Backfiring at carbs

[SilverBullet]

When I installed the 48idfs when new, idle was ok, but after a few days of driving, the carbs are backfiring! Could the idle jet be too small as I've maxed out on the present idle jet. Help?

[70Ghia]

Silverbullet,
Try this website, it might help.
I had the same problem too.
My friend Steve at Wolfgang Int. helped me out over the phone. Make sure the your linkage is set right after syncro is done. I know that every engine is different, Like mine is a 2.4ltr, 175hp and I'm tunned for Germany.

Good luck
Chris

AircooledVWAddiction.com- (Weber IDF tuning tutorial)

[SilverBullet]

Thanks Chris. Appreciate it alot.

[Bad bug]

70ghia what is the torque like on your motor. How fast have you driven your car.

[coffinator]

silver,
Is it backfiring throush the carbs? If so I would say your mixture is to lean. If it backfires through the exhaust then your mixture it to rich. try that and see what you get.

mike

[SilverBullet]

Thanks Mike, I've tried to make rich the idle jet as backfire when idle, but still there, I'll try larger jets.

[mikko k]

Probably your flaps are a bit too much open. Close them a bit and open the pass by screws at the side of idle screws. About 1/2 turn to open should make a differens. Also the carbs sync have too be well done. Use air flow meters to do it.