Starting issue

[Toyvet1]

Lee, All the same spring same issue with my79, clutch saftey switch, all the same symtoms. Hot wire the swith and havent had a problem yet.

[XfireZ51]

Originally Posted by Toyvet1

Lee, All the same spring same issue with my79, clutch saftey switch, all the same symtoms. Hot wire the swith and havent had a problem yet.

I did that when I first got my 92. Intermittent starting. I figured it was the clutch switch because i could pump it a few times and then it would catch. Now I have it shunted with a jumper wire I made.

[scottfab]

Originally Posted by LGAFF

Scott by volatage drop I am referring to the fact that when you turn the key volts drop on the dash

On the next "no start"......
Measure it right on the battery both from the frame rail AND the battery neg to pos post as the key is turned to start. If those don't drop bellow 11.5V or so then proceed to look into the clutch switch. (that is if the security light is not flashing).
If necessary bypass the clutch switch temporarily for testing but get it replaced if it's the problem. (safety issue) From there just make sure to fully depress the peddle before turning the ign switch and you'll not see the issue again.
Keep in mind, by far the most common "no start" issue is a tiring battery. Whereas in most cars a "soft" battery is tolerated, not so in the ZR-1.
Good luck. Intermittent issues are by far the worst.