Ranger 620 w/ Yamaha F250 Hole Shot
KK
Posted 5/21/2007 12:01 PM (#56116)
Subject: Ranger 620 w/ Yamaha F250 Hole Shot


I own a Ranger 620 with a Yamaha F250. I was wondering if there are more out there with this setup. I am having problems with hole shot. I have a T8 kicker and a vantage on the transom. If I have 3 guys in the boat and the live well full. I can not get out of the hole unless I move guys to ther front on take off. The dealer ship seems to think the low end power is fine. I have the stainless Pro Yamaha 23 prop it came with on and have tried the 21 (hole shot improved), but lose 8-10 mph top speed going down. Any ideas. Anyone else having these issues? I see Grady Whites with the same motor come out of the hole no problem.

Thanks
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WalleyeFIRST
Posted 5/21/2007 1:43 PM (#56124 - in reply to #56116)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot



Member

Posts: 1382

I'd try a 4 blade prop in a 21 first, then a 23. I also have heard that a Merc Tempest 3 blade will give you better performance.
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T-Mac
Posted 5/21/2007 5:25 PM (#56136 - in reply to #56116)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


Member

Posts: 142

Geeez... 8-10 mph loss doesn't sound right when going down from 23 to 21. You should see a little drop off... maybe 3 mph if the 23 is working well.
But... 23 sounds is usually too tall for 620 w/ F-250.

What do you get for rpms at best trim and wide open throttle with the 23?
How about with the 21?

You want to hit 6000rpms at wide open and best trim.

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Trophy10
Posted 5/22/2007 10:46 AM (#56160 - in reply to #56116)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


I had a similar situation with my Triton. Try a stabilzer. I purchased a new sting ray model from Bass Pro Shops that requires no drilling and improved holeshot 100%. Would recommend without a doubt I was so impressed by it.
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KK
Posted 5/22/2007 12:29 PM (#56168 - in reply to #56160)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


Thanks for all the replys I really appreciate it. I will test out the two props again to get accurate rpms. I believe if I remember correctly the dealer said that he saw through the computer hook up I went over 6000 (and that would have been when I tested the Pro 21) I believe the 23 is at 5900. I will get more accurate readings soon. I also tried the 21 salt water.

From memory:
Max GPS speed with the 23 Pro 62 mph one guy.
Max GPS speed with 21 Salt water 56
Max GPS speed with 21 Pro 53-54

I asked Yamaha and the dealership about the four prop and they recommended going up to a 24 first. No one has them in stock. I will look at the stabilizer on-line. I will get more information up soon. Thanks again for the responses and ideas.
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KK
Posted 5/22/2007 12:33 PM (#56169 - in reply to #56168)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


The other frustrating thing is that Ranger sends this boat out with the Pro 23 but they said no one else has had any of these issues. There has to be people out there with the same set up with the 101 vantage also in the back (and a four bank system.
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Shep
Posted 5/22/2007 1:34 PM (#56175 - in reply to #56169)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot



Member

Posts: 3899

I've been in 4 2002-2005 620's with the Yamaha 4 Stroke. Two were the F225, and the other two were the F250. All the boats were very slow on the hole shot. Top speed on the 250's was about 53-54, once it got going. The F225 top speeds were about 47-49. Very sluggish out of the hole, especially with a livewell full of nice eyes. The weather seemed to affect these motors more than it does a DFI 2 stroke. Alot. Hot and humid, they have little low end torque. That's my experience.

As for the props they ran, I do know the F250's both had 4 blade props. I think the 225's had 3 blade props. Do not know the pitch.
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john
Posted 5/23/2007 6:55 AM (#56213 - in reply to #56116)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


Shep, the 620's weren't rated for 250's until 2006, so how could 2 of them have 250's?
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Shep
Posted 5/23/2007 9:31 AM (#56229 - in reply to #56213)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot



Member

Posts: 3899

Sorry, those were 621's.
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walleye247
Posted 5/23/2007 10:55 AM (#56240 - in reply to #56229)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


Member

Posts: 35

I have a 621 with 250F I have tried a bunch of props PM me for more details, the 250 is a fairly torquey motor but it does need to release back pressure upon hole shot more so than a 2 stroke, many people don't realize this. You need to either enlarge the holes on the Yamaha prop or run a Mercury prop, with either the largest holed plastic plugs or no plugs at all. On mine a 23" Tempest with largest plugs has a good hole shot and will run 56 MPH all day long with a full load, at 5,800 RPM. The Revolution 4 is good but the 23" pitch seems too steep you have to bump down to a 21", you will run at the top end of the RPM range at about 54 MPH. I have a hydralic jack plate, but before having it installed it seemed the best overall performance was with the engine mounted on the second hole from the bottom. Hope this helps!

Mark
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future_pwt_pro
Posted 5/23/2007 4:24 PM (#56262 - in reply to #56116)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


Running a 621 with a 250 verado. Running 60-62 with a full load. Running a tempest 21p. Fast...alright holeshot
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guest
Posted 5/24/2007 9:40 AM (#56287 - in reply to #56116)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


Jack Plate ?
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T-Mac
Posted 5/24/2007 10:16 AM (#56292 - in reply to #56169)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


Member

Posts: 142

I wouldn't say "nobody" is having trouble propping that combination.

We sent Ranger's 23p back and put a Merc 21 Tempest on it.
The 620w/F-250 we sold gets used mainly on Ft Peck (MT) which is around 2500' elevation.
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T-Mac
Posted 5/24/2007 10:19 AM (#56293 - in reply to #56262)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


Member

Posts: 142

No Fair.
Talking Yamaha F-250, here.


PS: we sold a couple 620's w/ 250 Verados. They run great!
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Tony
Posted 5/24/2007 1:04 PM (#56313 - in reply to #56116)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot



I recently got a 07 620 with the 250 verado, I do have a couple of questions for anyone that has the same setup.

250 verado
36 volt system
what hole is your motor on
what prop works best
do you have any of the plugs out?

Thanks to who reply
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Guest
Posted 5/25/2007 7:50 AM (#56347 - in reply to #56116)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


August 2006 Bass and Walleye magazine, did a 250 test with this motor on a 620 Ranger. The prop chosen by the factory reps for this set up was the 23 that your boat came with as you have stated. It sounds like weight is your biggest issue, both hanging off the end as well as in your boat. The Yamaha had the worst hole shot of the motors that were tested, but ran a respectable 60 mph with this set up. I mentioned a Jack Plate earlier because I'm not sure changing props is going to give you the best of both worlds (Top end and Hole shot). Obviously what you lose in these catagories with the Yamaha, you will make up with the reliability of your engine.
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KK
Posted 6/4/2007 11:52 AM (#56762 - in reply to #56240)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


Mark,
Thanks for the reply!!

Do you have the same setup on the back of your 621 with the T8 and the Vantage? I had the dealer change the mounting to the second hole from the bottom, since I ended up talking to the yamaha guy that did the yamaha Performance testing with this boat with another guy from Ranger. He said they were recommending the 2nd hole from the bottom now. I was on Winnie last week for the week and had the same issues for the whole trip, moving guys to the front each time on take off. Had some strange looks from others on what we were doing. Before I order the Merc Tempest, which seems to be the good solution just wanted to know how much weight you had in the back.

Thanks
Kevin
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Roadhunter
Posted 6/9/2007 6:19 AM (#57028 - in reply to #56116)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


I and my boss own the exact same boat and have the exact same problem. Please keep posting your findings.

Thanks
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KK
Posted 6/11/2007 12:56 PM (#57120 - in reply to #57028)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


Did some more testing this weekend.

Motor mounted in Hole Second from Bottom;

Full tank of gas, 1 person 14.5 x 23 Yamaha T1 Max Speed 59mph Got out of Hole OK w/ 1 person. 5800 RPM Max Won't get out of hole with 3 people and livewell full

Full tank of gas, 1 person 14.5 x 21 Yamaha M Pro Prop Top Speed 53.5 MPH. Maxxed out RPM 6000-6200+ Way better hole shot. Doesn't seem ideal if maxxing out rpms.

What will the Tempest help with here? Would I need a certain hub kit for a tempest prop. Tempest Plugs? Are they removable? Would you recommend the 23 Tempest?

Thanks For any information.
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walleye247
Posted 6/15/2007 3:56 PM (#57374 - in reply to #57120)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


Member

Posts: 35

You are probably going to want the 21" Tempest with the largest holed plastic plugs and you will need a Yamaha hub kit, but you may want to try an Enertia prop it is brand new from Mercury and have heard really good things about it specifically for 4-strokes. Try contacting some of the larger Mercury dealers in your area many have props they will let you try before you buy. I haven't tried the Enertia yet but will try to put one on in the next few weeks I will report back, as to what I find out. I have to say I do like Mercury props they do a great job designing and building some of the best props on the market and they seemingly have the fewest problems with spun hubs. I have owned all three of the major brands of outboard motors and I can say that Mercury props preform the best on any brand motor. If any of you guys are located in WI call Merten Marine in Oshokosh @ (920) 231-6751, they have a ton of Mercury props you can try and they are great guys. Good luck!

Edited by walleye247 6/15/2007 4:03 PM
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walleye247
Posted 6/15/2007 4:02 PM (#57375 - in reply to #57374)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


Member

Posts: 35

Forgot to answer the RPM question, to get the correct combination of holeshot and topspeed you will likely be running right at 6,000, so you may have to be careful with a light load.
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weifeng
Posted 6/14/2012 9:06 PM (#104760 - in reply to #56116)
Subject: Re: Ranger 620 w/ Yamaha F250 Hole Shot


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budsbud66
Posted 6/15/2012 8:32 AM (#104763 - in reply to #104760)
Subject: Re: Ranger 620 w/ Yamaha F250 Hole Shot



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Posts: 344

Location: Manitowoc WI
hackers
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John G.
Posted 6/19/2012 12:18 PM (#104828 - in reply to #56240)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


Member

Posts: 13

walleye247 - 5/23/2007 10:55 AM

I have a 621 with 250F I have tried a bunch of props PM me for more details, the 250 is a fairly torquey motor but it does need to release back pressure upon hole shot more so than a 2 stroke, many people don't realize this. You need to either enlarge the holes on the Yamaha prop or run a Mercury prop, with either the largest holed plastic plugs or no plugs at all. On mine a 23" Tempest with largest plugs has a good hole shot and will run 56 MPH all day long with a full load, at 5,800 RPM. The Revolution 4 is good but the 23" pitch seems too steep you have to bump down to a 21", you will run at the top end of the RPM range at about 54 MPH. I have a hydralic jack plate, but before having it installed it seemed the best overall performance was with the engine mounted on the second hole from the bottom. Hope this helps!

Mark


I agree with this post. I have setup many F225's on 2025 Lund. With the right vented prop it will come out of the hole good. The key is the venting holes on the stainless props that are designed to cause prop wash at low rpm's, which allows the motor to rev up quicker to a rpm that has higher tourque. You can get a prop designed to allow for more prop slippage out of the hole. One way is to enlarge the venting holes to increase more prop slippage. I have machined some props for a friend on his bass boat. It made a world of difference.
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Shep
Posted 6/19/2012 6:25 PM (#104830 - in reply to #56347)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot



Member

Posts: 3899

Guest - 5/25/2007 7:50 AM

Obviously what you lose in these catagories with the Yamaha, you will make up with the reliability of your engine.


I still get a chuckle from this obviously ridiculous statement. hehehe
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Guest
Posted 7/12/2012 12:16 PM (#105096 - in reply to #56116)
Subject: RE: Ranger 620 w/ Yamaha F250 Hole Shot


I put an edge pro series hydrofoil on the same setup and it improved the hole shot a lot. I couldn't get on plane with a full livewell and 2 guys in the boat, but now it isn't a problem, still not a rocket but greatly improved. It didn't affect my top end at all either.
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