1991 Zr-1 Stumbling off idle

[Enginerd101]

Originally Posted by Schrade

Where is OP anyway here?

If he had folded an IgMod pin over, wouldn't that have given him a 16 light right away? He didn't have it at first...

OR... is 16 only lit up in CL?

Irrespective of the 16 code, I'm willin' to wager lunch that he has EXACTLY the same problem, that Marc ID's as a normal glitch, BASED ON HOW HE DESCRIBES THE PROBLEM:

"It idles reasonably smooth..."

"stumble [coming] off [of] idle." .............. not the first time I ever heard of sagging coming off of idle, huh Franke!!!

"It almost seems like it is choking out when you give abrupt throttle from idle up to a little over 1,200 rpm." .............. I don't like the 'abrupt' descriptor...

"Above 2k it seems like it runs ok." ...................... and what about from 1,200 - 2,000 there OP - smooth in that range too - right?

Schrade - It seems to smooth out a bit in the 1,200-2,000 range. By abrupt, i was trying to convey that when you ease into the throttle as if there is a cracked egg under it and you don't want to crack it more it is pretty smooth. Stumbling starts by applying the throttle any more quickly than this i.e. - letting the clutch out and applying throttle to start rolling. I'm not talking about ripping off any 0-60 runs by any means.

CEL is corrected thanks to suggestions on here - folded pin on dis.