pjsmetana
Jedi Warrior
Offline
I got one of these on my 1500. I did a few archive searches and found
the Weber Troubleshooting Guide
https://www.webercarbsdirect.com/v/vspfiles/images/Weber%20Trouble%20Shooting%20Guide.pdf
and a site with Weber Carb setup and idle adjust
https://www.carburetion.com/Weber/adjust.htm
But what I didn't find, was anything to do with choke cable adjustment or much to do with vacuum.
This is my 1st engine with a manual choke, and also my 1st Weber carb. So, I can't say I know much about it at all right now.
The issue is, when warm and at idle, I have to keep the choke cable pulled out about the thickness of a nickle to keep the idle at 800ish RPM and fairly smooth. It runs like a scared cat like this till about 4500 RPM then there's a nice little power drop off. I have not taken it over 5000 RPM, not that I really want to, just thinking of things that may help figure out my issue. If I push the choke cable all the way in it Idles about 600-700 RPM and really really rough, but does not stall, and is still great on throttle response. Following the Weber Trouble Shooting Guide, it talks about vacuum being the problem. I've never had any automatic tranny cars, any vacuum retard/advance distributors, or really anything that had much to do with vacuum. My previous VW engines all had centrifugal advance dizzys and temp controlled chokes, and all my Honda's were FI and electronic/computer controlled.
Anyways, I guess this is a 2 parter. Can someone school me, or point me to what to read on vacuum... and is it possible that my choke cable is pushing the choke back to partially closed when all the way in, thus only needing a minor adjustment?
I suppose if I was home I could go out and play with all this stuff hands on, but bored times call for lots of reading and the mind wonders.
Btw, I have no idea what cam is in this thing and the PO didn't either.
Thanks guys!
the Weber Troubleshooting Guide
https://www.webercarbsdirect.com/v/vspfiles/images/Weber%20Trouble%20Shooting%20Guide.pdf
and a site with Weber Carb setup and idle adjust
https://www.carburetion.com/Weber/adjust.htm
But what I didn't find, was anything to do with choke cable adjustment or much to do with vacuum.
This is my 1st engine with a manual choke, and also my 1st Weber carb. So, I can't say I know much about it at all right now.
The issue is, when warm and at idle, I have to keep the choke cable pulled out about the thickness of a nickle to keep the idle at 800ish RPM and fairly smooth. It runs like a scared cat like this till about 4500 RPM then there's a nice little power drop off. I have not taken it over 5000 RPM, not that I really want to, just thinking of things that may help figure out my issue. If I push the choke cable all the way in it Idles about 600-700 RPM and really really rough, but does not stall, and is still great on throttle response. Following the Weber Trouble Shooting Guide, it talks about vacuum being the problem. I've never had any automatic tranny cars, any vacuum retard/advance distributors, or really anything that had much to do with vacuum. My previous VW engines all had centrifugal advance dizzys and temp controlled chokes, and all my Honda's were FI and electronic/computer controlled.
Anyways, I guess this is a 2 parter. Can someone school me, or point me to what to read on vacuum... and is it possible that my choke cable is pushing the choke back to partially closed when all the way in, thus only needing a minor adjustment?
I suppose if I was home I could go out and play with all this stuff hands on, but bored times call for lots of reading and the mind wonders.
Btw, I have no idea what cam is in this thing and the PO didn't either.
Thanks guys!