Posted November 22, 2014 - 10:56 PM
Posted November 22, 2014 - 11:18 PM
just setting the points with a filler gauge you can get it close
Have checked the timing with a timing light?
with a timing light you can see how close the points are set
the closer you get to the S on the flywheel the better you are
once it is close as you can get it and it still not at normal slow idle check the throttle shaft for play.
if you can move it. that is were you have a vacuum leak.
I remove the throttle shaft and put in 2 bronze washer (thrush bearings) 1/4" id and 7/16" od and put a little gasket sealer in before I put the bronze washer in.
and put throttle shaft back in and I was lock washers on the screws the the butterfly
I have seen O-rings in several carbs that where I put the bronze washers - which can help too
Edited by lyall, November 22, 2014 - 11:20 PM.
Posted November 23, 2014 - 01:12 AM
Posted November 23, 2014 - 06:31 AM
Is the carb on the Kohler also a Walbro by chance?A Kohler with a Walbro carb will not idle down very far before it stalls out.If you want a slow idle on a Kohler use a Carter #26 or #30.
I've also noticed with the Walbro carbs on a Kohler that it will try to stall out if taken over rough ground.I hate all Walbro carbs.Even the one on my H50 tecumseh re-powered craftsman rototiller is giving me a headache.About to spend $25 on it and give one of those cheap Ebay carbs a try.
I tried heat on a couple that was really messed up and ended up warping the carb and it was Still plugged up.
Best thing to do is grab a cheap Torch Tip cleaner kit and go through all the holes in the carb with it.Then spray some good Carb cleaner through every hole to clean out any leftover deposits.
Torch tip cleaner has barbed File like wire in many different sizes.Works very good for cleaning carbs and you can Slightly enlarge the holes on the idle circuit to help prevent future blockages.Remember the Idle jet is Adjustable so you can always adjust it afterwards.
Posted November 23, 2014 - 08:43 AM
Have you got the float set exactly perfectly right. Those Walbro carbs are very sensitive to that.
Posted November 23, 2014 - 09:00 AM
Posted November 23, 2014 - 09:04 AM
For the HH100, the idle circuit may well be blocked still. The Walbro LME carb is not very easy to clean and sometimes the main nozzle has to be unscrewed to clean out the fine hole that supplies the idle circuit. If that nozzle is removed then the threads over the hole must be filed away before it can be put back, but this is not difficult to do if you mount the nozzle on a close fitting piece of steel with superglue and turn it in a dremel.
breimer, there's probably your problem right there. Most of the time Walbro LMG, LMB, and LME carburetors have to have that nozzle removed and the ports cleaned around it if you want a slow idle.
The original nozzle was installed before the power hole was drilled out. The replacement nozzles "service nozzles" have that slot cut in them so the engine will run!
Posted November 23, 2014 - 08:14 PM
Posted November 23, 2014 - 10:33 PM
This diagram shows it better and the idle circuit too.
Edited by MFGray, November 23, 2014 - 10:42 PM.
Posted November 24, 2014 - 12:14 AM