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Author Topic: Methanol.  (Read 3132 times)

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Offline Natroy

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Methanol.
« on: August 20, 2016, 08:40:52 PM »
I was told that you can use methanol in modern dirt track, but not motocross.
I thought you weren't allowed to use it in DT or MX after about 1978.
Will someone set me straight on this?
Thanks.
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Offline Butcher

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Re: Methanol.
« Reply #1 on: August 20, 2016, 10:27:38 PM »
methanol is widely used in modern dirt track
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Offline GD66

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Re: Methanol.
« Reply #2 on: August 20, 2016, 11:23:22 PM »
Dirt Track MOMS Rule 17.14.5.2  :  In addition, for Senior and Classic competition, commercially manufactured pure Methanol with no additives other than lubrication oil may be used.

Also see 13.11.5.1. for classic mx and dirt track  :

 Fuel for all machines must :
(a) Be pure methanol, or,
(b) Be unleaded fuel that is no more than 100 RON etc etc...
« Last Edit: August 20, 2016, 11:52:02 PM by GD66 »
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Nostalgia's not what it used to be....

Offline Natroy

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Re: Methanol.
« Reply #3 on: August 21, 2016, 10:15:13 AM »
Thank you.
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Offline Hoony

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Re: Methanol.
« Reply #4 on: August 21, 2016, 06:25:06 PM »
methanol is finicky to set-up unless you have experience.

unless you know about it be prepared to lunch a few engines till you get it right, this advice was given to me by a renowned tuner in Geelong many years ago when i approached him to do it to my CR250 for Dirt track. i backed away.


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Long time Honda Fan, but all bike nut in general, Big Bore 2 stroke fan.    http://www.youtube.com/watch?v=XJoKP6MawYI
1985 Honda CR500RF "Big Red"
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2005 KTM 300EXC "The GruntMeister" ( I love that engine)

Offline GD66

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Re: Methanol.
« Reply #5 on: August 21, 2016, 08:09:57 PM »
The main thing is, do NOT go lean. Metho will cope with being way too rich and you can work your way down, but never go lean !  8)

Also, if you are getting into dirt track or vintage dirt track, or indeed any race discipline, always a good idea before you cut, weld, assemble or outlay on anything to have a quiet read through the GCRs/MoMS/Rulebook. Far too many folk have ripped into it on an impulse only to depart cursing when things don't suit their ideal vision. Do your homework and it will be a much smoother intro  :)

www.ma.org.au>competition>rules>general competition rules  ;)
« Last Edit: August 21, 2016, 09:15:26 PM by GD66 »
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Nostalgia's not what it used to be....

Offline Bamford#69

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Re: Methanol.
« Reply #6 on: August 22, 2016, 08:35:47 AM »
"Also, if you are getting into dirt track or vintage dirt track, or Classic Motocross, always a good idea before you cut, weld, assemble or outlay on anything to have a quiet read through the GCRs/MoMS/Rulebook. Far too many folk have ripped into it on an impulse only to depart cursing when things don't suit their ideal vision. Do your homework and it will be a much smoother intro ."

 Wise advice , and needs repeating Monthly


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Offline oldyzman

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Re: Methanol.
« Reply #7 on: August 22, 2016, 10:11:55 PM »
Only ever had one bike run on meth (TM250), i was so surprised how cool it ran and also the nice power curve...
Bit painful washing it through with unleaded after use.
Good stuff
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I have a soft spot japanese mxers with aluminium tanks. Two stroke classic Dirt Track...
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