UPDATE 2-Suzuki shares surge on possible Volkswagen tie-up

(Adds return of full schedule at Japan car plants, closing share price)

* Suzuki shares rise as much as 7.7 pct

* Technical cooperation with VW would help Suzuki-analyst

* Small-car tie-up would be 2nd attempt between VW, Suzuki

* CEO Suzuki says will do best to work with GM in green tech

* Suzuki to return to full schedule at Japan car plants

* Some investors wary, waiting for official decision

By Chang-Ran Kim and Mayumi Negishi

TOKYO, June 26 (Reuters) - Shares of Suzuki Motor (7269.T: Quote, Profile, Research) raced to a 10-month high after a source said Volkswagen (VOWG.DE: Quote, Profile, Research) is exploring a deal to cooperate with the Japanese automaker to boost its presence in ultra-small cars.