Echo-3510 help me diagnose

[toppers]

Bizarre issue here folks, Cs-3510 on about 20 tanks always ethanol free fuel has suddenly developed a lack of oomph in the cut. Has been an excellent little saw up until this moment and I'm puzzled. Has an aftermarket Oregon bar and can see oil seeping out the hole at the tip and coming off the chain. Just bogs and feels like it ran out of power mid cut, then the bar gets hot. Chain was manually sharpened good enough, I don't think it's that. I thought it could be the gas, so tried new gas. No change. It was tuned with a muffler mod and put away in march running perfectly at 2.5 out on the H side, it's warmer now but I tried adjusting and no luck.

What could I be missing? New air filter too.

 

[SteveSr]

Bizarre issue here folks, Cs-3510 on about 20 tanks always ethanol free fuel has suddenly developed a lack of oomph in the cut. Has been an excellent little saw up until this moment and I'm puzzled. Has an aftermarket Oregon bar and can see oil seeping out the hole at the tip and coming off the chain. Just bogs and feels like it ran out of power mid cut, then the bar gets hot. Chain was manually sharpened good enough, I don't think it's that. I thought it could be the gas, so tried new gas. No change. It was tuned with a muffler mod and put away in march running perfectly at 2.5 out on the H side, it's warmer now but I tried adjusting and no luck.

What could I be missing? New air filter too.

If t he bar gets hot you either have insufficient oil to the bar or a dull chain. My bet is on #2.

 

[toppers]

must be something wrong with how I sharpened it, I mean my maintenance is spot on so what else can it be. thanks.

 

[SteveSr]

must be something wrong with how I sharpened it, I mean my maintenance is spot on so what else can it be. thanks.

Put a new (out of the box) chain on it and see what happens.

 

[heimannm]

Have you been lowering the depth gauges when you sharpen the chain? If not, you will have to apply way too much pressure to get the chain to scratch out a little fine sawdust and that puts a lot of extra drag on the bar and chain.

As Sr. says, try a good new chain and see how it compares.

Mark

 

[mountainlake]

Check for a clogged muffler screen too. Steve

 

[Hickahollar]

My cs3510 after about 20 tanks all of a sudden wouldn't cut very well at all. I pulled the screen on the muffler and it was clogged. Burned it off with a torch; retuned and haven't had that problem again.

 

[bigsnowman]

I also plugged the screen on mine. Clean screen=pretty good scream.

 

[Syflan]

On the chain... is it possible that you have bent one or more drive links? If the chain doesn't run smoothly through an entire rotation, that would cause a lot of heat.

 

[toppers]

I manually sharpened it and filed the rakers correctly and the problem went away, it was a sharpening issue after all. I had been using some cheesy Husqy sharpening tool (the kind you find at Tractor Supply) and it just wasn't working for me.