if it dies out after a couple min run time then insure proper fuel flow from tank and that it is vented properly.. there is a screen in the fuel petcock as well you know.
you can check the float level, but to some extent this is a normal limitation of a carburetor and simply requires some clearing revs to prevent stalling or perhaps a bit higher idle
Clean the carb properly and insure proper jet sizes. Should be around 38 pilot and 122 main jet. Find a strand of copper wire to pass through the jets for verification. The fuel screw will be out 3.5 turns or so. Needle one notch below center.
Crank seals are removed from outside, but do not go there as yet.
nothing ossa specific, but sounds about right for most any trials bike. you are limited with trials radiators though, as they are not made for hard running like an enduro
I have listened to this and it is not apparent the issue, as they all rattle and worse sitting in neutral while revving. does it reduce when the clutch is in and in gear? there will be some rattle in the primary drive gears as well when unloaded.
Sounds pretty normal to me. No four banger ever likes that.
You gotta to roll on throttle from low revs or they can flame out! The CV carb helps a lot, yet not perfect.
So you did check the banjo screen on the side of carb?
All jets clear, really? How did you verify?
Remove carb when this is occurring and break the bowl seal over a clear vessel. Look at volume of fuel, ck for water settling and dirt in your sample catch.
