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Stihl FS-51av fuel mix
#89710 11/01/18 12:57 PM
Joined: Dec 2017
Posts: 70
carina
kenny_t
Offline
Trainee
can someone tell me the mix ratio for a vintage FS51av...?
Ken.
Re: Stihl FS-51av fuel mix
kenny_t #89712 11/01/18 01:02 PM
Joined: May 2017
Posts: 131
Melbourne
Millzy555 Offline
Apprentice level 2
Originally Posted by kenny_t
can someone tell me the mix ratio for a vintage FS51av...?
Ken.

Try 50:1 (recommended by stihl)
Re: Stihl FS-51av fuel mix
kenny_t #89715 11/01/18 01:50 PM
Joined: Jan 2015
Posts: 988
Likes: 7
Australia
paul_c Offline
Qualified Senior

I run my Stihl hedge trimmer on 25:1, a little more smoke but more oil. Doesn�t foul the plug either.
Re: Stihl FS-51av fuel mix
paul_c #89716 11/01/18 02:15 PM
Joined: Dec 2017
Posts: 70
carina
kenny_t
Offline
Trainee
Thanks guys.. been running it on 25 - 1... thought it was a bit smokey .. For some reason the exhaust discharges toward the fins ..?, and after a short time covers them with oil..
Will try the 50-1 and see how it goes.

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