - The main bushings are available in three thickness categories, identified by colour markings, as shown in the table below. 037 Original Match the shaft with two category 1 crank webs with the category 1 crankcase (or cat. 2) Furthermore a replacement crankcase cannot be matched with a crankshaft with mixed categories. The replacement crankshaft has half-shafts of the same category. [. . . ] Com manuals search engine X7 250ie Time Fuel tank FUEL TANK 1 2 3 Code 004005 005010 004109 Action Fuel tank - Replacement Tank float - Replacement Fuel tank breather - Replacement Duration TIME - 29 Downloaded from www. Com manuals search engine Time X7 250ie Rear shock-absorber REAR SHOCK ABSORBER 1 Code 003007 Action Rear shock absorber - Replacement Duration TIME - 30 Downloaded from www. Com manuals search engine X7 250ie Time Handlebar covers HANDLEBAR COVERS 1 2 3 Code 004018 004019 004101 Action Front handlebar covers - Replacement Rear handlebar covers - Replacement Windshield - Replacement Duration TIME - 31 Downloaded from www. Com manuals search engine Time X7 250ie Handlebar components HANDLEBAR COMPONENTS 1 2 3 4 5 Code 003001 002063 003061 003059 004162 Action Handlebar - Replacement Complete throttle control Replacement Accelerator transmission Adjustment Counterweight - Replacement Mirror support and/or brake pump fitting U-bolt - Replacement Front brake pump - Replacement Rear brake pump - Replacement Brake lever - Replacement Left knob - Replacement Right-hand knob - change Complete throttle control Replacement Front brake fluid and air bleeding system - Replacement Rear brake oil bleeding system - Replacement Duration 6 7 8 9 10 11 12 002024 002067 002037 002071 002059 002060 002047 13 002080 TIME - 32 Downloaded from www. [. . . ]