|
If there is any chance it needs a new chain .. that is a relatively cheap insurance policy. Be sure to replace all things which touch that chain if you can.. tensioners, rails, etc.. sprockets if you are able...
Then set the timing by the correct method.... the position of the number one valve...
that is cheap and will give you a baseline for the rest of the improvements.
I would do just one operation at a time....then you can tell what it was that made a difference.
|