Clark C500Y60:
C500Y60 Fuel issue

We picked up this lift about 6 months ago, had a new model J regulator and CA100 mixer I put on, it would start and idle okay, but it smelled very rich but needed choked to run anything over idle, if you didn't choke it and gave it throttle it would just fall on its face and die. Even running choked the engine didn't have much power, it is a f245 continental. since then it has new LP hoses and I installed another mixer and a newer cobra regulator/vaporizer. as well as a new lock off valve and new propane tank. Still smells rich but needs choked to run anything over idle, even at idle it helps to have the intake almost completely covered. I did set the valves, checked compression, all the holes were 110-135. valves all moving. Any help would be appreciated.
Ryker
  • Posted 15 Sep 2017 01:49
  • Discussion started by ryker_c
  • Iowa, United States
Showing items 16 - 30 of 41 results.
I cant say for sure, Ill have to look. i want to say blue... iil check that out. Thanks!
  • Posted 16 Dec 2017 03:31
  • Reply by ryker_c
  • Iowa, United States
Do you know what color spring is in the Regulator? There are two different ones. Orange is for the bigger engines and blue is for the four cylinder engines if I remember correctly.
  • Posted 4 Nov 2017 06:29
  • Reply by BREWSKI
  • Nebraska, United States
OK I have readings on the exhaust now, no numbers on hand, yet aw at the shop, the carbon monoxide was wayyyy to high.
  • Posted 4 Nov 2017 02:24
  • Reply by ryker_c
  • Iowa, United States
No update as of yet, have the lift cylinder off to be resealed. it is running much better now, but still wants choke to run the best, it uses a bunch of propane either way. Thats about all i can say as of yet.
  • Posted 18 Oct 2017 06:04
  • Reply by ryker_c
  • Iowa, United States
What's the word? Whatcha find?
  • Posted 12 Oct 2017 00:43
  • Reply by bbforks
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!
Ok I tried the ignition resistor, made the spark weak and irratic. Wouldn't start. Took it out and it is normal. With the EV1-14 diaphragm in it, it runs somewhat better. Have the mixer on the "R", it still smells rich but it will not run as well if you lean it out. We have an analyzer for the exhaust but it needs recalibrated. When that is done I'll see what it says
  • Posted 28 Sep 2017 03:35
  • Reply by ryker_c
  • Iowa, United States
The PN on the diaphragm I have with a number is EV1-14
  • Posted 28 Sep 2017 02:49
  • Reply by ryker_c
  • Iowa, United States
None taken, points are just what I had readilly available.
I do have another diaphragm with a number on it, i'll put that in so i know where to start.
Back to the points that is all I have ever delt with.
  • Posted 28 Sep 2017 01:03
  • Reply by ryker_c
  • Iowa, United States
No numbers on diaphragm. I had one like that once it would flood the room with c o.
Av1-14-2 or av1-14-4 (silicone) is what I sell 99% of the time. Av1-14 and av1-14-3 (silicone) are richer.
No disrespect but are you good with points? Magnetic pick up is so much easier. The dwell can really throw your timing off.
  • Posted 27 Sep 2017 21:29
  • Modified 27 Sep 2017 21:30 by poster
  • Reply by stam
  • Ontario, Canada
Nothing starts to look frosty, no. I'll get an ignition resistor and see what thatll do, double check the spark too. Thanks
  • Posted 27 Sep 2017 01:08
  • Reply by ryker_c
  • Iowa, United States
Make sure during cranking you get a bright blue spark that can jump at least a 1/4"

I just re-read the blog & see you don't have an ignition resistor. I'd source one from a local auto store & temporarily install it in the power line to the coil to see if it makes a difference.

If you start the lift & slightly raise the rpm to where the engine seems to lean out & you keep the rpm there for a few minutes does any part of the lp system start to look frosty?
  • Posted 26 Sep 2017 03:25
  • Modified 26 Sep 2017 03:38 by poster
  • Reply by bbforks
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!
Oh, also, it did have an electronic ignition when I got it but I had no spark. I went back to points. The name on that electronic IG was "perlux".
  • Posted 26 Sep 2017 01:55
  • Reply by ryker_c
  • Iowa, United States
Ok I have the bottom of the mixer off, I see no number on the diaphragm.

It does have a new ignition coil. I'm not sure if it has a built in resistor or not, it doesn't have an external resistor. I do have good spark now and it runs much smoother. Still just will not run anything over idle without partially covering the intake. It will idle without that but it idles nicer if you do partially cover the intake.
  • Posted 26 Sep 2017 01:53
  • Reply by ryker_c
  • Iowa, United States
Sounds like an ignition issue. Where'd you source your ignition parts? Is the spark bright blue & can the spark jump at least a 1/4" gap? Also- was the ignition coil changed? If so, does the unit have an ignition coil resistor or a coil with a built in resistor? If there's an external resistor- make sure the coil doesn't have a resistor built it. Does the unit still have points or was it converted to electronic with a pertronix unit?
  • Posted 26 Sep 2017 00:00
  • Reply by bbforks
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!
Having it on R helps it, but still isn't quite enough. Take the bottom of the mixer off and check out the diaphragm?
  • Posted 22 Sep 2017 10:09
  • Reply by ryker_c
  • Iowa, United States

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