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jetting issues/hesitation

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I'm having issues with my sm. It hesitates at around half throttle when cruising at around 60mph, happens in every gear but have been testing on a long straight road in 5th.

Here is the spec

dynojet kit 3110

#25 pilot

extended fuel screw 3 turns

2nd groove on needle

155 main jet

3x3

Fmf header and can

k&n filter

I changed the needle to 3 groove (middle) and it raised the hesitation point to 70mph. Do I raise it again? Or is there something else I need to change?

This is my first time jetting a bike and it seems to run well on low or full throttle, just cruising is the issue.

thanks in advance

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Tried it without the airbox cover and it made things worse. Massive hesitation between 60-80mph on 1/2 - 3/4 throttle cruising

any ideas?

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Tried it without the airbox cover and it made things worse. Massive hesitation between 60-80mph on 1/2 - 3/4 throttle cruising

any ideas?

 

Re install side cover..

Now partly cover your 3x3 hole with tape.....Cover it by 1/3 , leaving 2/3 open....

Test ride under same running conditions.

Better or worse?

Edited by Craigo 485sm

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