Viper wont start

[TPAY243]

Upton44 is there anyway you could get a picture of the stub shaft so we could see how far the timing marks are off. I know this is happening but I just don't know how this is happening, mine has been doing weird stuff while starting lately I'm gonna have to pull my stub shaft and look at the timing marks i guess.

 

[Carla 123]

Dealer is supposed to send me pictures .when he does will post them

 

[TPAY243]

That would be great Thanks.

 

[cannondale27]

Well timing jumped.Even though it's off warranty yamaha said they would pick up the tab $632.00

Ignition Timing (Stubshaft) or Valve Timing (Chain)?

 

[Carla 123]

This is all they sent me .said timing skipped out 1 notch.going there tomorrow will take some more pictures

 

[Carla 123]

Ignition Timing (Stubshaft) or Valve Timing (Chain)?

Ignition timing

 

[cannondale27]

This is all they sent me .said timing skipped out 1 notch.going there tomorrow will take some more pictures

Yup thats off one notch. Good catch by a sharp dealer!

 

[cannondale27]

Should be lined up where red lines are

 

[hognit09]

How does this happen?

 

[TPAY243]

Wow that is amazing i can't believe that it can move like that, is that gear just pressed on the stub shaft or what. This looks to me like it could be a problem, all the re flashes in the world are not going to matter if the timing is off. Gonna pull mine apart this week and take a look. Thanks for the pics and info.

 

[Carla 123]

Wow that is amazing i can't believe that it can move like that, is that gear just pressed on the stub shaft or what. This looks to me like it could be a problem, all the re flashes in the world are not going to matter if the timing is off. Gonna pull mine apart this week and take a look. Thanks for the pics and info.

We are all in this together.

 

[cannondale27]

How does this happen?

It’s just pressed on. Some must not be tight enough. This is one reason I have been testing the Sidewinder flywheel and stator in my viper motor. It eliminates this bad design.

 

[Mike P]

Should be lined up where red lines are
View attachment 147549

Any idea how this can happen?

 

[cannondale27]

Any idea how this can happen?

Answer above. This is only third time I saw this so not that many. Quality or lack of it plain and simple.

 

[Carla 123]

Should be lined up where red lines are
View attachment 147549

Dont see how it can jump like this without damaging those splines