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Fuel and Oil Ratio Guide


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#1 Monstrous

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Posted 18 August 2006 - 03:21 PM

Right everyone has differing opinions of what mixture is best for your engine, so here's a simple guide if you are unsure, these aren't the only mixtures you can use but are the most popular

25:1 - 200ml oil : 5 litres of fuel
Richer setting, best for breaking in an engine, but can be used for normal running, will keep your engine alive for years

32:1 - 150ml oil : 5 litres of fuel
Intermediate Setting, probably the most common amongst the everyday basher, slightly more lean than the 25:1 so will give you a bigger bang and some more rev's, but also has enough oil to keep your engine well lubricated and working smoothly

40:1 - 125ml oil : 5 litres of fuel

Leaner setting for higher performance and higher revs but lower oil content, it won't cause your engine to explode but it will have a shorter lifespan than one running at 25:1.


You don't have to stick to these mixture's, you can try in between ones such as 36:1 which is 140ml of oil to 5 litres of fuel etc. I wouldn't suggest going beyond 40:1 though as the low oil content could shorten your engine's lifespan considerably

Monstrous

#2 Havoc87

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Posted 31 October 2007 - 07:32 AM

Found this V.helpful was a little confused as in my instructions it said use a 25:1 ratio - 5 litres fuel and 250ml oil ? So its only 200ml I should be using?

Gonna run it for the 1st time today, need to get the know how lol

:)

#3 4x4 freak

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Posted 19 November 2007 - 03:24 PM

Hello,

Can you use more Oil to make the Engine last longer?

Say 225 or 250ML to a Gallon of Fuel?

Or will this start killing Plugs?

I thought 25-1 was the Normal running about setting but seams you can go alot leaner,

All the FG and MCD i have seen round Deerdale Dont hangabout at all, And there running 25-1, So if they could go Richer to save it even more without killing Plugs it would be a Bonus,

:good:

Cheers,

Philip.

#4 staffy

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Posted 09 March 2008 - 08:11 PM

thanks for this info was just goin to put a thread askin this!
just bought my first 1/6 buggy but it had no book with it so is there any tunin tips or should i just run it as it is????

#5 pipcars

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Posted 03 July 2008 - 07:17 PM

Here is a good link to a chart for you ;)
http://www.rctek.com...ratio_chart.pdf

#6 2OLD2RAVE

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Posted 01 June 2009 - 04:28 PM

top info , ive been running 25, to 1 for a while now may change just to get that bit extra

#7 Noodle ED

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Posted 01 June 2009 - 05:20 PM

View Post2OLD2RAVE, on Jun 1 2009, 06:28 PM, said:

top info , ive been running 25, to 1 for a while now may change just to get that bit extra


Found this quite usful other day while browsing

http://www.csgnetwor...ilfuelcalc.html

#8 CornwallRC

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Posted 13 August 2009 - 03:58 PM

Great, helped me out. :)

#9 Topper

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Posted 19 August 2009 - 01:13 PM

Thought this might help a few people out  ;)

25:1


Posted Image


32:1


Posted Image

#10 gazza227

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Posted 11 September 2009 - 11:42 AM

Hi guys, try and use full synthetic oil,i know its a bit more expensive but your engine will run cleaner and engine will last longer over mineral based oils.. hope it helps..

#11 savage-rage

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Posted 11 September 2009 - 11:54 AM

and wich type of 2t oil to use Posted Image

#12 gazza227

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Posted 11 September 2009 - 12:03 PM

View Postsavage-rage, on 11 September 2009 - 11:54 AM, said:

and wich type of 2t oil to use Posted Image


castrol xr77 £17.00 for 1 litre or castrol r2 racingbike 2 stroke 1 litre £15.00

#13 Topper

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Posted 11 September 2009 - 12:14 PM

That's expensive   :confused:

Castrol TTS £11.99

#14 gazza227

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Posted 11 September 2009 - 12:22 PM

View PostTopper, on 11 September 2009 - 12:14 PM, said:

That's expensive   Posted Image

Castrol TTS £11.99


halfords do one for £10.99 full synthetic 1 lt

#15 Familia323

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Posted 13 October 2009 - 10:35 PM

will the oil fuel mixture cause your car to run lean or rich cause i seem to be having problems with tuning my carb.




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