Pleased to meet you, hope you guess my name.

Uh,yeah, mechanically lame, barely so-so rider, owned a LM1 for 20 years now. Crap, where does the time go? It's very basic, a Staintune, a Manfred Hecht stage II motor and a close ratio gearbox.
Needs love. Needs ignition work. Needs brakes!

'09 GRiSO, 2400 miles, bit of a pound puppy, just got it back on the blacktop after a long garage hibernation owing to many gremlins. As I'm, how shall I say this, dealership-deprived,
I've been forced, kicking and screaming all the way, to learn to fix shit.

And I've discovered how gratifiying it can be.

  

Eeeeey!

Am in Northern Virginia USA, a native of Central America, and I don't mean Kansas (quick, who did I steal that from?) and when I grow up I want to build a monoshock roundfin Zagato. Fat chance.

Greetings from the wide browned-off land.

You have come to the right place.


 

You gotta get that tank pressurisation issue fixed before anything else.

Get Guzzidiag up and running and make sure your bike is properly tuned. If you can tune a Mk1 LeMans you should have no problem with the GRiSO. After that there are several folks here who can flip you a map to try.

Pete

Now that's what I call a warm welcome. Thanks. Pete, at the risk of sounding dense...You probably caught on to that a couple years ago...Apart from tracking down that elbow and installing it, am not sure what to do. I took a bit of fine wire...a bread bag tie if you must know, and reamed out the breather hole at the filler cap. As it appears to have a 90 degree chicane in it, I cant be sure it's clean.
There is a small diameter hose on the left side with a small brass union that I cant identify on the diagrams I have that was clogged with something like beeswax and copper corrosion. Cleaned that out.

Apart from that, I don't know where to go except to maybe replace that little grey canister the rear tank breather hose connects to. Suggestions?

And here's the thing. It's definitely not doing it now. I will keep an eye on it as the temps rise.

Tune the Le Mans!! I can tuna fish, but I can't tune a Le Mans! Thing is, it hasn't needed it.
It's got a Dyna, the carbs don't seem to drift much, so if my cables are adjusted and ok and ditto the valves, well, it just goes. It's at a point where it needs me to focus on it hard owing to years of benign neglect. Injuries...work...blah....blah, pretty sure it needs coils, and I have some f08's stashed as the nipples are busted off the old ones. I may be able to get the old ones out, but I expect this to be difficult. Once I have those vacuum gauges, the coils, and the brakes done it's mostly cosmetic.
Blinker module? Anyway, it fires right up, warms up a touch, you hear a click and it starts running on one cylinder. Am really trying to figure out if I should do a cosmetic restoration as well. Am pretty inclined to leave it alone, just stick to a functional restoration. I'll send you a pic sometime.

The GRiSO has got most if not all of its power back. The front end feels...twitchy, unplanted.

Cheers!