i have a cv carb on my 1987 sportster xlh883 with 1200 kit and its leaken from the accelerator pump,need rebuild kit ,the numbers on it are 27038-90A,can not find a kit,brought it to the shop to get rebuilt and they said it didnt need rebuild thet adjusted the float needel and put it on and leaks worse then before,took it apart before i brought it to shop and there was no gasket between bowl and carb,no gasket around accelerator pump and the pump cover,the shop told me there dont need any,help would be great,thanks.

 

Try the link below it should help you out.
http://www.jpcycles.com/product/4000050
HTH
Barry In MO.

 

There is no gasket between the bowl and the body but there is an O-ring and the accelerator pump diaphragm has the seal around the edge of it. You may still need a kit as those parts do wear out from old age.