[grapeknutz]

Here you go Termy...

This is not expensive if you have any kind of electronic and mechanical abilities. There are a number of people who have done one and 2 cylinder EFI conversions with this setup..

http://www.megasquirt.info/

:ditto:

 

[Ingersoll444]

One way or the other things are going to go my way with this thing or the highway, I don't have time for this crap anymore!

OK, so am I missing something???? How bad is it running??? My Mom has the same one, and her's runs pretty good. A lot smoother then my old Kohler K singles any ways. Is yours runnig THAT bad??? Maybe got a load of crud in the carb? Has it always ran this way???

 

[Termy]

Yes it really runs that bad, I just got done from taking it out in the field and the **** was all over the place. Thing is I think I am the one who screwed it up. See I made some special adjustments that I won't mention here and well I think that might be the problem. But then again the adjustments I made should not cause this problem I don't get it. Today I readjusted my valves to where they should be and then I took the *** bowl off the carb and sprayed a bunch of carb spray in there and then used compressed air. It really was not dirty before but it sure as **** aint now. The only things I have not done was replace the air filter and the fuel filter yet.

But again I don't feel like dirting up brand new filters that I probably don't need yet. But ya these carbs are not adjustable, they use a fixed flojet carb or whatever the heck its called. Hmm... I gotta tell ya, I look pretty bad right now but oh well, image is only worth a penny.

 

[Ingersoll444]

Well to start I would back up, and look at the problem. Undo your special adjustments, and see if the problem goes away. It may not, but at least it clears it off the list of things to check.

When you have the carb apary, you need to blow out, or run a small peice of wire through all the passages. Make sure there is noting stuck in there.

Has the carb been off before?? You using new gaskets, or reusing the old? Maybe you have a vac leak. knock any hoses off? Small crack in one maybe? It happands more then you think.

Has it always ran like that, or a new problem? When did it start? Anything that may have happanded then?

Ya, the newer fixed jet carbs are not the best, but they normaly dont run THAT bad.

 

[Husqvarnas traktorer]

Termy, I have only ran Avgas 100LL in mine and all of my other air cooled engines the cost is more, but I save in repairs. The smell of the exhaust is more pleasant also

 

[Termy]

I did a small bit of research and found out that is aircraft fuel, are you crazy? Running aircraft fuel in a small engine? mg:

OK guys at closer inspection, I had noticed that the sparkplugs were dirty, one of them being more dirty. The cartridge filter was a tiny bit dirty but as I said a tiny bit is not going to hurt anything, especially since I clean it with compressed air and your not supposed to change those filter all the time. However, the phoam pre cleaner was absolutely filthy! I put some hot water in a bucket with dish soap and then I scrubbed that phoam pre cleaner in there and my lord that water got super dirty! So I have replaced the sparkplugs with new ones and then I am going to get the filter out of the clean water and then dry it out and reinstall.

As I already mentioned the fuel filter is still clean, I tested out the fuel pump by pulling the pulse line and waited. Eventually the engine began making small pops and then died. So that tested the fuel filter and the fuel pump all at the same time to make sure! I know I know, hold the applause LOL So still got a good fuel filter and still got a good fuel pump. When I had the bowl off of the carb yesterday, I also tested out the fuel sylinoid but turning the key to on and hearing and seeing the plunger move up and down, thats kind of funny if you think about it. Ah ha ha

To answer your question, no, it was not always doing this. I remember when my Honda started acting funny after I had tilted it that one year to clean it out and I could not figure out the problem. Finnaly I took the air filter off to find it saturated with oil, thats what was making it surge at higher throttle levels. Now correct me if I am wrong guys, but if the phoam pre cleaner was saturated with dirt, would that not cause the engine to starve for air thus causing not a lean condition but a rich condition?

I will get back to you guys with my progress later on :thThumbsU

 

[Termy]

Sorry guys but all my effors were in vain. I honestly don't like governors, you don't see them on cars. If engine makers are worried that engines will go out of control, ever heard of a rev limiter? Ya they got them on race cars, duhhhh! We need to get rid of the governor system and just install reve limiters to 3600 RPM's, there easy solve. I bet you that engine would run fine if I could some how get rid of the governor. That governor makes that engine surge like two kangaroos having sex!

 

[Husqvarnas traktorer]

What do think is wrong with Avgas? Avgas is designed for air cooled engines that run at a constant 3600 RPM has low lead to lube to valves and upper rings. 100 octane to further control combustion the fuel is very clean comes with fuel stabilizer in it. What is the problem?

 

[Ingersoll444]

Sorry guys but all my effors were in vain. I honestly don't like governors, you don't see them on cars. If engine makers are worried that engines will go out of control, ever heard of a rev limiter? Ya they got them on race cars, duhhhh! We need to get rid of the governor system and just install reve limiters to 3600 RPM's, there easy solve. I bet you that engine would run fine if I could some how get rid of the governor. That governor makes that engine surge like two kangaroos having sex!

The governer is not just to limit engine speed, it is used to maintane a engine speed on any load. I have used a tractor without one, [my old Gravely] and its a REAL PITA!!!. Its normaly a carb problem thats causing it to serge.

 

[Termy]

Ya well that governor can kiss my a*** LOL I am going to replace some parts on the engine next year I think so we will see what happens then.

 

[thudpucker]

Termy, I bet you could fix your problem with a Garden hose!

Your govener has some grass stuck up in a tight place. Hee hee hee. Blast it outta there and see if the Govener dont free up and your engine starts running smooth like a baby's cheeks!

 

[wayne440]

If it is running lean, choke the stupid thing slightly. It only takes a small amount of restriction to increase the venturi vacuum enough to make up for the EPA required jetting. If it doesn't have a manual choke, you can usually adjust the choke linkage a little, or employ a stategically placed piece of wire. Lots easier than tearing into carbs filters etc.

Whenever the planets align again, you may find that it is running too rich. Remove the wire or open the choke back up.

 

[Husqvarnas traktorer]

Termy I have the same unit i dont have any carb problems, i have only 160 hours on mine but never surge even under heavy load condition did you say you changed the fuel filter have you done anything to the carb. you may have to perchase a new carb before your lean condition destroys that cheaply built B&S motor.

 

[Mith_J]

Termy,

I made some special adjustments that I won't mention here

And then you blame it on the governor (which is almost essential on a mower, and not just to prevent overspeeding, and is very rarely a problem)

Seriously, take it to a mechanic who will sort it out properly before your engine is ruined. Your engine is nearly new, it probably isnt going wrong on its own.
You are trying to find solutions to problems that wouldn't happen without your solutions.

 

[Termy]

Trust me guys, I am pretty sure I can see the problem lol. I will have to buy a few new parts for the engine and it should be fine. Untill that time though, I have given my engine a nice degreasing wash and then I re lubricated the springs, controlls and put a little bit of grease on the governor shaft where the arm attaches to. When I go to winterise the engine and change the oil, I am going to replace some of the oil with MMO which will help get rid of the carbon and free up anything which might be on the way to siesing. I have heard a lot of good things about MMO and its history of the product, I have no doubt it will work wonders for my engine

 

[Termy]

Update!

Problem averted thanks to thudpucker's advice! Give him a beer guys, he's earned it! :trink40:

 

[Ingersoll444]

Cool. glad to hear it worked out. A lot of times it just ends up being the easy stuff!

 

[Termy]

Ya but who would have thought a little bit of dirt on the governor shaft would have cause such a terrible disposition? :hide: