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Sep 10

Posts: 51

southy1981 says:

Yamaha T Max 500

Hi, Just a quick one if anyone can help.

Riding home yesterday i stopped at a petrol station i use frequently.
Went in and paid, came out, key in, ignition on, dials did the little dance, pulled brake in, thumbed the starter, nothing, didnt even turn over.
I remembered reading in my owner manual, that electrical interference can mess with the immobiliser, so wheeled it around the corner and tried again, nothing.
Getting a little bit annoyed, i sat there looking at it, and tried again, i pulled both brake levers in as hard as i could and it started.

Still thinking interference was the cause, i rode home.
Came out the next day, and it did it again. But pulling both levers hard got it going again.

Now i believe that the switched that activate the brake light could be a little bit tempremental, so removed the rubber gromit that covers them and gave them a liberal coating of GT85 and worked them a little bit.
I have not had a chance to test this fix but will in the morning.

Just wondered if anyone else may have some input as to what i could or might be??

Have thought about using one of the other keys i got with it (the black one, not the red one) just to see if the one i am currently using might be a bit on the tempremental side!!

Many thanks


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  • Posted 196 days ago (04 March 2014 16:35)

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Mar 09

Posts: 8924

jaffa90 says:

safety switches

That happened to me on my suzuki, my fault (age thing) forgot to pull the clutch before pressing the button. I would check or bypass that switch (temp). Also I`ve never heard of a brake safety switch but check that.

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Jan 08

Posts: 7521

kcmc says:

Yamaha T Max 500 year?

Hi Southty1981

As with most rev and go bikes the brake has to be applied to start the engine(this is a safety device)some only one lever pulled some both,with the T-Max can't remember but the problem lies here,you will need to replace the brake light switch activating switches which are both located under both switch gear brake lever assemblies(they are handed R/L).Its a commen problem especially on cheaper model rev go scooters,once water has got inside there usually doomed:upset:you can join the wires together on the faulty switch to get yourself going,but remember this is also the brake light so if you leave it connected the brake light will now stay on permanently(don't touch the live to earth or you will blow the brake light fuse,and the bike wont start coz you then have broken the start circuit.(no alien or cosmic interference am afraid:lol:)

Good Luck


The switch you need below


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