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Thank ms to you all for your input. I was hoping that given the good condition of the piston & rings and the cylinder, I would be able to replace the broken rod and be back in business. Then I noticed the scoring on the crankshaft from and lid. I knew I should get input and advice looks like...

Not to confuse things but here are a few photos of an old crankshaft that I think is fro a Honda with the same type of damage to the crankshaft

Here are some photos of the upper bearing surface on the crankshaft and the damaged cast aluminum bearing surface in the lid. As I think I previously mentioned I have not disconnected the blade clutch and transmission pulley or removed the engine in order to remove the crankshaft from the...

I will do that later this afternoon. I put the engine back together so I would be able to remember how every thing went together. When I was posting the photos off the shattered connecting rod I was kicking myself for not taking photos of the lid and crankshaft

Thanks to everyone for your input. This is one heck of a mower with a cast aluminum deck and is in great condition. The concern that I have with the crankshaft is scoring not on the rod journal but at the top of the crank where it passes through the lid. Of course the lid bearing is just a...

I am working on a John Deere JX75 a 21 inch self propelled mower approx 25 yrs old it has a Kawasaki FJ180V-AS11 engine. The connecting rod broke. When I opened up the engine I found the cylinder and piston and rings to be in great shape. The connecting rod journal on the crank looks good no...

yes it is at least 30 years old. The piston and rings as well as the cast iron cylinder sleeve look great. I have not pulled the crankshaft completely out of the engine so I have not seen the lower bearing surfaces on the crankshaft or the sump/bucket look. Also I haven’t been able to...

I have a JX75 with a broken connecting rod. The piston, rings and cylinder look great. The upper bearing surface on the lid of the engine and the top of the crankshaft that passes through the lid/ bearing are both scored. I am asking for input as to how smooth both surfaces need to be…and how...

I am having no luck pulling a Honda CGCV190 flywheel. I have tried a 2 leg puller with out any success. I am thinking that arms on my claw type puller squeezes the top of the flywheel and is not pulling straight up enough. I have ordered a 8 inch puller that gas straight arms and will allow...

Is it OHV? Adjust the valves?

I am impressed how politely answered this question was. It is very very impractical if not totally impossible to convert economically from gasoline to diesel fuel. Like someone said if you have an unlimited budget…have at it

One more thing…sometimes the carb gets so cruddy at the inlet that the float needle sticks and gas cannot enter the bowl. If you remove the drain bolt with the gas shut off open the gas should continue to run through. If only a small quantity of old crappy gas comes out and it stops, your...

I just looked at an IPL for a version of your snowblower. Keeping in mind that the PR241 model is like saying it’s a Ford Mustang when what is needs is a VIN number to get exact parts. There is a much longer number that begins with a 9 that is needed for exact parts matchup. All that said it...

Is this a Honda style carb with two bolts on the bottom of a metal bowl.? If so there is a brass orifice in the center of the carb. It will require a very fine stiff wire, insert the wire up through the orifice and make sure it is open. The wire should be able to insert a full inch to inch...

If there are 2 bolts on the carb bowl. The one at a 45 degree angle is a drain. If there is, remove that bolt and drain some gas out. Catch the gas in a clear container ( old jar?) See what that it looks and smells like. It should be clear and should smell like gasoline not like varnish or...

Have you removed the spark plug and replaced it with a new one or a known good plug? Also try adding some gas through the spark plug hole… replace the plug and attempt to start it. If it pops and runs even for a few seconds you know it’s a fuel delivery problem. I should have asked if the...

So I am not going to get a chance to try to fix this.. my friend called me and said the dealer had called him back and said that when they were looking at his records, they looked at the wrong blower and this blower was in fact under warranty. So he picked it up and is returning it to tge...

I hit the wrong button and sent the above before it finished…. So to get back too it I had the muffler off and cleaned the spark arrester screen and there is nothing wrong with it. I attempted to look at the piston through the exhaust port but it seems that this engine is the Stihl 4 cycle that...

I am attempting to repair a BR700 backpack blower for a friend. My friend brought it to me saying he had it looked at by a local Stihl dealer..who told him it was tied up and needing major engine repair. I removed the spark plug and put an oz. of ATF and a little gas in the spark plug...

Hello I am working on a BR700 backpack blower. A friend brought it to and it was tied up. Rope would not pull. Took the starter off and removed the spark plug and added an ounce or so of ATF-4 and some gas. Worked the crank back and forth a few degrees at a time and it began to move freely...

Yes I misspoke it is acetate. Thanks

Not to answer my own questions. But I just watched a YouTube video on the subject of pump diaphragm materials. I found it searching in my YouTube app ‘Walbro Carburetor Diaphragms’. The guy who did the video identified 3 types. Rubberized which are black and rubbery, Acetone which are the...

I did think it was odd that the lever and spring were not included. I reused the old ones… not ideal. I was thinking that I had read somewhere that the synthetic pump diaphragms, like the electric blue colored one were an upgraded version and replaced earlier styles if they match are the...

Thanks to everyone for their help! After talking with the Echo tech who had nothing good to say about aftermarket carbs; I purchased a k10-WLA rebuild kit and rebuilt the original Walbro WLA-1 carb with an actual Walbro kit. Lo and behold it fired up. It ran poorly and I was able to adjust it...

So I went to a local small engine shop who has a tech who really knows Echo. I was not able to speak directly to him since he was at lunch. The owner shuttled back and forth from the lunch table to the front counter and asked him about my problem. I brought my tablet with a pdf of the IPL...

It has a choke lever on the air filter box. The part on top of the carb echo calls an air valve assembly and it opens and closes via a link based on the throttle position and it fits into another part called a valve assembly. This 2nd valve asby is attached to the cylinder and 2 air hoses run...

I have a PB-500T. Serial P31212136027 I can get it to start if I pour a small quantity of gas into the carb. After it starts it runs great full throttle and low idle. If I do not pour gas into the carb I can prime the carb ( a dozen pumps or more..full choke and pull, pull and pull some more...

I am thinking that I will have to pull the cylinder head. I will try pushing on the valve first. I am wondering if the valve sear on the intake valve came looseand has the valve jammed in the open position. If it is that...can I use the same procedure I have done on a few Briggs engines of...

I am working on a 1987 Ex mark 32 inch walk behind commercial mower. It is a model number 32-12.5kd5. The Koehler engine number is illegible. I can read a Spec of 7275. 390 cc and a serial number 2611504544. Anyway it is a pull start and starter would not pull. I took the starter off and...

Thanks for your reply. I took the starter apart and the armature is definitely bad I can get a aftermarket on Amazon. I way sell it as pull start only and install a starter if whoever wants to buy it wants a an electric starter

I was gifted a 9 hp craftsman snow thrower A model number 536.886260. It has a Craftsman /Tecumseh made engine model 143.019003. I got it running and starting with the recoil starter. I examined the starter and found numerous teeth broken off of the starter gear (bendix). It is a 16 tooth...

So I am having the same problem with a fg110 tiller. I am enlightened by the illustration and explanation of the oil distribution. I am confused as to why the oil goes into the air filter box rather than returning to the oil sump. Is there a passage that might be blocked that I can clean? Is...

I would try putting a mix of 50/50 ATF and acetone in to the spark plug hole. Let it set in the engine for a few hours … you can also remove the muffler to get access to the exhaust side and add some of the ATF mix there too. After it sits a few hours try moving the blade a little to the...

There are numerous safety switches in these electric mowers. I would look at the switch that engages when the handle is fully extended and locked. There may be a switch that prevents the blade from turning if a catcher bag is not in place or the discharge plate is locked down. Spit

No it makes no contact to the carb whatsoever. If I move my hand in front of the carb while it is running it will begin to stall, so it may well have to do with the vacuum and drawing air in somewhere other than through the carb throat. I am going to check the gaskets on the carb where it...

There is a throttle screw. But I don’t think it could be the cause of this issue. It runs at high speed and idle until the air filter cover begins to close over the carb and then it cuts out. I have never seen anything quite like this. There is a hose I assume an oil breather hose, that runs...

I am quite confused. I am working on a FG110 mini tiller. It was not running it is now running but as I begin to install the air filter cover it will slow down and stall. This happens with or without the sponge air cleaner element being in place. Just putting the cover on stalls the engine...

So your thoughts on using staples to fix a mower deck is that it won’t hold up Would you use a hot air welder? What plastic welding rod material would you use for a Honda deck? From memory it seems like there are 4 or more different formulas of plastic rods.

Bert The process I am referring to uses a gun that heats a staple that melts into the plastic bridging the crack. Sort of like a series of sutures over an incision. Do a Google, Youtube or Amazon search for HOT STAPLE PLASTIC WELDER and get a look at what these things do. The staples are...

I am wondering if anyone has any success with hot staple welding cracked Honda plastic decks. I have a unit with a couple of cracks and I am considering trying a hot staple plastic welder. Would love to know what anybody’s experience has been CFS

The Tecumseh Primer arrived today and I installed it and then he mower is running properly now. I never knew that the primer with a hole in it was not a sub for one without a hole in it. Thank you to everyone who offered me help. I am still scratching my head as to why the Tecumseh illustrated...

I did not identify a Tecumseh part number for a primer without a hole in it until late Sunday night searching Google. That is when I first saw and got a part number. I have always seen lots of Tecumseh Snow Kings with the red primers with a hole in the center in fact that is all that I have...

I have ordered the Tecunseh primer. I honestly thought that the ones I gave with a hole in them were replacements for all primers. I think the closed primer is going to fix it. Thanks to everyone who assisted me. I will report back when I have installed the part CFS

I was will have to ask the customer. Thing is the guy who brought me the mower is the father of the guy and his wife that use the mower. I will see what I can find out and post it

I am a work in progress… it turns out that. It is not positive pressure blowing out of the carb up into the primer… it is in fact vacuum. Negative pressure is drawing air into the carb through the hole in the primer back to the fitting on the carb. I got the engine running and quickly...

Here are some photos

I am unable to upload photos ‘essage says my files are too big. The original primer was black and did not have a center hole in the top of it. I see that the Tecumseh used a black primer that did not have a hole in it part number 34814 superseded to 35769. Does anyone know if it incorporated...