Yamahaulin
10+ Year Contributor
- 695
- 12
- Jan 30, 2010
-
Bowling Green,
Kentucky
What causes this buildup in the exh port of my car. I haven't run it in a month and took to turbo header off to replace with a new one. I noticed this crusty white build up in the ports. I have run some 110 leaded fuel less than 1000 miles ago. The motor is new maybe 5000 miles total.