GEARHEAD OFFSET PERFORMANCE FLYWHEEL KEY FITS ECHO CS-590 CS-600P
GEARHEAD OFFSET PERFORMANCE FLYWHEEL KEY FITS ECHO CS-590 CS-600P
GEARHEAD OFFSET PERFORMANCE FLYWHEEL KEY FITS ECHO CS-590 CS-600P
GEARHEAD OFFSET PERFORMANCE FLYWHEEL KEY FITS ECHO CS-590 CS-600P
GEARHEAD OFFSET PERFORMANCE FLYWHEEL KEY FITS ECHO CS-590 CS-600P
GEARHEAD OFFSET PERFORMANCE FLYWHEEL KEY FITS ECHO CS-590 CS-600P
GEARHEAD OFFSET PERFORMANCE FLYWHEEL KEY FITS ECHO CS-590 CS-600P
GEARHEAD OFFSET PERFORMANCE FLYWHEEL KEY FITS ECHO CS-590 CS-600P
GEARHEAD OFFSET PERFORMANCE FLYWHEEL KEY FITS ECHO CS-590 CS-600P
GEARHEAD OFFSET PERFORMANCE FLYWHEEL KEY FITS ECHO CS-590 CS-600P
GEARHEAD OFFSET PERFORMANCE FLYWHEEL KEY FITS ECHO CS-590 CS-600P
GEARHEAD OFFSET PERFORMANCE FLYWHEEL KEY FITS ECHO CS-590 CS-600P

GEARHEAD OFFSET PERFORMANCE FLYWHEEL KEY FITS ECHO CS-590 CS-600P

$ 24.00
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WHEN INSTALLING THIS KEY IT IS IMPERATIVE THAT THE KEY IS INSTALLED PROPERLY IN THE CRANKSHAFT AND THAT THE MATING SURFACES OF THE FLYWHEEL AND CRANKSHAFT ARE PERFECTLY DRY AND CLEAN. FLYWHEEL MUST BE TORQUED PROPERLY (230–270 kgf•cm, 23–27 N•m, 200–235 in•lbf) IF YOU SHEAR THE KEY THERE WILL BE NO WARRANTY COVERAGE, AS IT'S A RESULT OF IMPROPER INSTALLTION. tHE ONLY WAY A KEY CAN SHEAR IS WITH FLYWHEEL MOVEMENT. THE ONLY WAY A FLYWHEEL CAN MOVE IS IMPROPER INSTALL, IMPROPER TORQUE OR DIRTY FRICTION FIT SURFACES.
Advance ignition timing on CS-590
Not for use on CS-620
      • GENUINE GEARHEAD PART--ALL OTHER SELLERS ARE COUNTERFEIT.  TRAVERSE CREEK INC IS THE ONLY AUTHORIZED DEALER FOR THE GEARHEAD BRAND OF PARTS.
    • GET THE IGNITION TIMING ADVANCE THAT THE 620 COIL OFFERS
    • NOT FOR USE WITH CS-620 COIL
    • Get the performance of the popular CS-620 coil upgrade without the expense. This offset key gives the saw an additional 6 degrees of timing advance. With the factory 590 coil, this mod gives the saw very similar timing numbers to the 620 coil in the actual powerband of the saw.  This does not eliminate the rev limiter of the 590 coil but this normally isn’t a problem since rpms will normally be 12000 or less in the cut (rev limit is 13500 rpms).  

     

    WHEN INSTALLING THIS KEY IT IS IMPERATIVE THAT THE KEY IS INSTALLED PROPERLY IN THE CRANKSHAFT AND THAT THE MATING SURFACES OF THE FLYWHEEL AND CRANKSHAFT ARE PERFECTLY DRY AND CLEAN.  FLYWHEEL MUST BE TORQUED PROPERLY (230–270 kgf•cm, 23–27 N•m, 200–235 in•lbf)  IF YOU SHEAR THE KEY THERE WILL BE NO WARRANTY COVERAGE, AS IT'S A RESULT OF IMPROPER INSTALLTION.  THE ONLY WAY A KEY CAN SHEAR IS WITH FLYWHEEL MOVEMENT.  THE ONLY WAY A FLYWHEEL CAN MOVE IS IMPROPER INSTALL, IMPROPER TORQUE OR DIRTY FRICTION FIT SURFACES.

     

    We ship 5 days a week, Tuesday through Saturday. 

    You are able to select the service at checkout and we will adhere to whichever service you choose.

    UPS and FedEx do not pick up in our area on Saturday.  Any orders placed on Friday, Saturday, Sunday or Monday with UPS or FedEx selected will be picked up the following Tuesday.

    We ship internationally, no problem. 

     

    • 5 stars: 8 (73%)
    • 4 stars: 1 (9%)
    • 3 stars: 0 (0%)
    • 2 stars: 0 (0%)
    • 1 star: 2 (18%)
    C
    Carlos R.
    broke in two after running for a second Im hoping for a replacement

    Not sure I want another but I would love a good timing advance

    J
    Joe

    The advance timing fywheel key the day that I received it, I installed it and as as soon as I cranked up the saw, the key shared into two pieces and did not hold up. The flywheel key is made out of aluminum. I would not recommend buying this product again.

    R
    Rickey S.
    Solid part

    It definitely needed a little bit of filing to get the fit, but the saw runs great.

    A
    Andrew

    Minor hand fitting was needed, but overall a qulaity product.

    D
    Derek H.
    Greatparts

    Easy ho install. Noticable power gains.

    T
    Tim A.
    The time for some timing

    Easier to install than getting original out. I have no measurable proof but after install and giving some more fuel on the low it seemed to have more torque even when I was pushing on it pretty good.

    K
    K.B.
    Cs-590 Gearhead advanced timing key

    Product works as advertised!
    Definitely noticeable gains in saw performance, add a muffler mod and it’s an anger saw!

    B
    Boedy
    Timing Advance key from Gearhead

    Excellent product! It sets the timing precisely where it should be without any guess work.

    C
    Christopher M.
    Great Part

    Great addition for the saw

    A
    Adam B.
    Offset flywheel key

    Pretty easy to install and provides a good power increase on the echo 590 specially when used with the dukes performance carb, gearhead exhaust outlet and the air filter o-ring kit to seal out dust and debris. Put all of it on my father’s echo 590 he just bought because it didn’t have the power he thought it would have. He’s very happy with the upgrades and claims it gave the saw 20-25% more power and it’s not even broken in yet. He says he doesn’t think he’ll need his stihl 064 anytime soon which of course is a few heavier than the echo 590 and the 590 is much easier for him to start after shoulder surgery and physical therapy

    D
    Dave R.
    590 timing advance key

    It took a little sanding to get it to fit in the crankshaft but works great with a noticeable increase

    duke

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