had a montesa 4rt befor the evo
choke and hot start both in. it was like that befor fitted new kill switch
just thot it was down to being new but was ok when had it first time out
did not start playing up till later on in the trial 2nd time out
would take it back to dealer but 6hour drive to do that going to check the carb the night if still the same just put it to dealer
thanks for the tips