Husqvarna 2009 TE 310 Workshop Manual page 363

Full power version components assembling
Loosen the lambda probe from the exhaust pipe.
DO NOT EXPOSE THE PROBE TO OIL OR SOLVENTS.
Assemble the 8000A7724 probe plug with the 8000A7749 gasket.
Tighten the lambda probe plug.
Detach the lambda probe connector from the main wiring harness then mount
in its place the connector 8000 A6750.
Part. N. 8000 H0368 (09-2008)
"KIT" ASSEMBLING INSTRUCTIONS
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