HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
Raven1911

In the process 450 exhaust cam question?

6 posts in this topic

Hey guys,

I am in the process of switching out my 426 cam for the 03 450 cam. I noticed the 450 cam has a little knob on it that my 426 cam doesn't have. Is that the auto exhaust? Just want to make sure before I bolt it together. I am sure of the part number. If you don't know what I am talking about I can post a pic. thanks

Share this post


Link to post
Share on other sites

That little knob is what opens the exhaust valve creating the decompression at low rpm, while starting. Then when the rpms pick up, after it starts, that is retracted in.

Share this post


Link to post
Share on other sites

Yes, the little knob is the "auto-exhause" feature. If you move the weight on the end you'll see it retract and that's what happens when the engine fires up.

Share this post


Link to post
Share on other sites

Cool thanks fellas.

I am trying to find a 195 and 200 shim to complete my cam but am having a hard time finding them. I am NOT buying a whole shim kit for $100. Let me know if you have any suggestions. I am going to look into some other cycle shops tomorrow.

Share this post


Link to post
Share on other sites

Nationwide Cycle in Lancaster has a huge selection of the 9.5mm dia shims you need.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0