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A chemical fix for a mechanical problem!!!

D

dubtac

Just got it firing!
Joined
Dec 30, 2011
Messages
12
I am no means a Guzzi Technician or a much of a car guy but I think I found the miracle chemical for the Guzzi's unstable idle after a couple thousand miles. My friend an ex-marine now General Motors ASE Technician was sitting outside helping me troubleshoot the Ole Guzzi with its erratic behavior and sputtering and dying when trying to find an idle. We went through the Diag codes checked for breaks in wiring and even went as far to dielectric grease and clean all connectors just as anything with terrible connectors and spraying break cleaner looking for vacumme leaks.
So in my buddy was like lets go to the shop he works at and get some of the GM upper cylinder lubricant for induction services, he explained he gets trucks with a low amount of miles on them that are carbonized to the gills on the valve seats and a large amount of carbon causing the piston rings to stick so I was like sure why not whats the worst that is going to happen. We blow it up o well I will buy a HONDA.
We removed the outer 13/16ths spark plugs and used a Windex bottle to spray the crowns of the pistons with the lubricant and allowed it to sit inside the cylinder for a hour. He said we need to eject the freshly broken carbon out of the cylinder. You should of seen the lovely carbon spewing out of the spark plug holes all over the cylinder heads. So he asked me do you know where the vacum lines for the throttle bodies meet the purge canister. I was like I'm not sure so he noticed there was a vacum diagram and figured it out.
We put the plugs back in and started the Ole Guzzi back up, it let out a massive cloud of white smoke from the exhaust and cleared up. So what he did was use the vacumme line that connected to the throttle bodies and used his windex bottle full of the lubricant and started spraying down the line. At one point had a beautiful yellow flame spewing from the exhaust, eventually the bike died from the IV drip. He was like it should be good to go now. I took the Guzzi for a spin and performed like a new bike. The idle stabilized and the puttering desisted.
 
How many miles on which model and what kind of servicing has the bike had over its life?

Thanks
 
An old time trick to clean carbon off of the pistons and prevent dieseling of gas engines, was to pour a small amount of Kerosene into the carb throat. the kerosene would remove almost all of the carbon in just a few seconds of running. Today many of the fuel system cleaners use Kerosene as one of the cleaning agents.

A cure for stuck rings was to pour asmall amount of Kerosene into the cylinder(s) and let set for a short time. Start the engine and almost everytime the ring problem was history.

Good Luck
 
The bike is a 2006 Moto Guzzi Breva 1100 it has 17,000 miles on the odometer, maintenance has been basic: valve adjustments, Schaffer oil changes every 1500 miles, stock air filter change 3000 miles. As for gas always use 93 octane with no ethanol which can be a challenge to find. Changed the inner and outer plugs for the bike twice in sets.Changed 6 tires, brake pads twice.
I put this motorcycle through hell and the Guzzi keeps coming back for more and more. I got the bike when I was 19 would you expect any less? I really enjoy the bike I guess I got the fever.
 
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