Search results

This quirk has me stumped. I restored a classic old Echo 500 EVL's carb that was running the engine very poorly. It now starts and runs at top end smoothly. Acceleration and power are both fine. Resting on the ground or on a table, it idles perfectly and the chain loop is at rest. When you pick...

I have a new brake handle on order but I don't want to see it suffer the same treatment that the engine gave the old one: I removed the exhaust port and checked the spark screen and it's not clogged. Here is where the exhaust generates the heat. It seems clear: So, my question is, how can I...

I worked on an Echo 355T saw last year for a friend and it ran fine. He brought it in yesterday and asked me to repair the pull cord. It seemed OK to pull without removing the outer panel cover for inspection, but I decided to remove the cover and inspect it. Here's what I ran into: the threads...

I ordered a Husky 353 carburetor and neglected to notice that it has a primer bulb port in addition to the typical fuel intake. The primer bulb was optional on these saws and mine does not have one. My question is simple. Can I modify this carb easily and use it anyway? Seems like the intake...

I need the IPL and the Service Manual for an Echo CS-590 that has a broken chain brake handle. I will be installing a new one. TIA. Apparently the handle locked the brake and a piece broke near the trigger that locks it when the operator tried to disengage the brake.

The owner brought this saw to me after he wrenched the bar nut way too hard and stripped the coarse internal female threads used by the collar screw. I am sure that likely many here have run into this failure. The engine still runs well. As you know, this saw only has one bar stud and likely...

I'm working on an elderly Craftsman 3.7 that runs well, but one of the starter pawls broke off and needs replacing. I removed the flywheel and I am not sure if it screws into the flywheel the same way my McCulloch 610 does or if it's a simple press fit pounded in. Here's a Pic of both front and...

I was given a Stihl MS 661C that somehow vibrated its two muffler mounting bolts loose, so much so that they wrecked the threads in the piston, gouged them out, and ruined the cooling plate. The shroud even has a hole burned into it from the exhaust leak, so it will have to be replaced. I tried...

I ran into something today that I had not seen before. A customer asked me to fix a Stihl MS460 that would start and then die when close to idle. Whether on choke or not and during initial start up, fuel was being blown out of either the decomp valve or the muffler, so much so that I thought the...

I found this hole in the case that leads to the bar oil tank. It's empty and oil drips out. Seems like a part is missing but the IPL is so crude that I can't tell what is missing or what I could use as a stopgap. The saw will run and oil the bar OK if nothing is there because the bar covers the...

The carb on the 064 that was brought in today is a Walbro WJ6A and that does not even appear on the IPL that I have. It must be a vintage original OEM carb that I cannot even find being sold today. The replacement carb they want you to use is the came one sold for the MS660: Walbro WJ65. This...

I decided to replace the oil pump and the suction hose after an MS290 stopped oiling. It could be that just a loose drive spring that mates with the worm was all that is wrong. However, I ran into a major obstacle -- removing the suction hose. Hose removal has been an impossible mission. Check...

I've run into a Stihl MS291 that has good compression and spark but makes a whap whap sound when cranked and will not start. My first guess is that the crankshaft bearings and seals are shot, but there is no play or wobble on the flywheel or clutch. Everything seems tight. I have removed the...

I just got a call from a tree service company owner. He asked, "Do you happen to have any bug chain? I could use a couple of 36" loops if you have some available." I have lots of 30" loops of used chain that I could salvage or make into 36" loops. However, I would like to know what a bug chain...

This is a dandy. A guy brings me his stock Stihl 064 power head and says, "It's not running quite right and seems loud. Please check it over." He leaves. Next morning I removed the shroud and noticed a loose muffler, hanging on by a thread or two. From the front, the lower left bolt nearest the...

This one is interesting, so I decided to post it for feedback. A fellow brought in a Stihl MS 290 that had been running fine but he said it stopped and could not be restarted. Seemed like no compression, so I decided to tear it down and rebuild it. I measured compression at 70 psi, so the top...

Rough? Sometimes I think that's an understatement. Take a look at this one: It was a 36" bar. The logger was half way through bucking a 22" log with his MS661 when he ran out of fuel. He went to his truck to get the fuel can and left the saw in the log temporarily. When he turned around, the...

You guys might hate this thread. I am completely stocked out of ash, oak, elm, locust, maple, and walnut. Everybody loves those and my demand doubled over last year. Even my hackberry is gone. So, I came up with a "secret" delivery formula by volume: 40% poplar and cottonwood 40% mulberry 20%...

You guys may find this post interesting on a rainy day. A logger backed over his MS 661C M-Tronic with a 25,000 lb skid loader. The handle bar looked like a pretzel, somehow the bar and chain survived, and the engine still had compression and turned over. He decided to have me repair it. That...

I'm ready to give up on this Husky 350 that I rebuilt. I installed a new 44 mm P/C, but it would not start. Compression measures at 140 psi cold. So, I bought a new carb and replaced the old one. Now it starts, idles OK, and runs, but it has no top end at all. It sounds as if it's locked in a...