xpuser
ArboristSite Member
Whats the best tachometer out there. I have been using the PET-302r but they dont seem to be giving me long enough service life for the price. What is everyones favorite?
The problem doesn't seem to be the battery but the display numbers start jumbling around once the engine gets over 5000 rpm on the one I have now. My last one just got to where you couldn't read the screen at all.I have an oppama husky branded tach and love it! What's the matter with yours? I thought battery life was 10 yrs
Interesting my tach has 43 some hours on it and it'll read 22,000 just fine. Now, it will do some funky stuff when the rev limiter is hit tho!!The problem doesn't seem to be the battery but the display numbers start jumbling around once the engine gets over 5000 rpm on the one I have now. My last one just got to where you couldn't read the screen at all.
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Does the saw you are tuning have a limiting coil?The problem doesn't seem to be the battery but the display numbers start jumbling around once the engine gets over 5000 rpm on the one I have now. My last one just got to where you couldn't read the screen at all.
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Tried it again today on a 550xp and if I gradually throttle it up it would give a good reading about half the time until it hit the rev limiter but other times it will not. even when I know the saw is at Around 6 to 8k rpm it goes crazy. I am wondering if maybe it has been dropped and that has messed it up. That one reason for this post I was hoping that someone had one that they would recommend that has been proven to be durable.Does the saw you are tuning have a limiting coil?
Like its been mentioned before if the saw is tuned "passed" the coil it will give you every number but the one you are looking for.
If the saw has a limiting coil fatten the Hi side up (Be generous) and see if you can get a steady reading before you buy a new tach.
Sorry if this sounds like a broken record and you already knew this...
Have you tried moving it closer/farther away from the spark plug? My first and now replacement Fast Tach's both went bonkers at less than 4"-6". The replacement tach is much better, but still has problems with sensitivity (or lack of).Tried it again today on a 550xp and if I gradually throttle it up it would give a good reading about half the time until it hit the rev limiter but other times it will not. even when I know the saw is at Around 6 to 8k rpm it goes crazy.
That may be part of it. I hold it closer than that.Have you tried moving it closer/farther away from the spark plug? My first and now replacement Fast Tach's both went bonkers at less than 4"-6". The replacement tach is much better, but still has problems with sensitivity (or lack of).
The first one of these I had I could hold it against the plug wire and get a good reading.Have you tried moving it closer/farther away from the spark plug? My first and now replacement Fast Tach's both went bonkers at less than 4"-6". The replacement tach is much better, but still has problems with sensitivity (or lack of).
I know that a 5100 dolmar is hard to tune by ear!I usually tune by the sound of the saw but I do use it to check my judgement sometimes, and sometimes I just want to see how fast different saws will turn.
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