VESPA GTS 250 i. e. EXHAUST MANIFOLD REPLACEMENT

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VE SPA GTS 250 i. e. EXHAUST MANIFOLD REPLACEMENT To replace the exhaust manifold, order part number 872659 as spare part following standard proceedings. OPERATION PROCEDURE The above picture references the old exhaust flange and the replacement exhaust flange kit part number 872659. Replacement Old Page 5 of 16 With the complete exhaust system removed from the vehicle remove the lambda sensors. Refer to page 88 and 89 of your Vespa GTS workshop manual for exhaust removal. Loosen the 13 mm bolt to loosen the clamp. Bolt Remove lambda sensor Page 6 of 16 Remove the header pipe from the exhaust box. Remove the exhaust packing and clamp. Remove exhaust manifold Gasket Clamp Page 7 of 16 Once all packing is removed check and make sure all surfaces are clean. This will help the installation of the exhaust gasket. Install the new clamp supplied with the kit, but do not tighten down at this point. Fit the exhaust gasket onto the new manifold. Push the new exhaust gasket in with the manifold until fitted all the way down to the flange. Check surfaces. Manifold Gasket Clamp Flange Page 8 of 16 Replace the lambda sensor and tighten down to 40- 50 Nm (29.5 -36.8 ft lbs. ) .