low compression

Hello all! I'm hoping someone with good experience with MKI and MKII T540 XP Autotune Husqvarna's could possibly give me some advice. I'm working with two T540 XP saws one is a MkI other is a MkII. The Mk I would run fairly normally without load and for the first 5 minutes it would run in the...

I recently bought two saws with the same powerhead, one is a Poulan Pro 455 chainsaw and the other is a Target concrete saw, both essentially Pioneer P45 powerheads. They both have a feeling of low compression when pulled over without using the decompression valves. Now, they’re 72cc, and I have...

I recently bought two saws with the same powerhead, one is a Poulan Pro 455 chainsaw and the other is a Target concrete saw, both essentially Pioneer P45 powerheads. They both have a feeling of low compression when pulled over without using the decompression valves. Now, they’re 72cc, and I have...

Hello Everyone, I would appreciate some help trying to get this problem solved. I have an old 281xp that has been sitting around for over 20 years that I decided to get running again. After giving it a few shots of fuel down the carb it fired up after 2 pulls. The original jug and piston was...

So I got a husqvarna 61 rancher from an old woman, replaced the fuel filter and line and cleaned the carb. Started right up, cut okay, didnt wanna stay running after you let off the throttle. I finally bought a compression tester and the absolute highest reading I could get was 120. So what...

Hi everyone, I’ve been hanging around here a while soaking up all the knowledge you guys are kind enough to share but this is my first post. I’m sorry in advance if this post is a bit long but I just want to give as much information as possible in the hopes that someone can help me. I bought a...