Power delivery issue on LM 1000 IV

[araveug]

My '85  Le Mans 1000 has been in storage since winter and taking it for it's annual MOT I was having real issues getting up to speed. It started first time on the button as usual and ran up to about 30mph fine but after that I struggled to maintain 40mph especially when any incline appeared in the road. The only clue I have is that a few times during the winter, when I turned the engine over and ran it I think the RH carb flooded and leaked fuel. It  needed a  tap with a mallet to stop this so I presume the float was sticking. However, I would have thought that the engine should be able to get up to 40mph without too much trouble even if one carb wasn't delivering fuel as it should. Any ideas out there from anyone who has had similar issues on the 850/1000 carburetted models? 

 

Thanks

Gareth

[Frenchfrog]

Maybe time to have a looksee in there ...I had float issues on a new set of Dells a while ago...or also jets gummed up after the down time ?

[po18guy]

As to carburetors in general, they hate modern adulterated (ethanol) fuel. They also hate storage. I think it is time to pull the carbs and clean them thoroughly, perhaps with a rebuild kit. Does the bike have the Dell'Orto "pumper" carbs? Even more so, as accelerator pumps quickly gum up when left idle with even a trace of gas in them. 

I have a couple of Kawasaki GPz500 twins. The are absolutely notorious for carburetor issues - especially after storage. 

[pete roper]

Enrichened plunger stuck open? Flooding due to stuck float? Does it have the dark brown anodised carb bodies? If so it may be suffering from the float spindle pillar *Growth* issue.

First thing would be strip , clean and rebuild the carburettors though. Disgusting things. Should be outlawed!

Also check the advance mechanism in the distributor is moving freely.

[Lucky Phil]

Blocked fuel tap or tank vent.

Phil

[araveug]

Thanks to all for the advice. Looks like checking the carb and fuel supply to the carbs is the starting point. Will follow up on the other items if a bit of carb maintenance doesn't cure it.