However as always there are things to be aware of:
1) Check your wheels for size. It is not unusual to have wheels with different diameters / circumferences because the tyres come from
different moulds or have been stretched
2) check the floor is level. A cm of difference across the width of a kart is not impossible on a garage floor.
3) unload the kart. This means taking off the torsion bars, removing the rear bumper and making sure the seat is loose and removing the engine
Check the kart in the unloaded condition, then put each of the items back on, checking between each one.
I've known people to admit that the seat fits because they either pull it out to the mounting points by the bolts, squeeze it in between the bars or find that the seat stays don't really fit but can be tightened into place. Similar with the rear bumper, if you have to stretch it on or push the chassis bars apart to get it to fit then you are potentially putting stress and a twist into the chassis.
Also ask yourself if correcting a small amount of chassis twist actually does anything, because you race the kart with an engine and a driver on board and their weight definitely changes the shape of the chassis. Sometimes the 'twist' will change simply by the direction of the last corner you took before you measured.
More important is to check the alignment of the chassis, that the front axles are aligned with the rear axle and that is done by measuring across the quadrilateral.eg: from left yoke to right hanger and right yoke to left hanger, the distances should be identical.
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Twisted chassis by 'gazv' (13 Jul 2014 @ 17:11)
