Secondarys - ZR-1 Net Registry Forums

terry mckeown · 09-05-2010

Hope someone can help.
How does one know if his secondarys are opening?
My vacuum pump does cycle on and off when the ignition is on but engine is not running.
When I changed my injectors this spring the left side secondary was not operating very smoothly from the diaphram, lubed it and it was better.
I can't seem to get a better 1/4 mile time than 13.7 sec. Two years ago I could get a 13.2 sec. no problem.
If the vacuum pump is suspect where do I start.
Thanks

09-05-2010	#1
terry mckeown Join Date: Apr 2008 Location: Cambridge, ON. Canada Posts: 14	Secondarys Hope someone can help. How does one know if his secondarys are opening? My vacuum pump does cycle on and off when the ignition is on but engine is not running. When I changed my injectors this spring the left side secondary was not operating very smoothly from the diaphram, lubed it and it was better. I can't seem to get a better 1/4 mile time than 13.7 sec. Two years ago I could get a 13.2 sec. no problem. If the vacuum pump is suspect where do I start. Thanks

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