Got a lot of carbon build-up
Howdy All,
When I was checking the valve clearance on my 05' Rancher 400 AT, I pulled the spark plug to set TDC. I decided to peek into the cylinder with my bore scope and noticed a lot of carbon build-up on the top of the piston.
This makes sense, since the first five years of this wheeler's life was as a ranch workhorse - feeding the horses, building fences, etc. Lot's of hours idling with a dirty air filter means a rich mixture and carbon build-up on piston heads and valves.
As I'm reading all of the threads about this Seafoam stuff, I'm thinking that maybe this is a viable alternative to breaking down the top end and cleaning it manually. I'd prefer not to break it down if I don't have to. So, here are my questions:
1. Which is more effective: run it through the gas, spray directly into intake, or both?
2. Can it be sprayed through the plug hole into the cylinder without damage?
3. The Seafoam website says up to 2 oz/gal of fuel, even though the label recommends 1.5 oz/gal. Anyone have any experience with the higher concentration?
4. How long (or how many gallons) will it take to remove the deposits?
5. Any other suggestions on its use?
Thanks -
Melsman