Possible blockage in the carb, assuming your Sporty has a carb.You say its a 1997 sportrack 1.6 so I assume its not an injection model.

I would try creating a vacuum at the carb. This method was/is well know to older diy mechanics.
1. Remove air filter and get 'direct' access into the air intake.
2. Run engine at high revs and keep it high!
3. Hold a clean cotton cloth [no fibres] over the inake to create a suck/vacuum inside the air intake. You will need to fold the cloth into a thick pad. Obviously dont let the cloth become sucked into the air intake. Try not to stall the engine.
The created vacuum often sucks any dirt out from the jets.

If that fails then use 'Redex' additive or another additive into the fuel. You can pour/drip some redex or clean engine oil [redex is best] directly into the carb whilst the revs run high - dont stall the engine and no blocking the air intake. You will hear the engine gulp at the mixture. Let it 'tick over at highish revs' for 20seconds, then rev the engine. The exhaust will smoke like a chimney until the oil gets burned away. The process cleans and lubricates the carb.
If the engine stutters to a halt you might need to remove and clean the plugs -- usually it will crank over and refire without cleaning the plugs.