September 24, 2019

Yamaha Thundercat – jerky at midrange

Yamaha Thundercat – jerky at midrange

Hi All,


As the title suggests I have a thundercat (yes its and actual bike lol). Its jerky in the midrange for most gears (1-4) and wont accelerate properly in 5th and 6th.


Running from 1-5k rpms is perfect, great bike around town but once Im on the motorway its a pig.


I’ve to drive in 4th at 11,000 rpm or else in 5th/6th at approx 7/8 rpm but jerky as fuck. I took the bike as a part trade against my X11 so I’ve very little history of the bike.


I have changed the oil and filter and the coolant -something I always do on any bike i get. I will be going at this on the weekend just want to get a direction on where to start and if there has been anyone with the same issue.


Oh and shes at 65,000 kms


[ Im thinking its a fuel issue – but will be checking the coils and plugs etc]


Source: Yamaha Thundercat – jerky at midrange

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