apexgt4life
Expert
I have a 15 and 18 stock vipers. What is the stock settings for secondary twist and or what should i set at.
I feel they were both set different stock?
I think 15 was at 2 and 6
18 was at 1 and something as my mark rubbed off
Now im all confused
I feel they were both set different stock?
I think 15 was at 2 and 6
18 was at 1 and something as my mark rubbed off
Now im all confused

Yamajon1
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Former Yamaha sleds:
2004 Venture 600 2002 SX Viper 700
1997 Vmax 600 SX 1994 Vmax 600 1989 Exciter
1986 Vmax 540 1986 Phaser 1981 SRX 440
If I remember correctly 70 degrees is stock setting.
apexgt4life
Expert
So 1 and 6?
Guees im confused on all the numbers on
Guees im confused on all the numbers on

Yamajon1
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Former Yamaha sleds:
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1997 Vmax 600 SX 1994 Vmax 600 1989 Exciter
1986 Vmax 540 1986 Phaser 1981 SRX 440
Yes.
apexgt4life
Expert
Ok any other input. One appears to be set at. 6 and 2

Yamajon1
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Former Yamaha sleds:
2004 Venture 600 2002 SX Viper 700
1997 Vmax 600 SX 1994 Vmax 600 1989 Exciter
1986 Vmax 540 1986 Phaser 1981 SRX 440
That would be 1 step tighter, 80 degrees. Lower settings will let the secondary open quicker loading the engine a little more and dropping RPM slightly. Higher settings the secondary opens slower and you may see slightly higher RPM


DennyTuna
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2 -14 Vipers and 2 - 16 Vipers all set at 6-1 from the factory and still today with TPI big Venom kits or Schmidt Bros kit.


Confused
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That would be 1 step tighter, 80 degrees. Lower settings will let the secondary open quicker loading the engine a little more and dropping RPM slightly. Higher settings the secondary opens slower and you may see slightly higher RPM
Is there are chart on what settings equal what degree? Or is it specific to manufacturer or model?
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