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Yamaha 250 Sho fuel choice???
#13375637
12/18/19 12:44 AM
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Joined: Jul 2006
Posts: 381
SkeeterB
OP
Angler
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OP
Angler
Joined: Jul 2006
Posts: 381 |
What octane fuel are y’all running with your Yamaha Sho? I’ve been running regular 87 but was told I need to be running at least mid grade to premium. I don’t feel I’m getting enough speed with my motor and FX21. I’ve ordered a new prop from Lake Linear Prop out of Georgia to help with performance .
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Re: Yamaha 250 Sho fuel choice???
[Re: SkeeterB]
#13375639
12/18/19 12:49 AM
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Joined: Jul 2013
Posts: 6,703
Brent S
TFF Celebrity
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TFF Celebrity
Joined: Jul 2013
Posts: 6,703 |
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Re: Yamaha 250 Sho fuel choice???
[Re: SkeeterB]
#13375644
12/18/19 12:54 AM
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Joined: Jul 2015
Posts: 265
skeeterbugzx300
Angler
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Angler
Joined: Jul 2015
Posts: 265 |
what rpm & speed u getting out of it.
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Re: Yamaha 250 Sho fuel choice???
[Re: skeeterbugzx300]
#13375647
12/18/19 12:55 AM
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Joined: Jul 2006
Posts: 381
SkeeterB
OP
Angler
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OP
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Joined: Jul 2006
Posts: 381 |
5880 rpms 65 mph full tourney load.
Last edited by SkeeterB; 12/18/19 12:56 AM.
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Re: Yamaha 250 Sho fuel choice???
[Re: SkeeterB]
#13375650
12/18/19 12:57 AM
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Joined: Oct 2019
Posts: 544
TomRom
Pro Angler
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Pro Angler
Joined: Oct 2019
Posts: 544 |
I would run what Yamaha recommends, nothing more nothing less. I think the SHO 250 is suppose to operate best on 89 octane. Yamaha posts owners manuals for their engines on their website in case if you do not have one. It will tell you what they recommend.
Last edited by TomRom; 12/18/19 12:58 AM.
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Re: Yamaha 250 Sho fuel choice???
[Re: SkeeterB]
#13375655
12/18/19 01:04 AM
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Joined: Sep 2011
Posts: 5,404
Minner Bucket
TFF Celebrity
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TFF Celebrity
Joined: Sep 2011
Posts: 5,404 |
Dealer said 89 so that’s what I run, also only buy Shell or Chevron since I can’t get ethanol free, supposedly their gas is a little better, but who knows.
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Re: Yamaha 250 Sho fuel choice???
[Re: SkeeterB]
#13375673
12/18/19 01:28 AM
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Joined: May 2002
Posts: 5,037
leethefishking
TFF Celebrity
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TFF Celebrity
Joined: May 2002
Posts: 5,037 |
You have to run 89 to get the full 250’horsepower. Fuel choice isn’t really optional with that motor.
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Re: Yamaha 250 Sho fuel choice???
[Re: SkeeterB]
#13375676
12/18/19 01:30 AM
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Joined: Jan 2004
Posts: 72,522
Mark Perry
Super Freak
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Super Freak
Joined: Jan 2004
Posts: 72,522 |
Owners manual calls for 89. I have goofed a time or two and used 87 and per dealer its no big deal here and tgere buy 89 will get you best overall performance.
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Re: Yamaha 250 Sho fuel choice???
[Re: SkeeterB]
#13375695
12/18/19 01:54 AM
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Joined: Jul 2011
Posts: 4,100
David Burton
TFF Team Angler
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TFF Team Angler
Joined: Jul 2011
Posts: 4,100 |
5880 rpms 65 mph full tourney load. FX21 is a fairly substantial and heavy boat for the 21 foot size. It is almost the same hull as the old 'I-Class'. You are a little low on what I understand to be my top-end, but not by much. I do need to get my prop re-tuned, but I am getting a similar result, though my tournament load is pretty substantial (with me in it). I max at about 61 - 63 fully loaded with my partner.
David Burton 2015 Skeeter FX 21 +Ultrex +Helix 12 (x3) +Mega360 +MegaLive
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Re: Yamaha 250 Sho fuel choice???
[Re: SkeeterB]
#13375727
12/18/19 02:42 AM
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Joined: Jul 2006
Posts: 381
SkeeterB
OP
Angler
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OP
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Joined: Jul 2006
Posts: 381 |
Thanks everyone and happy holidays!
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Re: Yamaha 250 Sho fuel choice???
[Re: SkeeterB]
#13375861
12/18/19 11:53 AM
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Joined: Nov 2008
Posts: 7,618
361V
TFF Celebrity
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TFF Celebrity
Joined: Nov 2008
Posts: 7,618 |
89 Octane “PER YAMAHA” (Mid grade). Why open it up to public opinion?
Last edited by 361V; 12/18/19 11:54 AM.
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Re: Yamaha 250 Sho fuel choice???
[Re: SkeeterB]
#13375880
12/18/19 12:39 PM
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Joined: Jun 2012
Posts: 20,732
Douglas J
TFF Guru
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TFF Guru
Joined: Jun 2012
Posts: 20,732 |
I've been running 89 in mine for years
#MFGA
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Re: Yamaha 250 Sho fuel choice???
[Re: SkeeterB]
#13375946
12/18/19 01:42 PM
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Joined: Apr 2019
Posts: 267
SkeeterHunter
Angler
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Angler
Joined: Apr 2019
Posts: 267 |
I run 89 (Valero) in my '19 ZX250, which is close to the same empty weight as the FX21, with the ring free per the Yamaha manual. I typically get between 72-76 mph depending on water and wind conditions.
2019 Skeeter ZX250
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Re: Yamaha 250 Sho fuel choice???
[Re: SkeeterB]
#13375958
12/18/19 01:48 PM
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Joined: Sep 2008
Posts: 1,801
Tx Tree Grower
Extreme Angler
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Extreme Angler
Joined: Sep 2008
Posts: 1,801 |
5880 rpms 65 mph full tourney load. Pretty close to what I get in mine. I can touch 67 with a full tournament load in the right conditions. What prop are you running? Personally I'm ok with the top speed but I hate the hole shot on my fx21 in the summer with a tournament load. Thinking about looking into a different prop during warmer weather. Just not something I know much about though.
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Re: Yamaha 250 Sho fuel choice???
[Re: Douglas J]
#13375972
12/18/19 02:00 PM
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Joined: Aug 2003
Posts: 30,320
RedRanger
burro desagradable
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burro desagradable
Joined: Aug 2003
Posts: 30,320 |
I've been running 89 in mine for years
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