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New motor won't go over 3000 rpm
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| tm5k |
Posted on 06/12/20 - 9:13 PM
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I hope this is the right/best place to post this for help. I bought a DF30A remote control model and got it on the water for the first time today. I let it sit for 15 minutes idle, got it up to 3000 rpm went to the area to where I wanted to fish and trolled around for 4 hours. The wind picked up and decided I needed to head in. Like it says in the title it would only go 3000 rpm @ 6 miles per hour full throttle. Any ideas? I want to give as much context that I can so I can figure this out. As you can imagine I was pretty bummed out to have this experience. I have a Suzuki tach with all the system lights. There were no lights that came on our any warning noises. I looked in the manual and it gave a couple reasons of limitation of 3000 rpm but involved warning sounds and lights. Other than that I was pretty pleased. It started right up and trolled between 1-2 mph. I hope I can achieve at least 20 mph in case is sketchy scenarios like today. I've got it mounted to an old 13 Boston whaler sport.
Is there a safe way for me to test the rpm without putting it back on the water?
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| JRP |
Posted on 06/13/20 - 3:38 AM
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Does this engine possibly have a break-in protocol that prevents revs over 3K for a certain amount of time?
The other question is what prop size are you using?
19 Outrage II (1992) |
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| Phil T |
Posted on 06/13/20 - 8:20 AM
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If new, have you followed the break-in schedule listed in the manual?
https://www.suzukimarine.com.au/asset...A-2019.pdf
Page 37:
Break-in period: 10 hours
Break-in procedure
1. For the initial 2 hours:
Allow sufficient idling time (about 5 minutes) for the engine to warm up after cold engine starting.
After warming up, run the engine at idling speed or the lowest in-gear speed for about 15 minutes.
During the remaining 1 hour and 45 minutes, if safe boating conditions permit, operate the engine in gear at less than 1/2 (half) throttle (3000 r/min.)
2. For the next 1 hour:
Safe boating conditions permitting, operate the engine in gear at 4000 r/min. or at three- quarter throttle. Avoid running the engine at full throttle.
3. Remaining 7 hours:
Safe boating conditions permitting, operate the engine in gear at desired engine speed. You may occasionally use full throttle; how- ever do not operate the engine continuously at full throttle for more than 5 minutes at any time.
1992 Outrage 17 I
2019 E-TEC 90, Viper 17 2+
2018 Load Rite Elite 18280096VT |
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| tm5k |
Posted on 06/13/20 - 9:01 AM
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JRP wrote:
Does this engine possibly have a break-in protocol that prevents revs over 3K for a certain amount of time?
The other question is what prop size are you using?
From what I've read it doesn't have anything that prevents it. I'm using the prop that came with it. 3 x 9.25 x 10
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| tm5k |
Posted on 06/13/20 - 9:03 AM
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Phil T wrote:
If new, have you followed the break-in schedule listed in the manual?
https://www.suzukimarine.com.au/asset...A-2019.pdf
Page 37:
Break-in period: 10 hours
Break-in procedure
1. For the initial 2 hours:
Allow sufficient idling time (about 5 minutes) for the engine to warm up after cold engine starting.
After warming up, run the engine at idling speed or the lowest in-gear speed for about 15 minutes.
During the remaining 1 hour and 45 minutes, if safe boating conditions permit, operate the engine in gear at less than 1/2 (half) throttle (3000 r/min.)
2. For the next 1 hour:
Safe boating conditions permitting, operate the engine in gear at 4000 r/min. or at three- quarter throttle. Avoid running the engine at full throttle.
3. Remaining 7 hours:
Safe boating conditions permitting, operate the engine in gear at desired engine speed. You may occasionally use full throttle; how- ever do not operate the engine continuously at full throttle for more than 5 minutes at any time.
Yes, I warmed up for 15 minutes and then went to the general area to troll at 3000 rpm. Fished for 4 hours and then went full throttle to try and get off the lake. No difference between half and full throttle in turns of rpm.
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| Phil T |
Posted on 06/13/20 - 12:17 PM
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What hour of break in are you at? If you started at 0, there may be a limiter on the engine during break in. You want to follow the directions completely.
If you don't break the engine in correctly, it can lead to future problems.
1992 Outrage 17 I
2019 E-TEC 90, Viper 17 2+
2018 Load Rite Elite 18280096VT |
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| Joe Kriz |
Posted on 06/13/20 - 2:40 PM
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What year is this "old 13 Boston whaler sport" ?
https://www.whalercentral.com/article...icle_id=61
https://www.whalercentral.com/viewpag...age_id=155
What year is the DF30A Suzuki motor?
and what shaft length is this motor? 15" or 20" ?
We need to know if you are using the correct shaft motor for your 13' Sport.
https://www.whalercentral.com/faq.php...p?cat_id=7
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| tm5k |
Posted on 06/14/20 - 7:43 AM
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The motor is a 2020, 20". The Whaler is a 1976.
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| tm5k |
Posted on 06/17/20 - 7:18 AM
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So I got it back out on the water yesterday. It goes about 3300 rpm in forward gear. In reverse it got up to 6000 rpm no problem.. what do you guys think?
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| Phil T |
Posted on 06/17/20 - 7:46 AM
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Please answer the questions already asked in post 6.
Edited by Phil T on 06/17/20 - 7:48 AM
1992 Outrage 17 I
2019 E-TEC 90, Viper 17 2+
2018 Load Rite Elite 18280096VT |
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| tm5k |
Posted on 06/17/20 - 8:01 AM
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Phil T wrote:
Please answer the questions already asked in post 6.
Sorry Phil. Started at 0. 5 hours in now.
Break-in period: 10 hours
Break-in procedure
1. For the initial 2 hours:
Allow sufficient idling time (about 5 minutes) for the engine to warm up after cold engine start.
NOTICE
Running at high speed without sufficient warm-up may cause severe engine damage such as piston seizure.
Always allow sufficient idling time (5 minutes) for the engine to warm-up before running at high speed.
After warming up, run the engine at idling speed or the lowest in-gear speed for about 15 minutes.
During the remaining 1 hour and 45 minutes, if safe boating conditions permit, operate the engine in gear at less than 1/2 (half) throttle
NOTE:
You may throttle up beyond the recommended operating range to plane your boat, then imme- diately reduce the throttle to the recommended operating range.
2. For the next 1 hour:
Safe boating conditions permitting, operate the engine in gear at 4000 r/min. or at three- quarter throttle. Avoid running the engine at full throttle.
3. Remaining 7 hours:
Safe boating conditions permitting, operate the engine in gear at desired engine speed. You may occasionally use full throttle; how- ever do not operate the engine continuously at full throttle for more than 5 minutes At a time.
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| Phil T |
Posted on 06/17/20 - 8:07 AM
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Sent you an email.
It could be a few things.
I ran the numbers through a prop calculator and I am not sold on the prop they gave you. Possible the pitch is too low.
The prop size does not explain the failure of the engine to run higher than 3K.
Have you called the selling dealer?
1992 Outrage 17 I
2019 E-TEC 90, Viper 17 2+
2018 Load Rite Elite 18280096VT |
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| biggiefl |
Posted on 06/17/20 - 9:18 AM
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I would check throttle linkage, might be binding and hence why she goes full RPM in reverse.
24 Whalers so far.... |
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| Phil T |
Posted on 06/17/20 - 9:38 AM
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Have been thinking same thing Nick.
Trevor and I are scheduled for 1:30 call to figure it out.
1992 Outrage 17 I
2019 E-TEC 90, Viper 17 2+
2018 Load Rite Elite 18280096VT |
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| MG56 |
Posted on 06/17/20 - 3:08 PM
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tm5k, did you install this engine yourself? I'm guessing you did because you are asking idjits online instead of the professional installer.
And stop doing 6k in reverse, lol.
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| MG56 |
Posted on 06/17/20 - 3:09 PM
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Biggie nailed it, installer error.
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| Phil T |
Posted on 06/17/20 - 3:26 PM
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Hey, you talkin' 'bout me!
1992 Outrage 17 I
2019 E-TEC 90, Viper 17 2+
2018 Load Rite Elite 18280096VT |
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| tm5k |
Posted on 06/17/20 - 3:37 PM
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MG56 wrote:
Biggie nailed it, installer error.
I wish you were right.
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| biggiefl |
Posted on 06/18/20 - 7:38 AM
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If it not the throttle or shift cable, it would have to be the ECM. I also think a 10" prop might be too small. It is not the rev limiter as they limit at 3k but cut out ignition so it "stammers" at 3k.
24 Whalers so far.... |
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| tm5k |
Posted on 06/18/20 - 8:05 AM
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biggiefl wrote:
If it not the throttle or shift cable, it would have to be the ECM. I also think a 10" prop might be too small. It is not the rev limiter as they limit at 3k but cut out ignition so it "stammers" at 3k.
Thanks, I appreciate your input. I'm thinking ECM too. I don't know a whole lot about boats, but I even wondered if the tach could be part of the problem (seems like a long shot though).
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