| Author | Message | ||
     M2statz |
Broke apart my primary because I thought that I had blown the main shaft seal, was pumping fluid out the primary vent, and there was about a gallon of gas in the primary. I have not ridden the bike since I winterized it last fall. Sea Foam in the gas, let it idle and then turn the gas off. Started the M2 this spring and after a nice warm up, it starts pumping the fluid out the primary vent. My questions are 1) Is it a bad needle seat or needle in the carb and 2) will washing all that gas through the cylinders strip the oil of the rings, valves and wall causing a bigger issue, 3) do I have have to worry about compression now? Thank god for the service manual, but I think I am at the limit of my mechanical ability. Thanks for any help... | ||
| Jramsey |
Faulty petcock or maybe turned the wrong way. I'd drain all fluids and change the filter then fill with a cheaper oil and run for a few minutes. I'd do the above "flush" twice then fill with your regular oil plus another filter. This same problem happened to me two weeks ago on my Honda powered pressure washer. I never dreamed the crankcase could hold 1.5 gallons of gas. | ||
| Rjn |
had the same problem with my M2, there was dirt on the needle of the carb, didn't close, thus flooding everything. cleaned the carb, rinsed the engine out and changed all the fluids, changed filter. No problems with the engine after starting it up again. but i would check the seals anyway now everything is open making sure they are OK. | ||
| M2statz |
The seal appears to be OK, could the gas being less viscous than the oil pass by the seal more easy and not harm the seal? | ||
| F_skinner |
Ah, found your post. It was right in front of me... I was just wondering about that. I was trying to trace how the gas got through the seal... Oil is thicker but it seems to me it would pass as well. Can I ask how you checked the seal? It has been my experience that they will drip a little oil while on the sidestand and that is how I know they are bad. I do not know the correct way if there is one. | ||
| M2statz |
Just visual, I really do not know how to check them either, the rubber looks good and I just replaced the seal 4000 miles ago, so I hope it is still good. I would pose the same question to those that have more experience with these matters than I do. How does one check the main seal? | ||
| Kalali |
Sorry but I can't understand how could that much gas get in the primary in the first place? Gas tank-> crankcase-> primary? But how? | ||
| Jramsey |
>>But how? Leaky petcock-sticky needle&seat. Gas dribbles out jet orifices into intake. One intake valve partially open,gas pools in cylinder. Over time gas will leak past the rings end gap settling in lower end and fills up to the point the gas starts seeping thru the crank seal filling the primary/tranny. (Message edited by jramsey on April 29, 2010) | ||
| Buellistic |
There two things to remember to if you have a "CARBURETOR": If you walk away from your bike, TURN THE GAS "OFF" !!! If you haul it, Pick Up or Trailer, TURN THE GAS "OFF" !!! | ||
| Rjn |
my problems started standing still for some stoplights. | ||
| Swampy |
How did the oil come out of the primary? In two parts, oil then the gas? What I am trying to say is, the gas will dilute the oil and mix in and then not separate again. You can also check if there is gas in the oil by trying to light the oil on the dipstick with a lighter, if it burns it has gas, if not there is no gas in it. | ||
| Kalali |
I did not realize that much gas could get past the rings...didn't think of the intake valve either...it all makes sense now. Thanks for the explanation Jim. |
