Originally Posted By: Phishin
Originally Posted By: Vikas
Can you explain this little bit? Were you able to do before and after tests?
No problem Vikas. This spring I installed new plugs in my 2008 Honda Ruckus (50cc) andmy 1986 Honda Elite 250 (250cc). Also changed the oil. I flashed my light into the spark plug holes and spun the piston around to the top and both were black. Not only black, but fairly rough looking. Uneven. Like the carbon had deposited roughly....leaving little spikes and valleys. Almost what asphalt looks like.
I ran some big doses on Regane 2X HM in several tank fulls (I think 4 tanks worth in each, which is 8 gallons total in the 250cc and 4 gallons total in the 50cc scooter. This is about 400 miles on each scooter. The oil changed pretty dark real quick in both as well. Since neither nearly hold any oil at all, I change the oil all the time (each less than a quart). Usually every 500-700 miles. Never over 700 miles.
I changed the oil and removed the spark plug. The old 250cc scooter still had a black piston top, but it was smooth, there was no build up on it. Just color. The 50cc scoot had a little black on the piston and some shiny metal, and zero build up on the piston top. The Regane cleaned it all right up. Both scoots run a little rich for longevity reasons and fuel diltion is the main reason I change their oil all the time.
The "trick" is, I used a 1/2 bottle for each 2 gallon tank full inthe 250cc and a 1/3 bottle for each 1 gallon tankful in the 50cc. Big doses.
GREAT test & write-up!!