Jonsered rideon issue

[Tauranga]

Hi, I'm looking for advice on getting my Jonsered LT 2118 CMA working properly. Recently had it serviced and motor runs sweetly but deck won't engage, just conks out each time I try with max revs as I always have. Could be wrong but amps seem to drop off sharply when I engage the deck - never paid attention to this before so it may or may not be related. I'd like to use it for cutting not just riding round the back yard! Grateful for any bright ideas what the issue could be.

 

[StarTech]

Check that both cylinders are working on the engine. V-twins runs fine on one cylinder until they are heavily loaded by the deck.

 

[hlw49]

Could the MODULE.REVERSE.ROS switch. Some of those if you unplug it it will bypass the switch. Try it and see what happens.