User Tag List
Results 1 to 9 of 9
-
08-03-2022, 09:19 PM #1Junior Member
- Join Date
- Jan 2015
- Location
- Lodi WI
- Posts
- 21
- Thanks (Given)
- 5
- Thanks (Received)
- 0
- Likes (Given)
- 9
- Likes (Received)
- 4
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
2013 300XS sudden loss of power/rpm
I have a 2013 300XS with approx 80 hours on it. A couple weeks ago I took it up river - sat there most of the day- came home at the end of the day- I have to slow to go under a bridge - when I went to hit it after the bridge it didnt have enough rpm to get on plane. I took it to the local marina - they said it needed new plugs- had them install new plugs- got it back and they said to run fuel injector cleaner through it. I added the merc cleaner and ran it - there was no change from when i took it in to them in the first place. Now they say its the injectors?? I feel they are just throwing parts at it. It will not turn over 4500 rpm right now. any help would be appreciated. thnx
-
David - WI liked this post
-
08-04-2022, 05:28 AM #2Screaming And Flying!
- Join Date
- Mar 2008
- Location
- Tourist Trap, Florida
- Posts
- 14,701
- Thanks (Given)
- 380
- Thanks (Received)
- 1280
- Likes (Given)
- 5599
- Likes (Received)
- 10934
- Mentioned
- 2 Post(s)
- Tagged
- 1 Thread(s)
Check the coils sure sounds like it’s runnin on five cylinders
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
-
Lake WI Steve liked this post
-
08-04-2022, 07:23 AM #35000 RPM
- Join Date
- Oct 2016
- Location
- Amityville, NY
- Posts
- 176
- Thanks (Given)
- 27
- Thanks (Received)
- 13
- Likes (Given)
- 72
- Likes (Received)
- 123
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
Not being a wise a$$ but you might need to find a new mechanic. Any decent mechanic will do a complete diagnostic check on the motor. This includes a compression test, fuel pressure test, air pressure test, (your motor has a compressor) etc. Then he'll use his scan tool to check for codes and do a cylinder drop test where he can drop one cylinder at a time via the coil, injector. Make sure your guy has the right tools to diagnose the problem. if he doesn't find someone who does. Good Luck and let us know the outcome.
-
Lake WI Steve thanked for this post
-
08-04-2022, 07:29 PM #4Junior Member
- Join Date
- Jan 2015
- Location
- Lodi WI
- Posts
- 21
- Thanks (Given)
- 5
- Thanks (Received)
- 0
- Likes (Given)
- 9
- Likes (Received)
- 4
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
That is my feelings exactly. I talked with a friend who has a twin outboard tunnel and he recommended a different shop. I am taking it there tomorrow. I will let everyone know how this turns out.
-
08-05-2022, 02:35 PM #5
Do these first:
- Fuel / Air Pressure
- Compression
While youve got the plugs out inspect them, could tell you whats going on, is the issue on all cylinders, or just 1 or 2 etc. Should start to help you narrow it down. TPS could be another thing to look at. Injectors - but usually you would have an idle issue as well.
EDIT: Not that looking at the injectors might not be a good idea anyhow, but I doubt unless you have a complete failiure that this would be your issue in this case.
www.InjectorService.com
Call/Text - 204-326-0390
-
Lake WI Steve liked this post
-
08-18-2022, 06:56 PM #6Junior Member
- Join Date
- Jan 2015
- Location
- Lodi WI
- Posts
- 21
- Thanks (Given)
- 5
- Thanks (Received)
- 0
- Likes (Given)
- 9
- Likes (Received)
- 4
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
So I took my boat to a second shop - they diagnosed it as a broken reed valve within one hour. I had all the reed valves replaced along with the plugs for a second time and all fuel filters [as long as it was in there]. Took it out for a rip the other night and I am happy to say it is all better! Kinda pricey little fu-kers- $4k all said and done. Motor is a 2013 but only 80 hours on it? Kinda seems like a short life for reed valves? I have had the boat for sale and wouldn't you know it- a guy wanted to come look at it when all this happened. I told him everything as it happened - now that its all fixed- his wife put the kabosh on the purchase- lol - anyone heard that before? lol, oh well.
-
08-19-2022, 09:11 AM #7Screaming And Flying!
- Join Date
- Mar 2008
- Location
- Tourist Trap, Florida
- Posts
- 14,701
- Thanks (Given)
- 380
- Thanks (Received)
- 1280
- Likes (Given)
- 5599
- Likes (Received)
- 10934
- Mentioned
- 2 Post(s)
- Tagged
- 1 Thread(s)
In the future there are aftermarket reeds that are real good and cost a lot less. Chris Carson is one I like. But, it’s fixed and running good. That engine will sell easy.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
http://www.screamandfly.com/showthre...-it&highlight=
http://www.screamandfly.com/showthre...cs.&highlight=
Videos
-
Lake WI Steve liked this post
-
08-19-2022, 12:27 PM #85000 RPM
- Join Date
- Dec 2017
- Location
- Okeechobee FL
- Posts
- 170
- Thanks (Given)
- 1
- Thanks (Received)
- 29
- Likes (Given)
- 19
- Likes (Received)
- 193
- Mentioned
- 0 Post(s)
- Tagged
- 0 Thread(s)
300xs has carbon fiber reeds so they went oem, still ouch though. couldve probably done boyessen reeds too.
-
Lake WI Steve liked this post
-
08-27-2022, 02:03 PM #9Supporting Vendor
- Join Date
- Sep 2006
- Location
- Key Largo, Fl
- Posts
- 3,274
- Thanks (Given)
- 8
- Thanks (Received)
- 215
- Likes (Given)
- 30
- Likes (Received)
- 585
- Mentioned
- 1 Post(s)
- Tagged
- 1 Thread(s)
I have glass or carbon for your motor,both work well,Chris
Similar Threads
-
300xs mad efi mid power loss
By MickFaheySM in forum General Boating DiscussionReplies: 6Last Post: 01-25-2022, 02:41 PM -
Sudden loss of control box power
By HighOctane in forum Technical DiscussionReplies: 5Last Post: 10-07-2014, 07:46 PM -
sudden loss of power on 300x
By kingmate in forum Technical DiscussionReplies: 4Last Post: 05-17-2007, 10:15 AM -
70hp 1987 Johnson Sudden Power Loss
By Roamer68 in forum Technical DiscussionReplies: 3Last Post: 08-22-2005, 04:46 PM