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Post by sabotendar on Apr 21, 2014 6:59:04 GMT -6
I walked a while on the bike yesterday and today i decide to take out the to see whats happening take a look.  The plug is NGK B8HS, also i check for compression leaks on cilinder and head and all clean too no leaks or oil came out from there the same thing on the exaust pipe no leaks of oil or anything.  A friend give me this exhaust pipe i can put in the bike?  Sabo. |
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Post by sabotendar on Apr 20, 2014 21:14:45 GMT -6
The amount of smoke looks acceptable to me. Hard to tell too much just with smoke since different oils produce different amounts of smoke. At any rate, 32:1 to 42:1 premix is good with most 2T oils. You can get away with leaner (50:1) with some synthetics intended for lean ratios but otherwise leave it to 32:1 - 40:1 premix. I suggest synthetic in all 2Ts. It's a harsh environment (it's tough greatly overpowering the 4T 50s without a dedicated oiling system). I don't suppose you checked the piston ring end gaps while that was all out or have any idea what the actual compression psi is? You could pull your hair out tuning a carb on an engine that has other problems. The piston rings apear to be good no cracks or wear and the end gaps too, they are very close, can realy be a problem in exaust pipe cogled by carbonization? The carb was cleaned and tuning but in the same bike he only fits there. About the compression i dont have a precision tool to make a avaliation but put my finger on plug bore and moving crankshaft i have a compression but nothing to blowout my finger from hole, if i stop the bike on a ramp and accelerate it take a lot to move. About the time i have until 05/03 to give the bike for my wife, but i think it will be late. About the premix with less oil she works beter, but maybe already have a problem and only apear with correct mix....MAYBE. Sabo. |
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Post by sabotendar on Apr 20, 2014 14:19:40 GMT -6
I have asked Brent from 49ccscoot.com to come and take a look at this. He is the number one expert in this type of engine. Rich A friend told me it can be exaust pipe carbonized but to be honest i don have a clue about that problem. Sabo |
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Post by sabotendar on Apr 20, 2014 7:04:24 GMT -6
The new gaskets arrive and put the all in place now the mix is correct and all decarbonized but i pull the throttle and it takes too long to respond, but walk, and when walking, not doing well, it gets worse when you have a ride with me. Has no leaks in the cylinder and has a good compression. This amount of smoke is good? Is a mix of 40:1 Video of smoke pipe --> smoke
Sabo. |
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Post by sabotendar on Apr 19, 2014 10:32:13 GMT -6
Guys i buy the wires from a guy here in Brazil the wires appear to be good take a look on the photo.  |
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Post by sabotendar on Apr 19, 2014 3:39:25 GMT -6
That's a novel approach Sabo....now go have some quiet time and a nap. And, before you do any more of that type of thing...PM me.  Winky I can do nothing at moment i have to wait the new gaskets arrive to close the engine, but i dont know if it will work, im cross the fingers. I will PM you if i need help. Thanks Sabo. |
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Post by sabotendar on Apr 17, 2014 6:26:22 GMT -6
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Post by sabotendar on Apr 16, 2014 13:01:37 GMT -6
it had compression before and ran so it should after. maybe even better. id keep the mix at 40:1 May the bikes gods bless your words  , i will clean all the parts and try to revome the piston to make a good clean and wait for the new gaskets arrive. I need to put high temperature silicone to have better sealing or just already gaskets is good enough? Sabo. |
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Post by sabotendar on Apr 16, 2014 7:47:54 GMT -6
that pistons awfully scored. wonder if the prev owner ran without oil injection and didnt premix? as long as it still has compression and runs, id let it go but id say your lucky. Maybe the carbonization will caused by me until i make the correct premix! Well have compression had previously not know if it will be after I clean and put in place, the rings appear to be new, the picture is a bit confusing but they shine like new, what did you think? will work after cleaning and putting new gaskets? place your bets!  Sabo. |
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Post by sabotendar on Apr 16, 2014 6:23:52 GMT -6
Good news not have to remove the motor from his place to take out the parts and hey guys i find the problem is high carbonization level:   I dont think the old owner of this bike care about of funcionality, and good care from motor so if this bake is 13 years old she never be clean this is my point of view. The cilinder have high level of carbonization and i cannot remove with tootbrush i'm thinking of leaves dipped in gasoline for a few days until the new set of gaskets to arrive. Sabo. |
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Post by sabotendar on Apr 15, 2014 15:58:56 GMT -6
Yes, and the exhaust to check if the exhaust port is partially block with carbon build up as well. Alleyoop Ok i will check again when i come to home. And just to clarify the oil/gas pre-mix 40:1 is correct? Sabo. |
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Post by sabotendar on Apr 15, 2014 15:41:56 GMT -6
So I do not need to remove the entire cylinder? I think I can remove only the head in case I would only have to change the head gasket? Sabo. |
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Post by sabotendar on Apr 15, 2014 13:32:37 GMT -6
Before you do that make sure you have gaskets or you will have to make your own out of gasket material that you can buy at an auto parts store. Yea if it only smokes like in the picture that is not a lot that is fine. Alleyoop I already bought the gaskets look link -> New gasket  The only way to do this is by opening the cylinder of the motor right? Is not there another way?  Sabo. |
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Post by sabotendar on Apr 15, 2014 7:14:07 GMT -6
Look this photo  She is connected but doing nothing and i dont know if she working too...probably not  With less oil she works better if 40:1 is the correct ratio soo the carbonization is the problem and man i dont whant to remove those screws, to remove the cilinder and cilinder head i have to remove the motor  |
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Post by sabotendar on Apr 15, 2014 4:17:55 GMT -6
When i take the bike the oil pump never work and i think for many years later the oil tank was removed too no sign of automatic injection oil the bike was converted to manual mix before came to me and works well i still thinking i is a bad premix or high carbonization level because she work very well on 4 days after i make experiences with mixes oil/gas. The smoke is too similar to this when I accelerate it lowers slightly.  Sabo. |
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Winky
, i will clean all the parts and try to revome the piston to make a good clean and wait for the new gaskets arrive.
