OzVMX Forum

Clubroom => Vintage Track => Topic started by: jimg1au on January 27, 2015, 09:42:34 pm

Title: dirt track tt500 jetting
Post by: jimg1au on January 27, 2015, 09:42:34 pm

to start with i want to detune my fossil built tt500 methenol burning beast,till i get used to riding it
what petrol settings do you guys use
thanks
jim

Title: Re: dirt track tt500 jetting
Post by: JAP 454 on January 28, 2015, 10:51:51 am

Leave it on methanol, Jim You WILL blow it up on petrol if ya frig around.

Title: Re: dirt track tt500 jetting
Post by: pancho on January 28, 2015, 09:37:56 pm

 The old story, Methanol must not run lean, but it will work up to 30% rich. Petrol has a leeway of about 3%, leaner than that = holes in pistons, richer means runs upta s**7!

Title: Re: dirt track tt500 jetting
Post by: JAP 454 on January 28, 2015, 09:52:38 pm

That's it in one, Wally
Foss

Title: Re: dirt track tt500 jetting
Post by: oldyzman on February 01, 2015, 10:23:06 pm

I agree, my TM seems to be rich on the meth but has more power than the other Petrol TM's so i will leave it alone. U got meth Jim? I have plenty of 20lt drums if u need one... think cost me about $1.20 per litre as I went halves in a 200 litre late last year and straight away decanted into 20's.
Brett

Title: Re: dirt track tt500 jetting
Post by: pancho on February 04, 2015, 04:07:07 pm

Quote from: oldyzman on February 01, 2015, 10:23:06 pm

I agree, my TM seems to be rich on the meth but has more power than the other Petrol TM's so i will leave it alone. U got meth Jim? I have plenty of 20lt drums if u need one... think cost me about $1.20 per litre as I went halves in a 200 litre late last year and straight away decanted into 20's.
Brett

Make sure the 200l is well sealed as methanol attracts moisture out of the air.