activpop

Found the problem. There was a leak somewhere in the evap system. I pulled the tubes off of the throttle body taps and then plugged the taps. Runs like it should. Need to pull the tank to rid myself of all that crap. When I do that I know I'll get into replacing other stuff too. One thing leads to another...

I know not everybody can see this. If you're interested, there are ways. https://www.facebook.com/share/p/1BHs3WvArq/

That's the plan!

My Coppa has developed a miss at even throttle or sometimes a miss at slow accelerating from a stop. Never under more spirited acceleration. I suspect a possible intake air leak from the evap system which is still on the bike. You can see the cracks in tubing terminating at the throttle bodies, but that is only a few inches of tubing. Who knows what is going on under the tank. I will remove the tank this off-season to remove all of that apparatus. To determine if it is truly an air leak, can I just pull the two lines at the TB and plug the inlets to see if that is truly the cause? Will I have any problems leaving those two lines dangling there? I can plug them too. That cannister in front of the rear wheel needs to go. Will I devalue the bike any by not having it perfectly stock?

Spoke to tech support at Mobil 1 this morning. He couldn't tell me the type, said it is proprietary info. But he said the V twin 20w50 they make is specifically for air cooled four strokes. It has a much higher percentage of zinc in it than their 15w50, which has much less zinc and is considered an auto oil. Their 5w40 racing motorcycle oil is formulated for Japanese water cooled engines, which maintain a more constant temp. So for now, I'll stick with the V-twin Mobil 1 and do some more digging into Redline, Liqui Moly and some of the others. In the end, I agree with Pete's point. Put some oil in it. Simple, but true.

@Lucky Phil, Mobil 1 makes both a 15w50 and a 20w50. I don't know if it is type 4 or 5, can't find anything on the bottle that says that. The 20w50 is specifically marketed for 4 stroke V twins. I have used Castrol for decades. In the last few years they have completely changed their offerings. I can't get what I want from them now.

I have had big twins since 1977. I'll do what I always have done. 20w50 summer, 10w40 winter. Never had a problem. But then there are my 1200 8v's that calls for 10w60. Never understood that big spread on viscosity. I follow their recommendations for those two, but it still has me scratching my head. It certainly goes against @Lucky Phil #4.

@docc, I get all that, and I agree when we are talking engines 20 years apart. But these engines, and user manuals are only three years apart. But it could be because they were written by Italians.

I'm a little baffled. Coppa owners manual has required oil stated as 5w40. V11 manual calls for 20w50. I thought these engines are basically the same. What gives?

Well, I guess I shouldn't tell you I have two of them, but I always like to see how much comes out.

Very nice, and easy to handle too. I might need to upgrade. Right now I have a Walmart plastic graduated liter measuring cup.

But was there mutton?

Just trying to nip things in the bud.

Thank you @audiomickfor digging that up for me. Very good info! I will switch them out today. I have the new ones teady to go.

I've done that already. Couldn't find any mention of Tycos. I pulled all of them to Deoxit the contacts.

I have Tyco (made in Portugal) relays in my Coppa. Where do they fall on the scale of reliability compared to a Picker or Omron? These were the stock ones is my guess. I've got a bunch of Pickers I could replace them with.

I figured I would find out how much shipping that engine would be to Oregon. Almost 1k. Not worth it to me. If I lived closer I would be there with my truck. I have been trying to call Piaggio in NY, but no one ever picks up. Can't leave a message because mailbox is full. I wanted them to run the number on the engine to get the skinny on it. No matter now. I just have to keep my eye out for another $1500 greenie.

When a price like that pops up on a bike like that, sometimes it's tough to move fast enough.

Whatever spins your propeller...

2004 engine. Purchase new in 2012. Never installed. $1200 Georgia MP

Two Georgia bikes on MP. Very nice writeup for the greenie.