Besides timing, can anyone tell me other reasons for a 1990 120hp V4 OMC
to backfire on # 3 cylinder. Just looking for some other things to check out.
Thanks.
Type: Posts; User: EtecRanger 205
Besides timing, can anyone tell me other reasons for a 1990 120hp V4 OMC
to backfire on # 3 cylinder. Just looking for some other things to check out.
Thanks.
I feel for you, 1 3/4 turns out is correct for that motor. I have had the same problem with my sons motor for a long time. I found some 200hp carbs and they idle fine and also help in the top end. I...
Seahorse, Thanks I did have the waterpump off and was checking that seal. And I could wiggle the driveshaft underpressure and is would spit from there. I just thought that once I put the water pump...
Ok I checked and I need two "O" rings for shift rod, that may be my problem. I will try that. Thank so much for everyone's help. This is a really great board to solve problems. I enjoy rading the...
Thanks I called them and they are going to hook me up and a very good price.... http://www.bassboatcentral.com/smileys/USA1.gif
I have been working on my sons lower unit. 1994 60 degree 150 Johnson.
I have pressure tested both in and out pressure. We are still getting water in the unit. The oil is coming out of the top of...
Thanks, Ive heard of them.. http://www.bassboatcentral.com/smileys/USA1.gif
Any recommendations of which shop. I'm already out a bunch, but want to make this right for the solider. Thanks http://www.bassboatcentral.com/smileys/USA1.gif
Trying to do a favor for a soldier serving his county. 1990 Johnson 120 hp
Model:VJ120TLASB Ser:G02514777. Had two bad cylinders, took to machine shop and had three honed and one bored .30 over....
Musky,
Need more information about the motor, is it fuel injected or carb???
Its probably not electrical, except it going into safe mode. The first thing I would do is compression check to see if...
The oil injection system can be removed from this motor. There is a sepreate line that oils the top and bottom bearings. I have had two of these motors and both have had the oil systems removed. The...
There are two adjustments that need to be made. 1st if the timing idle adjustment on the side of the motor, by the oil reset button. It adjusts the idle timing and will turn up the idle speed. Also...
The dealer will do any checks that you request. The computer info will tell
you hours, rpm, and heat ranges. The can also do a compression test.
I have a 06 225ho and love it, no problems to speak...
You should be ok as it takes awhile for the motor to get through all the heads and thermostats. If the red lights went off and the motor started peeing you should be OK. Good luck
As I found out gapping is very important to the Etec's. Mine ran rough and missed at 2500-3000rpms. Regapped the plugs and everything smoothed
out like it should......
Can you give more information, such as WOT RPMS, height from the bottom of the boat to the center of gear housing. Any idea how much weight your pushing??? Thanks ...
Yes the motor will run without the sensors. I'm not sure that they will cause the motor to run on 3 cyl. only. I believe that they cause the motor
to shut down to a low RPM due to lack of water...
If you pressed the hot to half throttle when the motor is running, my guess
you must have hit the rev limited. I hope someone chimes in here and tells how to do it, as I have to do mine, done till...
I know that you need to put in stabil for your fuel. But when you store your boat, should your oil tank be full, empty or does it not matter????
I think that if you take the rubber part off the control box there is a number
on the end of the switch, that will be your key number. Then go to your dealer and they should be able to get one for...
I'm sure the experts will chime in on this, but I have a 2006 225HO and my dealer said that they changed the setting to XD-50 to make sure the motor was getting enough oil when running the XD-100 or...
Thanks to Seahorse, the motor ran fine and was smooth through all the ranges. The plug gap was the problem. Thanks Again.. http://www.bassboatcentral.com/smileys/USA1.gif
Well I check my plugs and they were all indexed OK, but three had gaps of
.40+ so I re gapped them and hope that will help my problem. I'll keep you posted. Thanks ...
No prop is OK. I don't have a problem with getting on plane. The motor is the same except when I get on plane, and cruise at 3KRPM the motor
misses/surges. I can also feel a very bad miss, not the...
Positive it's not a prop problem. As the boat is up on plane and if I back off
to 3K RPM it starts missing/surgeing. I will have my dealer do a computer check and I think the plug idea may be...