Stock main jet confusion

[jentzschman]

I have looked at three different sites showing three different main jets as standard: 178, 172, 170

Manual says 178
RMATV OEM diagrams show 170
South valley motor sports OEM diagrams show 172

What is the stock main jet? How can I figure this out with so much information contradicting each other?

 

[Cascadia]

I'd go with the manual.

 

[rholbrook]

What's in it now?

 

[jentzschman]

162

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[rholbrook]

Are you thinking its too lean or too rich? You fouling plugs?

 

[jentzschman]

Are you thinking its too lean or too rich? You fouling plugs?

To lean

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[jentzschman]

Threw in a 168 today and man what a difference! She really came alive.

 

[sixstringsteve]

does it have a hit yet?

 

[jentzschman]

does it have a hit yet?

I would say yes and no.... I could definitely feel a deference, but was not able to really open her up. It pulled much better in the higher gears/throttle position.

I might try one step richer in a week or so so I can get a better feel for the 168 vs 170