1987 Honda CRX ignition timing and mpg?

1987 HONDA CRX
187,000 MILES • 4 CYL • 2WD • MANUAL
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NEO4203
  • MEMBER
  • 4 POSTS
hey, i have been trying to set the ignition timing on this carborated 87 crx. I have two conflicting views on how to do this, weather or not to disconect the vacuum advance. when i do dissconect it and set the timing at idle, as soon as i re connect it it advances the timing, is it suposed to do this at idle? or do i need to set the ignition timing with the vacuum advance hooked up? Also the car should be getting great gas milage, but i am bearly getting 160mi to the tank? i am wondering if this is related to the timing, or maybe a worn carb, it has all new fuel filters, air filter, fuel lines and fuel pump.
Sep 25, 2010 at 10:22 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
The ignition timing should be set with the vacuum advance disconnected. Make sure to plug the hose so the engine continues to run smooth. Also, it is normal for the timing to advance when you hook up the advance.

That is bad MPG. Try the timing first. If that doesn't help, then a tune up may help.

Let me know.

Joe
Sep 25, 2010 at 11:55 PM
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