Jump to content
Sign in to follow this  

450 cam mod. needing info.

Recommended Posts

Hi all, 1st post here. you guys have some awesome info.!!! I just bought the 450 cam for my 2001 426f. I was wondering what else I would need to buy to complete the swap. (other than shims) I have so far only bought the cam itself. I am buying a new perch (possibly a complete clutch system) and was wondering if i needed a compression release at all with the cam mod. I've heard that after doing the swap you can take off the compression release and put a plug there. Any help would be appreciated. Thanks all, BOLT

Share this post

Link to post
Share on other sites


You have everything you need. If you want to remove the manual decomp shaft you'll need a way to plug the hole. Yamaha sells a $3 plug but there has been some problems with the plug coming out, the fit is pretty lousy.

I have been working on an aluminum blanking plug that will slip in after you remove the decomp shaft. I have 2 of the plugs installed in my bikes and sent a 3rd prototype to another member to try.

Currently I'm waiting for a CNC machine shop to make a run of 50 of the plugs and will sell them for cost to TT members. The cost will be $5 and include packaging and shipping.

I'll bump the pictures of the plugs so you can see what I'm talking about.

Also, watch the 1/2 clips in the cam bearing caps, they'll fall into the engine in a heartbeat! :)

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