texasfishingforum.com logo
Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
CPG8787, Tecman, Kolton12211993, TFonzy, Fisher6969
113773 Registered Users
Top Posters(All Time)
TexDawg 97,114
hopalong 89,795
Pilothawk 80,193
John175☮ 77,777
JDavis7873 67,400
Bigbob_FTW 67,162
Derek 🐝 64,941
Mark Perry 60,731
Tritonman 58,986
facebook
Forum Statistics
Forums62
Topics780,643
Posts9,905,678
Members113,773
Most Online36,273
Jan 23rd, 2013
Print Thread
02 PRO XB 250 SURGING ISSUES #13609163 06/26/20 06:25 PM
Joined: Mar 2017
Posts: 23
B
BwdMan Online Content OP
Outdoorsman
OP Online Content
Outdoorsman
B
Joined: Mar 2017
Posts: 23
I have a 02 merc pro xb 250 on a 02 Bullet 21XD. The motor starts and idles good. When I start to take off it starts to load up and then it starts to "surge". Almost like it is running out of gas. I will finally get on plane but will only top out at about 4900-5100 rpms and it surges still. This engine should be turning about 6100 rpms but it won't get there. It is running about 65 mph gps with 3 people and full gas tank. I have had a mechanic look at it. He went in and cleaned the vapor separator and screens, put on a new fuel filter, did a compression check (115-120 on all six) and replaced the vacuum lines. Also he checked the reeds and injectors he said they were fine. I have since replaced the MAP sensor, as my mechanic said that should fix it, but it did not. I am worried that the engine will get worse if I don't figure out what the issue is. The oil reservoir under the cowling will not fill with oil and it started to beep 4 beeps about 2 minutes apart. I filled it by hand and the beeping stopped. I put a new tank in and now it will not fill either and it beeps 4 beeps every 2 minutes all the time, even after I fill it by hand. My mechanic now says he thinks the engine is trying to run in safe mode because it thinks the engine is out of oil. It is getting oil because it smokes good while it is running. Does anyone have any other suggestions as to what is causing these problems? If not does anyone know of a good older merc mechanic fairly close to Brownwood? This boat should fly with the way it is set up. I just want to get it running right. Thank you for your help.

Re: 02 PRO XB 250 SURGING ISSUES [Re: BwdMan] #13614506 07/01/20 11:22 AM
Joined: May 2004
Posts: 7,785
Tiltman Online Content
TFF Celebrity
Online Content
TFF Celebrity
Joined: May 2004
Posts: 7,785
Find Blake Enberg

Re: 02 PRO XB 250 SURGING ISSUES [Re: Tiltman] #13615054 07/01/20 05:06 PM
Joined: Mar 2017
Posts: 23
B
BwdMan Online Content OP
Outdoorsman
OP Online Content
Outdoorsman
B
Joined: Mar 2017
Posts: 23
Is he still in Llano?

Re: 02 PRO XB 250 SURGING ISSUES [Re: BwdMan] #13615627 07/02/20 12:08 AM
Joined: May 2003
Posts: 11,585
gary purdy Offline
TFF Guru
Offline
TFF Guru
Joined: May 2003
Posts: 11,585
Surely they have checked the fuel pressures, fuel lines, fuel pressure regulator and coils. I would send the injectors to Brucato http://www.brucatofis.com/Services.html and get a scanner. https://www.rinda.com/marine/marinemenu.htm


The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
Re: 02 PRO XB 250 SURGING ISSUES [Re: BwdMan] #13615862 07/02/20 03:28 AM
Joined: May 2004
Posts: 7,785
Tiltman Online Content
TFF Celebrity
Online Content
TFF Celebrity
Joined: May 2004
Posts: 7,785
Originally Posted by BwdMan
Is he still in Llano?



He always calls where he live “the hill country “

That’s the best I can do

Previous Thread
Index
Next Thread


© 1998-2019 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide
Powered by UBB.threads™ PHP Forum Software 7.7.3