GSX-R750J Flat-Rate Motorcycle Inspection and Carburettor Maintenance

Well, it’s been a while since we’ve had work to do.
I noticed something was off on Saturday…
Coming in a bit early today was the right call.
 

 
I don’t know much about what the 750J’s carburettor is like, but at first glance it looks like an RK carb.
 

 
38 mm, maybe…
 

 
And it even has a power jet.
 

 
Plus it’s a BST large body with no filter port.
 

 
The manifold has been swapped out for an RK unit and is different from what came on the J.
 

 
Quite a bit of sediment buildup.
 

 
That one’s expensive, this one’s been discontinued…
This kind of thing is a real headache.

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