SRT8 smoker craft Posted August 21, 2012 Report Share Posted August 21, 2012 I fished a tourney on st clair sunday and on the way out we were running 40mph and the motor bogged and we went down to 25mph but it sounded normal just no power , when we slow down you can feel the 3rd cylynder kick back on and start powering the boat it works fine at idle but as soon a you throttle it it boggs down I think it's a coil/plug or a carb/fuel prob . I am just looking for advice before I take it in hope this is the end of my engine issues it's only a year and a half old Link to comment Share on other sites More sharing options...
ecmilley Posted August 21, 2012 Report Share Posted August 21, 2012 change your plugs then go from there Link to comment Share on other sites More sharing options...
Spiel Posted August 21, 2012 Report Share Posted August 21, 2012 I had a bad coil giving me similar issues once, good place to start. Link to comment Share on other sites More sharing options...
misfish Posted August 21, 2012 Report Share Posted August 21, 2012 it's only a year and a half old WARRANTY? Link to comment Share on other sites More sharing options...
davey buoy Posted August 21, 2012 Report Share Posted August 21, 2012 I'd start with the plug,swap coils if easy enough,than you'll know if you have a greater problem. 2 stroke ,right?. Link to comment Share on other sites More sharing options...
Lunker Larry Posted August 21, 2012 Report Share Posted August 21, 2012 If it is still under warranty, don't go fiddling around with it. There may be a known problem with an immediate fix. Playing around with it yourself may violate your warranty or take an easy warranty fix and turn it into a real headache. About the only thing you can do without violating your warranty is the plugs. Easy enough to narrow down the cylinder if you want to but don't go changing coils or the like. Good luck. Motor issues really bum me out. Link to comment Share on other sites More sharing options...
danbouck Posted August 21, 2012 Report Share Posted August 21, 2012 Warranty is up Link to comment Share on other sites More sharing options...
misfish Posted August 21, 2012 Report Share Posted August 21, 2012 Warranty is up One and a half year later??????????? Link to comment Share on other sites More sharing options...
davey buoy Posted August 21, 2012 Report Share Posted August 21, 2012 (edited) If it is still under warranty, don't go fiddling around with it. There may be a known problem with an immediate fix. Playing around with it yourself may violate your warranty or take an easy warranty fix and turn it into a real headache. About the only thing you can do without violating your warranty is the plugs. Easy enough to narrow down the cylinder if you want to but don't go changing coils or the like. Good luck. Motor issues really bum me out. Larry,we don't know when he bought it exactly?, I'd still do a quick coil change if necessary, the problem cyl will be wet. Quick coil swap,no ONE will know the diff except for us .lol. Edited August 21, 2012 by davey buoy Link to comment Share on other sites More sharing options...
Dan668 Posted August 21, 2012 Report Share Posted August 21, 2012 Wasnt your rig new from last year? Shouldve gotten 5 years on the merc Link to comment Share on other sites More sharing options...
mercman Posted August 21, 2012 Report Share Posted August 21, 2012 MERC IS 5 YEARS FROM 2010 ON. Check your bill of sale. Link to comment Share on other sites More sharing options...
davey buoy Posted August 21, 2012 Report Share Posted August 21, 2012 (edited) MERC IS 5 YEARS FROM 2010 ON. Check your bill of sale. As Victor says "Well l'll be damned".. On at 4:30. lol. I know you watch it!!!!!!!!!!!. Edited August 21, 2012 by davey buoy Link to comment Share on other sites More sharing options...
SlowPoke Posted August 21, 2012 Report Share Posted August 21, 2012 Wasnt your rig new from last year? Shouldve gotten 5 years on the merc Probably a camp motor. Link to comment Share on other sites More sharing options...
SRT8 smoker craft Posted August 21, 2012 Author Report Share Posted August 21, 2012 No it was a brand new 2 stroke warranty is only 1 year factory and the offer up to 5 years extended for $2800 which I couldn't justify paying 50% of the retail cost of the motor on extended warranty .Thanks for the imput guys the bottom cylinder is "wet" and I am going to replace the plugs and the coil on the bottom cylinder and hope that's the end of it I have suspected the coils were messing up as it occationally would hesitate while accelerating wish me luck Link to comment Share on other sites More sharing options...
davey buoy Posted August 21, 2012 Report Share Posted August 21, 2012 No it was a brand new 2 stroke warranty is only 1 year factory and the offer up to 5 years extended for $2800 which I couldn't justify paying 50% of the retail cost of the motor on extended warranty .Thanks for the imput guys the bottom cylinder is "wet" and I am going to replace the plugs and the coil on the bottom cylinder and hope that's the end of it I have suspected the coils were messing up as it occationally would hesitate while accelerating wish me luck Also take a close look at the plug wire to the coil. Could be cut or damaged somehow. Link to comment Share on other sites More sharing options...
SRT8 smoker craft Posted August 21, 2012 Author Report Share Posted August 21, 2012 Also take a close look at the plug wire to the coil. Could be cut or damaged somehow. I did inspect the wire but I suspect it is the coil itself from the kicking back in at low rpm's my buddy is a small engine mech and fixes seadoo's regularily I just cant seem to get ahold of him LOL Thanks for the idea's Link to comment Share on other sites More sharing options...
davey buoy Posted August 21, 2012 Report Share Posted August 21, 2012 (edited) I did inspect the wire but I suspect it is the coil itself from the kicking back in at low rpm's my buddy is a small engine mech and fixes seadoo's regularily I just cant seem to get ahold of him LOL Thanks for the idea's I'm with you on the coil,you can't easily swap them to see if a different plug fouls?.At least you'll know more when you talk to him. Just thinking about it a spare coil if that's not the problem ,still not a bad idea. Edited August 21, 2012 by davey buoy Link to comment Share on other sites More sharing options...
SRT8 smoker craft Posted August 21, 2012 Author Report Share Posted August 21, 2012 yes I can do that I unfortunately am on vacay and that doesn't fit into the plans for the week LOL have to wait till labour day weekend to trouble shoot it because it runs normal on the muffs in the drive way ? Link to comment Share on other sites More sharing options...
SlowPoke Posted August 21, 2012 Report Share Posted August 21, 2012 No it was a brand new 2 stroke warranty is only 1 year factory and the offer up to 5 years extended for $2800 which I couldn't justify paying 50% of the retail cost of the motor on extended warranty .Thanks for the imput guys the bottom cylinder is "wet" and I am going to replace the plugs and the coil on the bottom cylinder and hope that's the end of it I have suspected the coils were messing up as it occationally would hesitate while accelerating wish me luck $2800!!!! I don't blame you for passing on that; you can buy a lot of coils for that kinda bread! I guess I'm pretty fortunate getting 6yrs at no additional cost. Good luck with the repair. Link to comment Share on other sites More sharing options...
Tybo Posted August 21, 2012 Report Share Posted August 21, 2012 Bottom plug should be wet.It`s wet from the other cyls draining down.A fouled plug should have heavy carbon build up. Get a spark tester it will make things easier. Link to comment Share on other sites More sharing options...
SRT8 smoker craft Posted August 21, 2012 Author Report Share Posted August 21, 2012 Bottom plug should be wet.It`s wet from the other cyls draining down.A fouled plug should have heavy carbon build up. Get a spark tester it will make things easier. That makes sense and yes it had alot of junk on it when I looked at them they are (plugs) NGK without the bent peice for the spark to jump to (not sure what it's called ) but the the white insulation on the plug has black marks across it . the thing that is bugging me is it works good at idle and just above but bogs when you hit the throttle. Link to comment Share on other sites More sharing options...
DRIFTER_016 Posted August 21, 2012 Report Share Posted August 21, 2012 I did inspect the wire but I suspect it is the coil itself from the kicking back in at low rpm's my buddy is a small engine mech and fixes seadoo's regularily I just cant seem to get ahold of him LOL Thanks for the idea's I had the same issue with my '91 2 stroke this spring. Problem was a bad plug. Been fine since it was replaced. Change it first and if the problem is still there change the coil. Link to comment Share on other sites More sharing options...
SRT8 smoker craft Posted August 21, 2012 Author Report Share Posted August 21, 2012 I had the same issue with my '91 2 stroke this spring. Problem was a bad plug. Been fine since it was replaced. Change it first and if the problem is still there change the coil. Thanks that's re-assuring to hear someone had the same problem I will let ya's know how it works out Link to comment Share on other sites More sharing options...
Handlebarz Posted August 22, 2012 Report Share Posted August 22, 2012 IO had the same thing on my 94 mariner changed the plugs and life was GREAT Link to comment Share on other sites More sharing options...
mike rousseau Posted August 22, 2012 Report Share Posted August 22, 2012 I had that same problem... With my last motor... High speed jet was plugged in my carb.... Seafoam cleaned it out... Heavy heavy dose of seafoam... Link to comment Share on other sites More sharing options...
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