factory carb jet specs

[H€PHÆ$TU$]

Does anyone know what stock low speed jet the 717's in my 98 Sportster 1800 should have? I have 3 new carbs for my two engines and all came with 70. I have the original factory carbs for my engines and they have 70. I looked in 3 other scrap carbs that someone near me had and they all had 70. But my manual says it should have 72.5, a new carb from OSD comes with 75, and other ski's with my same engine and carb (BN40i-38) call for either 72.5 or 75.

 

[mikidymac]

It should be a 70.

 

[H€PHÆ$TU$]

It should be a 70.

Thanks but where do you find that?

 

[mikidymac]

On the parts diagram for you model.

 

[H€PHÆ$TU$]

On the parts diagram for you model.

Good call. So do you trust the parts diagram or the service manual more? Because they disagree ...

 

[mikidymac]

Parts diagram as the service manuals are written on pre-production units.