Author Topic: min. compression?  (Read 249 times)

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Offline pigpen60

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min. compression?
« on: October 06, 2014, 12:29:10 pm »
whats the min compression for a saw to run/ run right?

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Offline mdavlee .

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Re: min. compression?
« Reply #1 on: October 06, 2014, 01:01:15 pm »
At 100 it may run. 125 or so seems to be better.

Offline Cut4fun .

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Re: min. compression?
« Reply #2 on: October 06, 2014, 01:39:29 pm »
I have had worn rings that showed 120psi pulled over easy but ran pretty good.  Below that I dont know. Never had one run below 120 that I can remember that would start and run.
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Offline pigpen60

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Re: min. compression?
« Reply #3 on: October 06, 2014, 04:25:23 pm »
I thought I had seen it posted somewhere. I need to do a comp. test on my mak 6421. just doesn't have the ass I think it should. least ways its a good place to start.

Offline farmboy

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Re: min. compression?
« Reply #4 on: October 06, 2014, 10:21:53 pm »
Somewhere close to 100# is lowest. I've had em start and run @ 95# today won't start tomorrow.  @ 115# or so I pull the cyl.
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Offline Cut4fun .

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Re: min. compression?
« Reply #5 on: October 07, 2014, 06:44:33 am »
LOL had to add this to my above post (  that would start and run ). Have had many under 120 LOL.
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Offline KilliansRedLeo

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Re: min. compression?
« Reply #6 on: October 08, 2014, 01:37:54 pm »
If it runs at 100, it is only a matter of a short time before it goes below 100 so I tear them apart right then. IMHO Most will run at 100 (how well is another question), @120 they will run pretty good, @ 140-150 they will run well.
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Offline pigpen60

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Re: min. compression?
« Reply #7 on: October 08, 2014, 04:17:35 pm »
checked my mak 6421 and it had 180#. Ive had a couple of leaf blowers that would start to and not tomorrow. should have kept them to test on. but no not me I tossed them across the yard and set em on fire! before I had patience and wanted to understand the little beasties.

Offline Al Smith

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Re: min. compression?
« Reply #8 on: October 08, 2014, 08:34:55 pm »
Blowers are a horse of a different color just like weed wackers .They sit more than they get ran unless you own a lawn care business .Most times the carbs get funky from inactivity and old stale gas .Very seldom with either one do they get worn out .

Offline pigpen60

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Re: min. compression?
« Reply #9 on: October 09, 2014, 07:29:05 am »
I recently was given a weedeater brand blower used by a local business every week to clear the p-lot. it was wore out, it met its demise like I previously mentioned. when it ran it beat the rake, when it didn't it got beat!

 

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