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Post by geh3333 on Jun 12, 2015 19:42:10 GMT -5
To be honest , I never ran at 7000 rpms on a whole tank , and I still average 60 mpg , so let's do this again , but we'll take an average rpm . I'll do 5,500 rpms . so 5,500 rpms × 60 is 330,000 ÷ 4 is 82,500 ignition strokes. So 1.21212121×10(-5) which is 0.0000121212 gallons which is .00155 ounces which is .0458 ml being burned each ignition stroke. Well I'm not going to check your math, But Very Nice! Calculators are a godsend !, lol
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Post by geh3333 on Jun 12, 2015 19:40:51 GMT -5
(Edit) please skip this post !!! 14.7 lbs of air is needed to burn 1 lb of gasoline , so here we go I think you need at least .000355713 lbs of air . so .0916 ml of gas and .000355713 lbs of air every ignition or .161 grams of air . I just need to know how much room that takes up.
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Post by geh3333 on Jun 12, 2015 19:16:51 GMT -5
I'll give it a shot
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Post by geh3333 on Jun 12, 2015 19:15:50 GMT -5
Well I did some numbers and found that my scoot is burning on average of about .0916 ml every ignition stroke. So I guess at least this much fuel is entering the chamber on each stroke before ignition. Now of someone can find out how much air should be entering that would be great !
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Post by geh3333 on Jun 12, 2015 19:09:23 GMT -5
Go for it , lol. That's what I would try. You of course will have to adjust the air fuel again , but it may be fine.
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Post by geh3333 on Jun 12, 2015 19:08:09 GMT -5
To be honest , I never ran at 7000 rpms on a whole tank , and I still average 60 mpg , so let's do this again , but we'll take an average rpm . I'll do 5,500 rpms . so 5,500 rpms × 60 is 330,000 ÷ 4 is 82,500 ignition strokes. So 1.21212121×10(-5) which is 0.0000121212 gallons which is .00155 ounces which is .0458 ml being burned each ignition stroke.
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Post by geh3333 on Jun 12, 2015 18:57:31 GMT -5
Ok we have 9.52380952×10(-6) equals. 0.0000095238 gallons per ignition stroke. I, think that's right. .00121 ounces of fuel per ignition stroke. And .0357 ml . man that seems like a small amount . So let's times .0357 x 105,000 which would be 3,748.5 ml which would be .99 gallons . so that must be correct.
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Post by geh3333 on Jun 12, 2015 18:54:15 GMT -5
Ok we have 9.52380952×10(-6) equals. 0.0000095238 gallons per ignition stroke. I, think that's right. .00121 ounces of fuel per ignition stroke. And .0357 ml . man that seems like a small amount .
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Post by geh3333 on Jun 12, 2015 18:40:37 GMT -5
Let's say I get 60 miles per gallon . and I ride at a steady 7000 rpms . right now I'm running at 60 mph at 7000 rpms , so I should burn a gallon of gas in 1 hr. The scoot fires every fourth stroke , so we take 60 × 7000 which equals 420,000 rotations in 1 hr. 420000 ÷ 4 equals 105,000 ignition strokes. Now we take the number of ignition strokes and break a gallon down into 105,000 parts which would be ? I'll have to think about this one , lol
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Post by geh3333 on Jun 12, 2015 18:31:15 GMT -5
I believe scoot was right on. If we each wanted to know how much if being burned in our head and cylinder , all we would need to do is measure a certain amount of fuel out , run it through the scoot at a certain and steady rpm for a certain amount of time . measure how much fuel was used , figure how many ignition strokes were made. Take the amount of fuel used and divide that by the number of ignition strokes, and we should have the amount being burned at each ignition stroke. I think I have that right.
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Post by geh3333 on Jun 12, 2015 17:08:11 GMT -5
I've had to run red lights on many occasion , they just don't seem to pick the scoot up.
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Post by geh3333 on Jun 12, 2015 15:42:28 GMT -5
Any performance gain? I know removing the same system on a car equals more power, same effect on a scooter? No emissions where I'm at. I have removed the emissions on my scooter as well, other than having to adjust the carb, due to no longer having un-burnt fuel recycled, I have seen no improvement in how my scooter runs. May be wrong but I don't think these scooters are producing enough power for any difference to be noticeable. I sort of think the opposite about these scoots. They produce so little power ,that the littlest things make a big difference. For instance , if you crouch over while riding these scoots , you gain a good 3mph or more . sometimes if I'm riding into a strong head wind I have a hard time going over 60mph , but if I crouch over I'm able to reach a much higher mph due to not only lest wind , but the ability to reach a higher rpm. Same with weight , 40 lbs on these scoots makes a noticeable difference . if you were riding a 600 cc bike , these things would not be as noticeable. Another problem is that many of us end up running these scoots all out , to the point that it just won't go any faster. These engines are not powerful enough to reach 90mph so we top them out easy , and thats why the smallest things make noticeable changes. Just like colder weather , yes it effects all vehicles , but with these scoots you may pic up a couple mph on the top end , but when it comes to a bigger cc bike , you may not notice the better performance because your usually not topping the engine out and you can hit 100+ in cold of hot weather , and if your not looking at ht rpm gauge with a microscope , you may not notice it was easier to hit 100+ mph. Now when it comes to removing all of the emissions , you can usually tell a difference , unless your not tuned properly afterwards. It may not be much , but there is usually a difference in performance.
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Post by geh3333 on Jun 12, 2015 15:24:28 GMT -5
Update I have not removed my carb yet but did just richen the a/f up a half turn and the bogging got less, so will try a little more and see if I can get rid of it that way, but will still be tearing the carb down this weekend and moving the needle, and then re-adjust and see where I am, and if I need to go up to a bigger main jet. Now when I richened the mixture I had no change in idle rpm, but it did help with the bog. That's perfect . I still think the 106 is possibly too small. I'd at least put a 108 in there.
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FFWWAOOOMP!
by: geh3333 - Jun 12, 2015 15:22:13 GMT -5
via mobile
Post by geh3333 on Jun 12, 2015 15:22:13 GMT -5
how hard is changing the pump? how did you test it? To test the oil pump , remove the valve cover ,and start the scoot. You will have oil being pumped to the top of the rocker arms and the cam . maybe lay a towel down under the scoot. It only takes a couple seconds to see if its working, then shut her down to avoid a mess. I actually tucked a towel between the bottom of the head and the cooling shroud , so no oil ran down in the shroud.
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FFWWAOOOMP!
by: geh3333 - Jun 12, 2015 15:20:29 GMT -5
via mobile
Post by geh3333 on Jun 12, 2015 15:20:29 GMT -5
how hard is changing the pump? how did you test it? To test the oil pump , remove the valve cover ,and start the scoot. You will have oil being pumped to the top of the rocker arms and the cam . maybe lay a towel down under the scoot. It only takes a couple seconds to see if its working, then shut her down to avoid a mess.
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