A forum for owners of Yamaha TTR250 trail and enduro bikes!

The Drifter · Veteran Member

Can Anyone help ??? TTR dying under power.

TTRfan · Super Guru

RE: Can Anyone help ???

chrisstdt · Senior Member

If it was very wet its possible the ignition system has got wet and may need dried out ? so look at plug / lead and work back from there

If you werent riding through deep water the carb should be fine

TTRfan · Super Guru

RE: Can Anyone help ??? TTR dying under power.

The Drifter · Veteran Member

Thanks guys don't think its carb as that's been drained as regards ignition starts okay its just when I try to apply power with the throttle, when its on idle ticks over fine but if I turn throttle for power that's when I have problmes.I will get it sorted I suppose before Easter hopefully and I cant complain its the first problem I have had since purchasing it from this site about last July.

chrisstdt · Senior Member

Id try saking everything electrical with duck oil / wd40 or similar with the engine cold and if that doesnt sort it try the same with the carb rubber etc with engine running to try and rule that out

Dropped mine in a river yesterday and it didnt run right for a while till it warmed up ,i cover mine with a duck oil / engine oil mix after every ride for this reason ,wd40s only good for making your plastics shiny wink

Also brian may be onto something with the fuel cap breather i had that problem with an old honda bigred work quad (i used to be a shepherd) it would run for 2-3 hours then cut out and wouldnt run till you opened the fuel cap and the tank wouldnt suck in as it was steel just like a white OE TTR !

-- Edited by chrisstdt on Monday 7th of April 2014 10:18:53 PM

chrisstdt · Senior Member

Just thinking out of the box here ,has the bike got the standard switch on the side stand ? as they wont rev if the switch is telling the bike the stands down

-- Edited by chrisstdt on Tuesday 8th of April 2014 03:05:50 PM

fast fazer · Member

Wouldn't hurt to remove the tank and check the electrical connections under there.

Unplug any multi plugs and check / clean the connections inside, apply a smear of silicone grease to the connectors when reconnecting.

May be worth changing the spark plug if you don't know how old it is.

Regards, ff.

The Drifter · Veteran Member

You guys are so helpful but I have done everything suggested and still no joy , come weekend when I am off I will have more time to delve a little further.

Hp · Veteran Member

Start simple matey, that side stand switch is a pain in the arse. If you get stuck drop me a line and put the kettle on :)

TT-R250M · Super Guru

Have you checked that the accelerator nozzle isn't blocked and squirts fuel when the throttle is applied?

All TTR250 carbs are interchangeable with any TTR250.

If you describe your problem better, maybe I can help more but I need more info on the problem.

Jarrah

The Drifter · Veteran Member

Hp wrote:
Start simple matey, that side stand switch is a pain in the arse. If you get stuck drop me a line and put the kettle on :)

Thanks buddy I will have a better look Saturday Morning when im off but I cant explain any better than I have I apply throttle engine just dies when on idle its fine everything checked as suggested.maybe jets need replacing ???