How loose can my Suzuki SV650 chain be?

attempt to pull the chain away from the rear sprocket at the back center. If the chain can be lifted to the height of the top of the sprocket teeth on any brand/model, then it is elongated enough to need replacement as soon as feasible and is causing undue wear. For most street-oriented motorcycles, replacement limit is around 1.5mm of play when measured like this (i.e. - being able to pull the chain 1.5mm off the rear center of the rear sprocket).
 
it it jumps off snaps break slings into gear box and messes up transmission costing you ten times more to replace

replace chain replace front rear sprockets cheaper than a new trans or block
 
it it jumps off snaps break slings into gear box and messes up transmission costing you ten times more to replace

replace chain replace front rear sprockets cheaper than a new trans or block
 
The general rule of thumb is 1/4" movement up and down when the chain is cool. It is a simple adjustment and needs to be checked once a month. I'd suggest that you become responsible and do it as the alternatives are not pretty.
 
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