1450 overhaul - now wont Start

[Daddysignman]

Hey guys i just did an overhaul on my 1450. repainted, new decals (which i make having a large sign and graphics shop), rebuilt carb, new points, new solenoid, new battery, new muffler, new lights, and a few other things i cant think of now.

Well after a long time tracing a short i found one of the connections to the electric PTO was the culprit! took me a week to find it because it was intermittent. Anyways now she cranks over great, i have spark but cant get her running more than a couple seconds. now i cant even get that. I took the carb off again and everything looks good.

Before i fixed the loose wire on the PTO i had it running by jumping the solenoid, now i cant get her running.

Does the adjustments on the carb make that much difference? Any help is greatly appreciated.

here is a before and after pic

[_DX3_]

Just a couple of quick question to think over. Is it getting fuel? Did you set the timing when you replaced the points? The carb adjustments can be pretty critical. When you rebuilt the carb, did you soak the carb in cleaner for a day or so then blow it out with air real good. It's a good possibility you may have some dirt in the carb that is not allowing a good flow.

Here is a list of links also for your 1450. The Kohler manual is listed and tells how to set the carb for initial start and then how to fine tune it.

Quiet Line Links:


Download and print all the manuals;

Carb Rebuilding: http://mgonitzke.net16.net/tools/carb_rebuild.pdf

ISO mount and snubber: http://www.onlycubcadets.net/forum/showthread.php?t=7

Hydro Filters: http://www.onlycubcadets.net/forum/showthread.php?t=12

Ignition Circuit: http://www.onlycubcadets.net/forum/showthread.php?t=27

Ignition Coil: http://www.onlycubcadets.net/forum/showthread.php?t=11

Spark Plug Chart: Use Autolite: http://www.onlycubcadets.net/forum/s...ead.php?t=4638

Static Timing for new points: http://mgonitzke.net16.net/tools/static_timing.pdf

Chassis Service Manual: http://www.onlycubcadets.net/forum/s...ead.php?t=4644

Kohler Service Manual: http://www.onlycubcadets.net/forum/s...ead.php?t=4646

1650 Operators Manual: http://www.onlycubcadets.net/forum/s...ead.php?t=4670

PTO adjustment: http://www.onlycubcadets.net/forum/showthread.php?t=30

Wiring Diagrams: http://www.onlycubcadets.net/forum/showthread.php?t=22

Cradle Mod: http://www.onlycubcadets.net/forum/s...ead.php?t=4630

[metalrain]

I always start with the simple solutions first....i'm sure you checked it, but do you have the fuel shut off valve open on the tank and is it working properly?
I've forgotten to open it a few times and wondered why my nice running 1450 wouldn't stay running.

metalrain

[jbrewer]

Getting Spark? (lay plug on the head and look and listen while you crank)

Getting Gas? (pull plug and look at it, and smell it). Carb adjustments (mixture adjustments) are not critical to starting. If the float is not allowing gas to fill the bowl, THAT could be a problem)

Compression (unless you forgot to install the piston, we'll assume yes!)

Timing - Look here if you have all of the rest....


You'll get it!
John (back to work!)

PS: What happens if you shoot a little gas into the carb throat and then crank...does it fire or no?

[Matt G.]

If you had it running its probably not a compression or ignition issue. Make sure it is getting gas and that the carb is set right. Try 2 1/8 turns on the main jet and 1 3/4 on the idle.

[drglinski]

Yeah carbs can be really picky, with the smallest amount of dirt causing a whole lot of problems. I'd start with checking for that.

[Daddysignman]

Thanks guys for all your help.

I did not have my multimeter so i just did a eyeball adjustment with a digital micrometer and got her to run. She idles well but stalls as soon as i give it any throttle. I tried adjusting the points 10 times with no better results. I cant find the "S" and "T" Matt talks about in his timing pdf.

I also found another issue while letting it run, my hydro lift will not move. It seems like the piston it controls is frozen. I checked the fluid level and it looks to be full and oil looks clean? I tried pushing the piston with a screwdriver.

Here is a pic of the points position and the piston that seems frozen.

[Methos]

Double check your grounds as well. The timing marks can have some light rust on them. Did you rebuild the engine or new points?

[Daddysignman]

i only put in new points. Now i am real worried that the hydraulic lift will not work too.

[ol'George]

The hyd is not hard to fix, if the spool is stuck, shoot penatrating oil on it, give it some time to work, and tap the end gently while holding tension on the actuating lever, just move it a little @ a time and don't get crazy with the hammer you just want to jar it loose. usually they break free easily unless stuck for years.
if all that fails, then you will have to pull the block off and get more agressive getting it to move.