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Post by tipfinchy on Jul 15, 2018 16:35:06 GMT 1
being that I is daft , is 125 ml of oil per 10L of gas not 80;1 ? 10000 divided by 125 = 80 my cr5 runs 50;1 100ml of oil per 5L of gas so would of thought 125 of oil and 5Lof gas at 40:1 I could be wrong  anyone use Maxima 927?? , I use it on my cr5 , its castor based and supposedly fully bio-degradable (smells nice too  ) |
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Deleted
Deleted Member
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Post by Deleted on Jul 15, 2018 17:31:53 GMT 1
It's easy if you start with the volume of oil first and buy the volume of fuel to match
25 : 1
1000cc oil = 25 litres petrol
500cc oil = 12.5 litres petrol
100cc oil = 2.5 litres petrol
30: 1
1000cc oil = 30 litres petrol
500cc oil = 15 litres petrol i.e. approx volume of an LC fuel tank just after you run onto reserve
100cc oil = 3 litres petrol
35 : 1
1000cc oil = 35 litres petrol
100cc oil = 3.5 litres petrol
40 : 1
1000cc oil = 40 litres petrol
100cc oil = 4 litres petrol
etc. etc.
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Post by headcoats on Aug 7, 2018 9:19:31 GMT 1
Mine is about 33-1
So for 5 litres of fuel I put in 150ML so 10 litres of fuel 300ML
Rounds the numbers up
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Post by chrisg on Jan 5, 2020 15:00:23 GMT 1
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Post by pdxjim on Jan 6, 2020 18:02:24 GMT 1
I do 50:1 premix in my KTM 300xcw.
2.5oz oil to a gallon of fuel.
Easy as. Just get a small bottle with a secure screw-on lid and mark off 2.5oz.
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Post by chrisg on Aug 29, 2020 22:09:19 GMT 1
I do 50:1 premix in my KTM 300xcw. 2.5oz oil to a gallon of fuel. Easy as. Just get a small bottle with a secure screw-on lid and mark off 2.5oz. is 50.1 enough for your bike? sounds a bit low, although if thats what the makers states🤓 |
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Post by pdxjim on Sept 1, 2020 0:37:41 GMT 1
I do 50:1 premix in my KTM 300xcw. 2.5oz oil to a gallon of fuel. Easy as. Just get a small bottle with a secure screw-on lid and mark off 2.5oz. is 50.1 enough for your bike? sounds a bit low, although if thats what the makers states🤓 KTM actually recommends 60:1 for my year 300. The modern injected KTM's average out around 100:1. |
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Post by chrisg on Sept 1, 2020 9:00:06 GMT 1
is 50.1 enough for your bike? sounds a bit low, although if thats what the makers states🤓 KTM actually recommends 60:1 for my year 300. The modern injected KTM's average out around 100:1. Maybe thats down to the modern performance of oils. My wife's car (Volvo xc60) has 0w/20 oil in the engine. I suspect its to aid MPG but I do have reservations about the grade. |
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Post by geoffb on Jan 10, 2021 17:03:00 GMT 1
Lots of info in the threads above but I am still left thinking what is the best ratio for LCs then? 🤔
Back in the 80s I experienced a failed oil pump so ran my LCs on tank mix using Silkolene Comp 2. To save the constant maths I carried a marked bottle and used that at every refuel (you know, when petrol was £1 a gallon!!). I feel like 32:1 was the ratio I went by at the time but now I am doubting myself!
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Post by tipfinchy on Jan 10, 2021 21:15:06 GMT 1
Lots of info in the threads above but I am still left thinking what is the best ratio for LCs then? 🤔 Back in the 80s I experienced a failed oil pump so ran my LCs on tank mix using Silkolene Comp 2. To save the constant maths I carried a marked bottle and used that at every refuel (you know, when petrol was £1 a gallon!!). I feel like 32:1 was the ratio I went by at the time but now I am doubting myself! mine has no oil pump , and run it @ 30 :1 ish mart |
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Post by geoffb on Jan 10, 2021 21:21:38 GMT 1
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Post by Tobyjugs on Jan 10, 2021 21:38:08 GMT 1
My 400 engine is also premix, a pain in the arse but i know the oil i use is excellent quality.
If i'm going for a pootle i try to keep it at 40:1 because the people i ride with complain about the smoke, but if im going for a spirited ride or anything where i'm going to rag it is also mixed at 28:1
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Post by pdxjim on Jan 10, 2021 21:47:15 GMT 1
My 400 engine is also premix, a pain in the arse but i know the oil i use is excellent quality. If i'm going for a pootle i try to keep it at 40:1 because the people i ride with complain about the smoke, but if im going for a spirited ride or anything where i'm going to rag it is also mixed at 28:1 I'm sure you are aware of this, but that wide a swing will alter your jetting significantly. 2x the oil is the same as half the fuel. ... well, not exactly, but you get the idea. |
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Post by Tobyjugs on Jan 10, 2021 21:58:38 GMT 1
My 400 engine is also premix, a pain in the arse but i know the oil i use is excellent quality. If i'm going for a pootle i try to keep it at 40:1 because the people i ride with complain about the smoke, but if im going for a spirited ride or anything where i'm going to rag it is also mixed at 28:1 I'm sure you are aware of this, but that wide a swing will alter your jetting significantly. 2x the oil is the same as half the fuel. ... well, not exactly, but you get the idea. Yes your right Jim. It doesn't really bother me and i can just about notice it. It runs a little bit more fluffy in the lower rpm and throttle at 40:1. Mostly it's used at 28:1 ratio and thats were i adjust the carbs. I ride my bike the whole year around and on average adjust the carbs twice a year unless its really hot weather. |
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zebec
L plate rider.
Posts: 22
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Post by zebec on Jan 17, 2022 12:23:31 GMT 1
Thanks, for a very useful post  |
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