Replacing the throttle-body base gasket on 1991 Suzuki Swift

I'm having a little bit of trouble with my Swift/Firefly/Metro. It's the 1.6 5speed sedan, and I get a bit of rough idling, throttle stumble and when I downshift, I get the "BOM-bomomomommm" noise (I have a sports exhaust fitted) that you would usually expect from a rally car or something, but I don't mind that. What I mind is that under gentle or normal acceleration, I get a stumble, as if there's a miss. I Googled it up and found out it is probably a faulty throttle-body base gasket. Is it a simple on/off operation, or is it a bastard to do? PS Not from Massey, MD. In another country.

by in Massey, MD on February 17, 2011
1 answer 1 comment
ANSWER by on February 17, 2011
sorry, all the info we have available is just for USA models which is a 1.3L engine. for that engine, it lists 1.1 hour for the TB gasket.
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COMMENT by on February 17, 2011
Thanks anyway, I should just bring it to my mechanic.
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An engine vacuum leak from the throttle-body base gasket may result in a rough idle and/or stumble on acceleration. If this occurs, replacement of the failed gasket will be necessary.