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The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> Bike popping and banging
Post Info TOPIC: Bike popping and banging
pug


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Bike popping and banging
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So Bike was running fine end of last year put away for a bit ok 9 months went to get it out for a trip a month back an Houston we have a problem bike was popping and banging I have cleaned the carb fresh and fresh fuel new carb cables new inlet rubber she's still popping and banging the same and wont rev out it feels like it needs to clear its self if you know that I mean what to take apart have a look at next. anyone come across this before because its got me stumped.



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mossproof


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Hate to say it Martyn, but it's highly likely to still be the carb blocked somewhere, unless the mice have chewed through an ignition wire somewhere. Sounds like main jet.

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TTRfan


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I am sure you don't need it Martyn but, just in case. here is my carb rebuild guide - https://ttr250.com/Carb/TTR250_carburettor_strip_and_rebuild_guide.htm

An important step many owners neglect is actually reaming the pilot jet cry

Brian



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Ttboof


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a lazy option i use is splash some injector/carb cleaner in the tank and it may cleanup anything you have missed 



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pug


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Brian carb's been on and off a hand full of times took it and got it sonic cleaned the second time I had it off have replaced the accelerator needle and its rubber thing as that was looking a little tired. Have dropped it into Treens for Steve in there to have a look at they have sonic cleaned it a second time and its still the same now someone said mouse now one thing i have not dun is take the air filter out i did it end of last year before it went away must take a look in there for a mouse nest and chewed foam filter



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TTRfan


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Sonic cleaners are great but I found through experience they will not unclog a blocked pilot jet. Only reaming works.



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Exeter, Devon, UK

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JOHNYBOY


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I BOIL THE JETS IN DETERGENT THEN DROP THEM INTO CELLULOSE THINNERS YOU GAN SEE THE BROWN COMING OFF THEM

WORKS FOR ME EVERY TIME

 



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