df 300 suzuki

[ozbee]

how do the Suzuki 300 stand up ,are they a weak 300 or not ,reliable fuel efficient etc

[chop duster]

won't be too many owners on here or in aus. for that matter. try thehulltruth.com

[Wahoo]

how do the Suzuki 300 stand up ,are they a weak 300 or not ,reliable fuel efficient etc


there is only one here in Cairns, havent spoken to the guy, BUT, rumour is..............its one hell of a motor, and in at 35k it should go good

[kitty_cat]

I have ran a 6.75mtr haines for a few big trips now with the 300hp suzuki.8-)
we ran around at d.i for 3 days from good conditions to really ordinary 25+ knts and the 300 was awsome .Hull shoot mid range and top end are impressive we averaged 1ltr/1klm over the days (best was 0.9 ltrs klm at 5200rpm doing 38-40 mph) we have also repeted this in a couple off agnes trips with the same economy, cant beat that i reacon
The haines is a heavy boat with fresh water galleys big tanks and eskys ect

wayne

[chop duster]

geesus, you can get a 350 yammy for 35 can't you?

ozbee, are you thinking of trading in the e-tec?

[ozbee]

the local Honda dealership has sold out to a Suzuki dealership . i own a 50 hp Honda on my tinny. he said you can have 7 yr warranty on a new 300 Suzuki. i have 18 months left on the etec so it did prick my ears . power wise fuel wise i think it would be much the same as the 250 etec . i suppose it would depend on trade in value . if i thought if i was ever going to change i would go for a 300 hundred or a 350 Yamaha same motor i presume. i notice one runs on premium and one on unleaded , is that all the difference or is there motor part changes.

the thought of all those service costs puts me off a bit but if you take it into perspective each trip to the reef i use $70 of xld 100 yeah its 20 dollars a 4 litre bottle cheaper in Brisbane but that's a bloody long way to walk anyhow freight kills you.at 4200 rpm im getting about 60 to 1.

a reef trip is about 2hrs each way so add another for shifts max is 5 hrs . so ten trips is roughly $700 dollars of oil for 50 hours.

how much is a 50 hour service on a four stroke cost these days

a 300 puts you pretty well at 50 mph in a 680 so would you go for the heavier cc Yamaha. it would be interesting to note which has the best fuel economy the 300 Yamaha or Suzuki

the 300 Suzuki is not exactly light on cubes at 4028cm. isnt it different now where length of warranty and service is more important than brand these days.
has anyone got a 350 Yamaha and how are they going are they the copy of the old v8 evinrude racing block which had plenty of grunt but had more problem's than any other motor.

[rodneyk]

geesus, you can get a 350 yammy for 35 can't you?

ozbee, are you thinking of trading in the e-tec?
ozbee nearly choked on my scotch when you mentioned v8 omc seriously paul at yatala yamaha has recently fitted 2 to different boats ihave been in a couple of boats one mono 773l haines single 250hp suz 3400 kevla cat twin 250 suzi all nic engines :)

[Luke G]

Services are 20 hours for the first then every 100 hours, no 50 hour service.

[chop duster]

ozbee,
2 hour trips to the reef, thats gotta suck!
The old OMC was a 2 stoke, the new yammy is a 4, lets leave it at that.
Nice to hear some real world numbers regarding oil usage in the big e-tec's.

Have you got a Merc dealer in your area? the 300hp verado would be my pick (i run a 250 verado so maybe a little bias), they are being praised as very reliable engines over in the states, and fuel consumption is on par with other models (better than the yammy) below 4500 rpm. If there are no dealers in the area i wouldn't bother.

Seriously, go have a look at some of the USA forums (as mentioned in my previous post), they have alot more user's over there, putting way more hours compared to blokes in Aus.

BTW - whats a 680's transom rating?

[Scott nthQld]

Graham, did a quick search and found these performance figures for the 350hp Yamaha on a 680 Patriot, given they are on the Yamaha website so more than likely are a bit biased:

http://www.yamaha-motor.com.au/pdf/marine/power_reports/Haines_Hunter_680_Patriot_F350.pdf

Also, here's the link for the 300hp yammie:

http://www.yamaha-motor.com.au/pdf/marine/power_reports/Haines_Hunter_680_Patriot_F300.pdf

According to yamaha, the 350 uses less fuel at cruise than the 300 on the same boat, but the 350 obviously has a larger prop.

couldn't find anything on the suzuki though, other than marketing trash spruiking about how good they are.

Oh and the transom rating of a patriot is 300hp and 500kg according to the patriot specs on the hh website

[chop duster]

must be larger than 300hp if they have a test page for a 350hp?
they are deffinently getting some good top end speed out of them, but 130L an hour, no thanx

[Scott nthQld]

The 300hp figure is straight from the hh website but if you look at the yamaha reports they've got it listed as 320, so even during testing they knew the 350 was oversize.

[ozbee]

mines not the standard transom scott

[ozbee]

f 350 a t 5000 rpm is about the same fuel /economy/speed as my 250 etec flat out i cant understand the reason for swinging a 16.25x17 on the 300 yet 15.5x21 on the 350. both theses motors are same stroke cubes etc. 16.25 x 17 is exceedingly square . a 250 etec on a 680 swings a 15.5x 17 . i would assume the fourstroke would have the slowest prop rpm compared to the di two . you would expect the 300 yamaha to swing a 19 at least which should give it a better all round outcome

[ozbee]

for those of interested the 250 etec fuel economy is better down real low and level pegging at wot but does lose a touch in that mid range

[ozbee]

can anyone tell me what rpm the zuke does to get its 300 hp

[Wahoo]

ozbee, at the time, what did you pay for your 250 E-tec?

[Jabba_]

A 7 year warranty on a new motor. Ozbee, I would jump at the deal also...

As for using $70 worth off oil per 4hr trip, Ouch..

Did you get your motor sorted out or is it still down on WOT prm???

[business class]

Seen one on a 8m Platey. Owner is not to keen on the engine apparently, he said full noise it does 92ltr/hr, and at cruise speed does 46ltrs:o and thats pushing a 3.4t Boat. Personally I think its because the big girl is underpowered!::) but hey thats not for me to say.::) :P And i think if you were to price it fitted with steering and so on, i think you won't get much change out of $39,000.00..... Thats my guess anyway.

Cheers
Matty

[chop duster]

92 @ full throttle isn't too bad i would have thought. I wounder what rpm he cruses at, 46 isn't out of this world either.

[business class]

92 @ full throttle isn't too bad i would have thought. I wounder what rpm he cruses at, 46 isn't out of this world either.

He was saying he cruises at 4400 Rpm doing 18 knots. But says when he gets to 4800 rpm and doing 23 knots it uses around 65ltrs but this is only going of what he has suggested. I believe twin 150hp would have been a better choice especially for the size of boat IMO. i think the sore point was He was not happy with the dealer who sold him the engine due to theinformation he recieved was it would get low 30ltrs/hr at cruise and be doing around 24knots.

[Scott nthQld]

just found some info on the performance stats for the df 300. its been fitted to a few yank boats, but should give you some idea

http://www.travellingfisherman.com/forum/index.php?t=rview&th=44&goto=104#msg_104

This will take you to another forum, 2nd post down their is a pdf file to open, this is where you will find your info. Hope it helps, it was the only thing I could find.

[ozbee]

sorry to take so long getting back to you all the old land line died after all the rain up here date to be fixed is two weeks . oh don't you love telstra. im interested in peoples opinion on the yamaha 300 and 350 those stats to me seem to point that there is no difference between the too just the octane fuel rating and also deliberately over blade on the 17 pitch prop on the 300. but gee 7 year warranty compared to 4 is a lot less nights of worry

46 ltrs /hr pushing a 3.4 t boat what does he expect also 65 / hr pushing that heavy boat doing 23 knts still pretty good

hows the corrosion on these zuks has it been corrected as they did have a bad reputation opinions greatly appreciated

[Luke G]

I would get the suzuki - I've had a 115, 150 and old man had a 250 all have been brillient with no issues with any of them. Lots of VMR boats are repowering with them now. They have no corrosion issues if you look after them. There are a heap of 300's in the US now and no specific issues to speak of.

[FNQCairns]

had a quick look at those PDFs, they are a crock, Yam is pulling a fast one here. Those 2 engines are very closely matched IMO, they used an over diameter prop on the 300 to dumb it right down and make the 350 look like it stands well out and above. 16.25 is a massive prop, if one fitted a 15.00x 20 or 21 to the 300 then the chance is good to say, lookout 350 the 300 just passed you in acceleration or at least kept up like a 330 would.

It is a right con, suspect there is only .5 of an inch diameter in it and the 300 then might them keep up everywhere and get better economy doing it...I do not believe their economy numbers in any way either, suspect the 300 is closer to the 350s wherever that should be in real life.

cheers fnq

[chop duster]

FNQ - FYI
the yam 300-350 requires a prop with a larger exhaust bore. So you are unable run the merc line of props etc... I think I read somewhere that pwertech or the like is trying to come up with some props to provide more choice.

[FNQCairns]

FNQ - FYI
the yam 300-350 requires a prop with a larger exhaust bore. So you are unable run the merc line of props etc... I think I read somewhere that pwertech or the like is trying to come up with some props to provide more choice.

Yeah that would have to be right, i should edit my typo re calling them zuks. Would love to see a comparison of those two engines both running either of those 2 props as both should be able to do it.

cheers fnq

[ozbee]

im correct aint i the yamaha is four years warranty not three. gee you would like to know what props there are surely theres one in between . maybe theres a exhaust restrictor in the 300 . a lot of unknowns out there for throwing out a lot of money bit funny to advertise your 300 chewing more fuel than there 350

[FNQCairns]

im correct aint i the yamaha is four years warranty not three. gee you would like to know what props there are surely theres one in between . maybe theres a exhaust restrictor in the 300 . a lot of unknowns out there for throwing out a lot of money bit funny to advertise your 300 chewing more fuel than there 350


Ozbee not these days, the difference will be in 0s and 1s, a minor map change to decrease the crack time/volume of the injectors is all that's needed. Never has 2 engines with the same specs been so easy to de or up rate.

In the US it's even illegal to buy a new computer for your modern outboard unless you first produce and forfeit the old one. Cannot have no rev head up rating their motor to soil some departmental administrations paperwork:P, not to mention it helps to sell another engine.

cheers fnq