S51 Vergaser Problem?
Guten Tag erstmal,
Ich besitze eine Simson s51 mit folgenden setup:
Lt51 super d, 5km runter
Bvf 16n1-11, 80HD, 3 nadelkerbe
Alter filu Einsatz
Also zu meinem Problem. Wenn man sie im stand hochdrehen lässt, dreht sie sauber hoch aber danach wenn man vom Gas geht, dreht sie sehr lange nach und stirbt danach ab.
Ich bin echt am verzweifeln, ZZP ist 1.7mm vor OT und falschluft zieht sie nicht.
Hab schon etliche Einstellungen probiert, komme aber nicht drauf.
(1 votes)
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Did something happen in the air supply, so you have to go up with the HD.
Ignition candle does not yet give a meaningful picture but moves in the gray-brown area.
And as he turns, I think the mixture is too lean. And he dies because the lean mixture has too little power to keep the motor alive.
That’s why I hung the needle higher so it gets fatter. But I didn’t see any difference.
Unfortunately, I have no other main nozzle left to build and test it. If I remove the connection from the air filter to the carburetor, it will die. So some evidence that he’s running too lean.
If you don’t have good ratchets anymore, another possibility would be to clean air filter again, nozzle to 75 and then look how it works. But I also lose the power I want to lose.
Yes, I would do it like this: First of all, make original condition again and then make only one change – try – next change – try out. So you can get to your ideal setting. Ori HD is 72 at 16n1-11
Moin Yakasu,
My tip is the main nozzle. Have a look at the cylinder kit. 75 and 80 nozzles are recommended. I don’t know how they’re coming to this narrow board. It says:
How can the a Carburetor two Build main nozzles with different sizes? And 16n1 is just a rough description of a carburetor type until 1986. It is not clear whether it is, for example, the -1, -3, -5, -6, -8, -11 or -12 in which different HDs of 50-80 are installed. Bische vage das Ganze.
However, you use the original carburetor, the -11. And original is a 72 HD. an 80 would be suitable for the gasifier 16n1-3. Just try a 72 HD. Maybe it works better. Evtl. then test the 75s.
Apparently too much fuel is transported into the combustion chamber via the too large nozzle and cannot be completely burned there, which is why the spark plug is drained off.
Alternatively, you could try to see if it works better with the 75s and 80s HD if you catch the partial load needle a notch deeper. Because the deeper, the leaner the mixture.
What does the candle picture say? Wet and dark?
Choke tested?