Small backfire through carbs

[markycee]

Hi All,

Changed carbs on my VTR recently due to problems at High Revs and since then everything runs like a dream.......apart from..a slight backfire through the carbs. Generally it pops now and then (usually at traffic lights) or if blipping the throttle (hot or cold). Any clues anyone? It's not majorly bad and you can barely hear it through the airbox with helmet on etc, but it's there and buggin me! Is it worth playing with fuel mixtures? It didnt backfire with the previous carbs and I have rechecked vacuum pipes and made sure the carbs are seated properly and clips tightened okay. Like I say, apart from the odd pop, it's a s smooth as anything and bundles of power right through the rev range since I changed them. P.s Anyone know what sort of MPG range these bikes get. I reckon I'm getting 30 mpg thrashing about round town. Is that normal?

[tony.mon]

Coughing back through the carbs is normal, loads of threads in workshop section about this.

Mileage?
Some guzzle fuel, some don't, seems mostly down to riding style and engine setup.

[markycee]

Tks tony. It's what makes this forum so good. U saved me a load tinkering! I should be good to go now.

[benny hedges]

turn the idle speed to 1500 and it wont bother you again.
mine coughed and stalled on me while i was leaned round a slow roundabout.
new pants moment, footdown peg legging it to keep it upright

[Furrybiker]

"Thrashing about town" got me 3 points and a £60 fine! I would rather the 30mpg