can I get a copy of the vacuum system routing diagram for a 1988 Accord DX (which is normally pasted inside the hood but my copy is missing). 2.0L engine, carbureted. (I have one for my 1985 and it is very clean and easy to follow)

Optional Information:
1988 Honda DX 2.0L

Already Tried:
I have not tried anything yet but the (highly intermittent) car symptoms are as follows (it has done this 3 times in the last year with no pattern as to when):

1.) starts and warms up just fine
2.) about 10 minutes after startup suddenly exhaust reeks and car dies.
3.) try to restart and can barely get restarted after cranking for a minute solid and have to have gas pedal to the floor, typically just barely firing on one or two cylinders only.
4.) keeping pedal to the floor it will eventually suddenly rev way up after maybe 30-45 seconds.
5.) but will only keep running if you keep RPMS racing above 2000, which I can do since it is a clutch. If it drops below this speed it will quickly die again and then you have to restart like in step 3.)
6.) even at that to keep it running you have to keep pumping the pedal, as though most of the running is coming from dumping in lots of gas via the accelerator pump. Not pumping the pedal every couple seconds and it will die regardless of RPMs.
7.) let it completely cool down and it starts beautifully and runs fine


The plugs have always suggested it is running too lean anyway as several have consistently been whitish over several plug changes, not greyish/brown like my 85 Accord which runs fine. Idle has always been rough and I have suspected a vacuum leak but have spent much time spraying propane and cannot find anyplace where the idle RPMs go up except when I point the propane toward down the carb barrels.

So I have concluded it is borderline too lean anyway and that the consistent 10 minute time is due to one of the thermovalves opening and somehow air control valves A or B dump lots of air in thinking it is too rich. This leans things out way too much to where it will not run unless the the throttle is so far open and so much airflow is coming in through the normal carb barrel route that the effect of the extra leaning from air control valves A or B is diluted enough that the mixture is back close to normal.