My MC 54 250B, 2008 model just does not run much at all. By bobf (Read 3,857 times)

[Alleyoop]

It is now back on, all clamps and screws are very tight. I have run it a couple times and let it cool between and it seems to be working well now and the first idle is a bit fast, up to around 2500 for a minute or less, and then it starts slowing down to about 1800 rpm. Getting to think I am near the end of messing with the starting and running things.

This is what you said in the previous post where I had told you that you had a very bad air leak. You found the disconnected tubing and fixed it and said the above.

So if it is still doing the same thing re-check what you did it may have come off again.

Starting up idling at very high rpms is sign of running lean even with the extra fuel being fed by the ENRICHER for cold starts. Your ENRICHER is working that is why the RPMS start to drop with a couple of minutes which means the ENRICHER is cutting off the extra fuel.

IF no AIR LEAKS then you need to ADJUST the CARBS FUEL MIXTURE.

scooterdoc.proboards.com/thread/1499/4ts-carb-tuning

[bobf]

I know the air tube is on good. Could it also be the block behind the carb and to the engine? If so I will have to tear it all down again and start over.

Right now the wife and I are head to the bank and getting some papers for the sale of our Colorado home notarized. I may not get back to this for a day or so.

This is getting to be a real drag. If this does not fix things then I may be forced to do the mix adjustment thing. Really don't know why as it was running fine before I started this valve adjust.

[Alleyoop]

Get a spray bottle of water and spray that area if the idle changes it is leaking.

DID you take the evap SYSTEM off( THE TANK VENT SYSTEM)? If so there had to be a hose going from the canister to the AIR BOX, DID YOU PLUG UP THAT CONNECTOR ON THE AIR BOX? You have to get a camera BOB and take pictures, All this could of been taken care off very quickly if I could see how things are hooked up.

Pictures are worth a thousand words.

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