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Author Topic:   New Yamaha 4 Strokes

onlyawhaler posted 09-02-2010 01:55 PM ET (US)
Late last year and early this spring, Yamaha rolled out their new larger displacement 4 stroke outboards.
The "Game Changer" engines featuring larger displacement blocks and much lighter weight than previous 4 strokes seemed like a big step up on the competition. The most advertized were the bass boat models, but they are being made in 25 inch shafts that would seem to be an excellent repower option for Whalers because of weight and power
I havent' seen a single article except for Yamaha website video clips that goes into detail about these new engines in the 200-250hp range.
Has anyone seen anything of substance, any comparisons, any shootouts between brands?
Thanks
Onlyawhaler
seahorse posted 09-03-2010 08:38 AM ET (US)

quote:

I havent' seen a single article except for Yamaha website
That is surprising to hear as earlier this year and late last year practically boating magazine had articles about the new Yamahas after they tested the prototypes last summer and again this spring for the offshore models.
Because of the weak economy and some production delays, relatively few have been sold at this time. You may get sticker shock with the new motor's prices.
Most of the boating companies who have tested them find that speed wise, the Mercs, Evinrudes, and the new Yamahas are very close. Acceleration is very good and matches the 2-stroke performance on most boats, depending on the rig and setup.
Yamaha is to be commended for designing a lighter weight 4-stroke that has remarkable mid-range punch. Soft acceleration and poor midrange was the biggest complaint of earler 4-stroke models from them.
imko posted 09-04-2010 11:46 AM ET (US)
I send Yamaha marine an e-mail with the question either the new SHO Vmax 200 in the near future is available in 25 inch shaft length.
No response from Yamaha!
It would be the perfect engine for my 190 Outrage.
Peter posted 09-04-2010 07:31 PM ET (US)
The new 4.2L V6 Yamahas are enormous. It would look way out of proportion on the 190 Outrage.
Mambo Minnow posted 09-06-2010 08:17 AM ET (US)
Large, but nowhere near as large and heavy as the V-8 300 HP beast.
vin1722or posted 10-06-2010 02:49 PM ET (US)
I have the 300hp V-6 thety just released on a new robalo 24 dual console.It runs well and it is lighter than the 300hp v-8 they were using on it last year.I am a dealer and did not hear anything from Yamaha.I heard it from a customer.Yamaha is doing a silent release of the new 225,250 and 300hp v-6's so the old inventory in the field can be sold.They are telling us a 15% gain in economy over the old 225,250 and 20% over the v-8 300hp.
L H G posted 10-06-2010 07:50 PM ET (US)
Does Yamaha finally have a 4-stroke that can come close to the performance of the Verado on acceleration, mid-range and top end?
jimh posted 10-07-2010 08:29 AM ET (US)
I think L H G is on to something here in his comparison with the VERADO. These new Yamaha four-cycle engines are very large. In terms of weight and size they compare very favorably with the VERADO. I do not know if they actually are bigger and heavier than the VERADO, but it sounds like they are giving the VERADO a run for the money in the race to be biggest and heaviest.
Lil Whaler Lover posted 10-07-2010 11:16 AM ET (US)
I must respectfully disagree with jimh and L H G about the physical size of the new Yamaha 4.2 Liter engines. They all weigh in at 558 pounds dry. The old V-8 300/350 weighed in at 804 pounds and the old style F200, F225 and F250 weighed in at 609 pounds.
I am looking over my computer monitor at a 4.2 250, with a F150 in an adjacent space. The 2 motors are very close in height, but the 250 is wider and has a larger midsection and lower unit. It looks much smaller than the old 250 when both are on the same hull, a 22 dual console.
Yamaha has set a new standard for both physical size and weight with these 4.2 motors.
Owtrayj25 posted 10-07-2010 11:55 AM ET (US)
I have seen the new 4.2L 250 side-by-side to both the older F250, and the F350. All three in the same showroom within 10 feet of one another. I would not characterize the 4.2L as enormous, but only slightly larger in appearance than the older F250. The F350 is noticeably larger then the new 4.2L and indeed large when compared to other outboards. But based on their targeted transoms, they rarely look out of place. Twin F350's looked right at home on a 30' center console Grady.
I wonder when Mercury will have a Verado that can come close to the service record of a Yamaha? ;-). I would enjoy seeing a shoot-out with the Verado and SHO Yamahas.
Peter posted 10-07-2010 03:23 PM ET (US)
"It looks much smaller than the old 250 when both are on the same hull, a 22 dual console."
I respectfully disagree. I have seen both together and the old 3.3L F250 is smaller than the new 4.2L Offshore 250. The powerhead section of the new Offshore 250 is nothing short of large.
WT posted 10-07-2010 03:42 PM ET (US)
The Yamaha 4.2 liter 4 stroke SHO motors are 505 pounds, which compare to the weigh of ETEC outboards of the same HP rating.
http://www.yamaha-motor.com/outboard/products/subcatspecs/103/specs.aspx
Peter posted 10-07-2010 03:56 PM ET (US)
Specifications for a 25 inch n Offshore version, which is what most would use on a Whaler, show 562 lbs dry. An operational version with oil in the crankcase and gearcase would hang about 575 lbs on the transom without a prop.
Owtrayj25 posted 10-07-2010 08:34 PM ET (US)

quote:
An operational version with oil in the crankcase and gearcase would hang about 575 lbs on the transom without a prop.
As opposed to say a 524 lb ETEC, adding a external oil reservoir, I think we are talking less 30 or 40 lb difference. Really, is anyone gonna worry about that?
As for the enormity of the 4.2L Yamaha's, low profile/low freeboard bass boat manufacturers don't seem bothered by this. Remember when golf woods went to 250cc, 300cc, 424cc and now 460cc. The old 250cc drivers look wierd, whereas 15 years ago, it was called "the great big bertha".

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Author	Topic: New Yamaha 4 Strokes
onlyawhaler	posted 09-02-2010 01:55 PM ET (US) Late last year and early this spring, Yamaha rolled out their new larger displacement 4 stroke outboards. The "Game Changer" engines featuring larger displacement blocks and much lighter weight than previous 4 strokes seemed like a big step up on the competition. The most advertized were the bass boat models, but they are being made in 25 inch shafts that would seem to be an excellent repower option for Whalers because of weight and power I havent' seen a single article except for Yamaha website video clips that goes into detail about these new engines in the 200-250hp range. Has anyone seen anything of substance, any comparisons, any shootouts between brands? Thanks Onlyawhaler
seahorse	posted 09-03-2010 08:38 AM ET (US) quote: I havent' seen a single article except for Yamaha website That is surprising to hear as earlier this year and late last year practically boating magazine had articles about the new Yamahas after they tested the prototypes last summer and again this spring for the offshore models. Because of the weak economy and some production delays, relatively few have been sold at this time. You may get sticker shock with the new motor's prices. Most of the boating companies who have tested them find that speed wise, the Mercs, Evinrudes, and the new Yamahas are very close. Acceleration is very good and matches the 2-stroke performance on most boats, depending on the rig and setup. Yamaha is to be commended for designing a lighter weight 4-stroke that has remarkable mid-range punch. Soft acceleration and poor midrange was the biggest complaint of earler 4-stroke models from them.
imko	posted 09-04-2010 11:46 AM ET (US) I send Yamaha marine an e-mail with the question either the new SHO Vmax 200 in the near future is available in 25 inch shaft length. No response from Yamaha! It would be the perfect engine for my 190 Outrage.
Peter	posted 09-04-2010 07:31 PM ET (US) The new 4.2L V6 Yamahas are enormous. It would look way out of proportion on the 190 Outrage.
Mambo Minnow	posted 09-06-2010 08:17 AM ET (US) Large, but nowhere near as large and heavy as the V-8 300 HP beast.
vin1722or	posted 10-06-2010 02:49 PM ET (US) I have the 300hp V-6 thety just released on a new robalo 24 dual console.It runs well and it is lighter than the 300hp v-8 they were using on it last year.I am a dealer and did not hear anything from Yamaha.I heard it from a customer.Yamaha is doing a silent release of the new 225,250 and 300hp v-6's so the old inventory in the field can be sold.They are telling us a 15% gain in economy over the old 225,250 and 20% over the v-8 300hp.
L H G	posted 10-06-2010 07:50 PM ET (US) Does Yamaha finally have a 4-stroke that can come close to the performance of the Verado on acceleration, mid-range and top end?
jimh	posted 10-07-2010 08:29 AM ET (US) I think L H G is on to something here in his comparison with the VERADO. These new Yamaha four-cycle engines are very large. In terms of weight and size they compare very favorably with the VERADO. I do not know if they actually are bigger and heavier than the VERADO, but it sounds like they are giving the VERADO a run for the money in the race to be biggest and heaviest.
Lil Whaler Lover	posted 10-07-2010 11:16 AM ET (US) I must respectfully disagree with jimh and L H G about the physical size of the new Yamaha 4.2 Liter engines. They all weigh in at 558 pounds dry. The old V-8 300/350 weighed in at 804 pounds and the old style F200, F225 and F250 weighed in at 609 pounds. I am looking over my computer monitor at a 4.2 250, with a F150 in an adjacent space. The 2 motors are very close in height, but the 250 is wider and has a larger midsection and lower unit. It looks much smaller than the old 250 when both are on the same hull, a 22 dual console. Yamaha has set a new standard for both physical size and weight with these 4.2 motors.
Owtrayj25	posted 10-07-2010 11:55 AM ET (US) I have seen the new 4.2L 250 side-by-side to both the older F250, and the F350. All three in the same showroom within 10 feet of one another. I would not characterize the 4.2L as enormous, but only slightly larger in appearance than the older F250. The F350 is noticeably larger then the new 4.2L and indeed large when compared to other outboards. But based on their targeted transoms, they rarely look out of place. Twin F350's looked right at home on a 30' center console Grady. I wonder when Mercury will have a Verado that can come close to the service record of a Yamaha? ;-). I would enjoy seeing a shoot-out with the Verado and SHO Yamahas.
Peter	posted 10-07-2010 03:23 PM ET (US) "It looks much smaller than the old 250 when both are on the same hull, a 22 dual console." I respectfully disagree. I have seen both together and the old 3.3L F250 is smaller than the new 4.2L Offshore 250. The powerhead section of the new Offshore 250 is nothing short of large.
WT	posted 10-07-2010 03:42 PM ET (US) The Yamaha 4.2 liter 4 stroke SHO motors are 505 pounds, which compare to the weigh of ETEC outboards of the same HP rating. http://www.yamaha-motor.com/outboard/products/subcatspecs/103/specs.aspx
Peter	posted 10-07-2010 03:56 PM ET (US) Specifications for a 25 inch n Offshore version, which is what most would use on a Whaler, show 562 lbs dry. An operational version with oil in the crankcase and gearcase would hang about 575 lbs on the transom without a prop.
Owtrayj25	posted 10-07-2010 08:34 PM ET (US) quote: An operational version with oil in the crankcase and gearcase would hang about 575 lbs on the transom without a prop. As opposed to say a 524 lb ETEC, adding a external oil reservoir, I think we are talking less 30 or 40 lb difference. Really, is anyone gonna worry about that? As for the enormity of the 4.2L Yamaha's, low profile/low freeboard bass boat manufacturers don't seem bothered by this. Remember when golf woods went to 250cc, 300cc, 424cc and now 460cc. The old 250cc drivers look wierd, whereas 15 years ago, it was called "the great big bertha".