Slow hole shot

[capnkerr]

I recently bought a 2015 GTX 155 (105hrs) and a 2008 GTX 155 (205hrs). I've noticed the 2015 struggles with the hole shot. It is much slower than the 2008. Once it gets to 5-10mph it has great pull all the way to 56mph with strong throttle response. Any thoughts on where to start? Maybe with cylinder compression and check plugs or is there something more common as a start point?

 

[skiasylum]

Spark plugs are always first.

 

[ski-d00]

Are you putting it in sport mode? You have to press it twice.

 

[POPPS]

I’m with asylum,,,new plugs to start,,and I like load the battery first…as my first move.