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PWC Forum : Misfire

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1 anti-syphon valve cause misfire???? Mercruiser I/O & Inboard Engines & Outdrives
5 1973 I6 165hp timing ? to correct misfire/stumble Mercruiser I/O & Inboard Engines & Outdrives
8 misfire on jw16 Johnson & Evinrude Outboards
4 1994 100 hp mercury - misfire @ Low RPMS Mercury & Mariner Outboards
0 Engine random misfire Johnson & Evinrude Outboards
16 1976 Evinrude 9.9Hp Misfire Johnson & Evinrude Outboards
39 yamaha 40hp misfire Yamaha & Suzuki Outboards
4 1981 Johnson 75hp outboard rough idle/misfire on accel/decel J75TRLC1M Johnson & Evinrude Outboards
4 2000 90hp Johnson OceanPro misfire Johnson & Evinrude Outboards
5 1985 e150tlcos compression/misfire Johnson & Evinrude Outboards
4 Yamaha 90hp 2 stroke 1997 - misfire/rough idle at low revs and strong exhaust smell Yamaha & Suzuki Outboards
2 25hp 4 stroke big foot misfire at high revs Mercury & Mariner Outboards
0 25hp 4 stroke big foot misfire at high revs Mercury & Mariner Outboards
0 25hp 4 stroke big foot misfire out high revs Mercury & Mariner Outboards
1 98 gtx rfi misfire PWC (Jetskis, Waverunners, etc.)
1 1984 90 h.p. inline six mercury misfire problem Mercury & Mariner Outboards
2 2001 5.7 gsi surging and misfire @ high rpm Volvo Penta I/O & Inboard Gas Engines & Outdrives
0 Misfire at wot Yamaha 700 motor PWC (Jetskis, Waverunners, etc.)
3 1984 Invader engine rough idle and misfire Mercruiser I/O & Inboard Engines & Outdrives
1 goopy mess dripping from stator??? 73' evin 85 *misfire* Johnson & Evinrude Outboards
2 1999 Volvo Penta 3.0l developed misfire Volvo Penta I/O & Inboard Gas Engines & Outdrives
3 1972, 45 HP with Misfire Force & Chrysler Outboards
1 150 yamaha misfire @ Wot Yamaha & Suzuki Outboards
2 1999 johnson 115 hp misfire Johnson & Evinrude Outboards
7 Quick: 70HP 2-stroke Misfire at part and WOT Yamaha & Suzuki Outboards
4 Misfire perhaps? Force & Chrysler Outboards
1 1984 Johnson 60 misfire Johnson & Evinrude Outboards
1 1973 Johnson 20HP bottom cylinder misfire Johnson & Evinrude Outboards
4 60 HP Mercury 2 stroke outboard has lean misfire Mercury & Mariner Outboards
0 2004 mercury 90hp misfire Mercury & Mariner Outboards
2 Misfire at WOT on 115hp Johnson V4, powerpack?? Johnson & Evinrude Outboards
0 Please help!! '82Merc 50hp misfire! Mercury & Mariner Outboards
8 lean misfire at idle Johnson & Evinrude Outboards
8 140 johnson outboard misfire at idle Johnson & Evinrude Outboards
0 1991 johnson140hp misfire at idle Johnson & Evinrude Outboards
16 Scored Piston Causing Engine To Misfire (See Pictures) Johnson & Evinrude Outboards
10 1977 140Hp Evinrude Misfire Problem,wont Rev-up Johnson & Evinrude Outboards
4 1996 Evinrude 28hp Misfire Johnson & Evinrude Outboards
12 Got a severe misfire that I cant figure out. Clinton K751 7.5hp Seaking Other Outboard Brands
7 2001 350 mag mpi slight misfire Mercruiser I/O & Inboard Engines & Outdrives
34 97 Mercruiser 5.7 slight misfire Mercruiser I/O & Inboard Engines & Outdrives
5 2003 Johnson 175 - Misfire and low compression SEE PIC Johnson & Evinrude Outboards
3 1998 75hp Force misfire Force & Chrysler Outboards
9 Mercury 115 Hp 4stoke low rpm misfire Mercury & Mariner Outboards
9 3.7 Misfire Mercruiser I/O & Inboard Engines & Outdrives
14 1990 Force 120~Intermittent misfire back to my original probleml hundreds of $$ later Force & Chrysler Outboards
2 98 Ficht- misfire - injector or plug wire Johnson & Evinrude Outboards
44 Mystery cylinder problem, HELP needed! 1971 Evinrude Misfire on idle Johnson & Evinrude Outboards
2 1997 OMC BADGED VOLVO PENTA 5.7l GLi MISFIRE UNDER LOAD Volvo Penta I/O & Inboard Gas Engines & Outdrives
0 need help with misfire diagnosis, 4 cyl. merc Mercury & Mariner Outboards
9 A month in the shop, and they still can't find the intermittent misfire issue Mercury & Mariner Outboards
0 Please help - Why does my Mariner 50 HP four stroke misfire at low revs? Mercury & Mariner Outboards
13 1991 Johnson 40hp Misfire when warm Johnson & Evinrude Outboards
0 1990 merc 5.7 backfire-misfire Mercruiser I/O & Inboard Engines & Outdrives
2 NS25A #3 cylinder misfire Honda & Tohatsu/Nissan Outboards
1 Johnson VRO 140 misfire Johnson & Evinrude Outboards
1 1986 Johnson 110 hp.. has rough idle any ideas how to fix a misfire? Johnson & Evinrude Outboards
3 Just bought a boat; yet it 2 problems... rides high in front; and feels like misfire Volvo Penta I/O & Inboard Gas Engines & Outdrives
2 Misfire on 175 ficht please help Johnson & Evinrude Outboards
2 Johnson QD -16 top cylinder misfire Johnson & Evinrude Outboards
9 Baffled and driven to drink- 1999 Force 75 misfire? Force & Chrysler Outboards
5 383 Mercruiser Misfire... Mercruiser I/O & Inboard Engines & Outdrives
6 Volvo/Penta 4.3 Engine Misfire - Need Help Volvo Penta I/O & Inboard Gas Engines & Outdrives
3 Mid range misfire Johnson & Evinrude Outboards
0 Yamaha 60HP Outboard Low RPM Misfire Troubles Yamaha & Suzuki Outboards
5 1997 60Hp Johnson misfire at idle and low RPMS Johnson & Evinrude Outboards
8 1997 20hp Misfire cyclinder #1 Johnson & Evinrude Outboards
0 1998 50 HP Johnson misfire Johnson & Evinrude Outboards
17 Evinrude Misfire Johnson & Evinrude Outboards
6 1979 150HP started to shutter/misfire yesterday Johnson & Evinrude Outboards
12 99 70hp Temp sensor misfire Johnson & Evinrude Outboards
4 1990 60 evinrude vro misfire at mid to high rpms Johnson & Evinrude Outboards
14 Overheat, Low Oil Pressure, and misfire? Mercruiser I/O & Inboard Engines & Outdrives
17 I've STILL got a misfire...plz help! Johnson & Evinrude Outboards
3 Sports Jet 175 engine misfire / dying PWC (Jetskis, Waverunners, etc.)
2 2000 Volvo 5.0GL periodic misfire?? Volvo Penta I/O & Inboard Gas Engines & Outdrives
6 115HP Inline Six Misfire Mercury & Mariner Outboards
2 Evinrude misfire and overheat Johnson & Evinrude Outboards
5 25 johnson,big misfire under load Johnson & Evinrude Outboards
13 Mercuiser 5.7L with Thunderbolt V misfire after warmup will not go over 2800 rpm Mercruiser I/O & Inboard Engines & Outdrives
4 Johnson 90 hp v4 misfire and power problem Johnson & Evinrude Outboards
2 1970 Johnson 85, seems to misfire after engine warms up Johnson & Evinrude Outboards
2 1998 optimax misfire Mercury & Mariner Outboards
5 Misfire Mercruiser I/O & Inboard Engines & Outdrives
4 73 evinrude 115 v4 misfire Johnson & Evinrude Outboards
0 Johnson 40hp 1996 Misfire above 2400rpm Johnson & Evinrude Outboards
9 Evinrude 1980 60hp misfire Johnson & Evinrude Outboards
0 Evinrude 70 hp misfire Johnson & Evinrude Outboards
2 89' 85hp force high end misfire Force & Chrysler Outboards
6 1990 Force 120 Lean Misfire Force & Chrysler Outboards
14 Trimming Causing Misfire? 3.0L Alpha 1 Mercruiser I/O & Inboard Engines & Outdrives
1 Misfire or tach or other electrical prob? Mercruiser I/O & Inboard Engines & Outdrives
2 Backfire/misfire Mercruiser 5.0 EFi Mercruiser I/O & Inboard Engines & Outdrives
2 57 Evinrude Fastwin 18 Misfire. Whats Wrong? Johnson & Evinrude Outboards
5 225hp offshore timing problem/misfire/flywheel runs backwards Mercury & Mariner Outboards
3 1986 Evinrude 60 HP misfire Johnson & Evinrude Outboards
0 Misfire on Moderate Acceleration Mercruiser I/O & Inboard Engines & Outdrives
4 15hp Chrysler Misfire - Need help Force & Chrysler Outboards
4 Misfire Cylinder 2000 Wellcraft Fish 180 CC Johnson & Evinrude Outboards
6 sparkplug wire removal/misfire check Mercury & Mariner Outboards
12 92 omc 5.7 mid-range stumble/misfire Mercruiser I/O & Inboard Engines & Outdrives
19 Mercruiser misfire Mercruiser I/O & Inboard Engines & Outdrives
12 89 50hp force misfire 2 ~ 2500rpm Force & Chrysler Outboards
6 1997 30 hp misfire Yamaha & Suzuki Outboards
3 Johnson 30hp slight misfire Johnson & Evinrude Outboards
0 2007 4 stroke EFI misfire or missing Mercury & Mariner Outboards
8 1964 Johnson 40HP bucking, misfire, bogging problems... Johnson & Evinrude Outboards
2 Do I have an optical ignition sensor? (225 misfire) Johnson & Evinrude Outboards
4 Johnson 2000 115 ocean pro misfire Johnson & Evinrude Outboards
8 1998 Searay 240DA Mercruiser 5.0 TBI WOT misfire Mercruiser I/O & Inboard Engines & Outdrives
6 95 honda 25 hp tiller misfire. Honda & Tohatsu/Nissan Outboards
6 1988 Johnson 110 Misfire and cooling issue. Johnson & Evinrude Outboards
29 Engine misfire when starting kills engine? Force & Chrysler Outboards
0 1988 Yamaha 150 Pro V misfire 1 cyl. Yamaha & Suzuki Outboards
0 johnson 33 misfire ? Johnson & Evinrude Outboards
4 90 hp johnson stutter/misfire above 4000rpm Johnson & Evinrude Outboards
3 misfire Mercruiser I/O & Inboard Engines & Outdrives
3 1958 35hp johnson misfire help please Johnson & Evinrude Outboards
0 Nissan 15hp misfire? Honda & Tohatsu/Nissan Outboards
13 2000 5.7L Volvo GSI loud knocking and misfire Volvo Penta I/O & Inboard Gas Engines & Outdrives
2 Mercruiser 3.0l engine misfire Mercruiser I/O & Inboard Engines & Outdrives
1 1986 3 cylinder 30hp misfire/stalls Yamaha & Suzuki Outboards
0 Yam 9.9 4-stroke misfire Yamaha & Suzuki Outboards
1 engine misfire Mercruiser I/O & Inboard Engines & Outdrives
1 1999 OX66 250TURX high speed misfire Yamaha & Suzuki Outboards
10 28 SPL engine misfire Johnson & Evinrude Outboards
4 1999 OX66 S250TURX Random Misfire Yamaha & Suzuki Outboards
4 5.7 Omc Cobra...misfire In 4 Cylinders..ideas? OMC I/O & Inboard Engines & Outdrives
1 2004 75HP Merc 4-stroke low speed misfire Mercury & Mariner Outboards
3 1991 60hp Johnson Misfire Johnson & Evinrude Outboards
4 1992- 70hp/force ,misfire Force & Chrysler Outboards
0 Intermittent Misfire on 1996 200 hp Evinrude Johnson & Evinrude Outboards
0 2000 200 evinrude ficht problem (misfire/fuel)HELP??? Johnson & Evinrude Outboards
1 Misfire "66" Evenrude 18 Johnson & Evinrude Outboards
9 260 Merc Instant Misfire!! Mercruiser I/O & Inboard Engines & Outdrives
12 130 HP Johnson - 1995 - Bad Misfire - Need Help Johnson & Evinrude Outboards
3 79 115 misfire Mercury & Mariner Outboards
4 Merc 350 misfire Mercruiser I/O & Inboard Engines & Outdrives
2 Engine misfire Force & Chrysler Outboards
0 misfire dt25 Yamaha & Suzuki Outboards
9 1990 OMC 2.3L sputter/misfire fuel/ignition? Mercruiser I/O & Inboard Engines & Outdrives
1 Johnson 9.5 1968 - Misfire/slow Johnson & Evinrude Outboards
1 Mercruise 3.7 Misfire Mercruiser I/O & Inboard Engines & Outdrives
2 1994 mariner 225 misfire Mercury & Mariner Outboards
2 1988 110 misfire during acceleration?? Johnson & Evinrude Outboards
1 1994 J 150 misfire Johnson & Evinrude Outboards
3 '74 Johnson 9.9 misfire Johnson & Evinrude Outboards
0 Mercury 50 2 Stroke Misfire Associated With Smoke Mercury & Mariner Outboards
1 slight misfire on #1 cyl mariner 40hp 2stroke Mercury & Mariner Outboards
4 Advice Please!!! 1975 Evinrude 75 HP Misfire. Johnson & Evinrude Outboards
8 1987 force 125 misfire after warmed up Force & Chrysler Outboards
0 1974 115hp Johnson - Slight misfire at idle Johnson & Evinrude Outboards
0 89 Mariner 100 Misfire Mercury & Mariner Outboards
5 75hp Mariner 4cyd 2 storke 1986, Misfire but has Spark Mercury & Mariner Outboards
5 engine misfire Yamaha & Suzuki Outboards
0 Evinrude misfire Johnson & Evinrude Outboards
5 Need help with Evinrude 30hp misfire Johnson & Evinrude Outboards
4 1990 5hp 2stroke rough idling/misfire Mercury & Mariner Outboards
5 NEED HELP!!! Had a misfire and can't figure where it came from Boat Topics and Questions (not engine topics)
2 Misfire condition please help Mercury & Mariner Outboards
3 Honda BF90 - Stumble and misfire fixed -- long Honda & Tohatsu/Nissan Outboards
0 1999 9.9 4 stroke evinrude high speed misfire Johnson & Evinrude Outboards
0 misfire from stator ? 1990 200 hp rude Johnson & Evinrude Outboards
7 slight misfire/ Ignition? Fuel? Johnson & Evinrude Outboards
5 Cold Misfire Mercury & Mariner Outboards
1 surge sound vs. misfire need help Johnson & Evinrude Outboards
1 merc 115 engine misfire Mercury & Mariner Outboards
2 Chrysler 55 HP misfire Force & Chrysler Outboards
1 Mercruiser 3.0L stalls/misfire when turning boat Mercruiser I/O & Inboard Engines & Outdrives
1 Mid Range Misfire At 1500 Rpm Mercruiser Ecm Mefi- Mercruiser I/O & Inboard Engines & Outdrives
10 1988 johnson 90 misfire Johnson & Evinrude Outboards
2 Misfire after winterisation Mercruiser I/O & Inboard Engines & Outdrives
11 Cylinder Misfire Mercury & Mariner Outboards
1 1984 90 hp evinrude sneeze/hicup or misfire ? Johnson & Evinrude Outboards
0 2005, 9.9 2 stroke Merc, misfire at specific RPM Mercury & Mariner Outboards
3 Yamaha 30hp Engine misfire & lacks power Yamaha & Suzuki Outboards
3 misfire Johnson & Evinrude Outboards
6 rattle/misfire/gear sound during deceleration Johnson & Evinrude Outboards
1 1988 Evinrude 25/water in #2 cyl./Engine misfire #2 Johnson & Evinrude Outboards
9 1989 85hp Force O/B has a misfire during idol Force & Chrysler Outboards
8 50hp Merc misfire on 1 cylinder? Mercury & Mariner Outboards
6 YAMAHA 40 INTERMITTANT MISFIRE PLEASE HELP!!!!!!!!!!!!!!!!!!!! Yamaha & Suzuki Outboards
4 2000 90HP Johnson random misfire/cough Johnson & Evinrude Outboards
8 Tohatsu 15hp misfire Honda & Tohatsu/Nissan Outboards
6 MisFire on F225TURA Yamaha & Suzuki Outboards
3 v8 misfire Mercruiser I/O & Inboard Engines & Outdrives
5 serious misfire on replaced engine Mercruiser I/O & Inboard Engines & Outdrives
0 1975 Evenrude 85HP misfire?? Johnson & Evinrude Outboards
0 Rough idle/misfire 1993 evinrude op 120 Johnson & Evinrude Outboards
3 '92 OMC 5.0L Ford Misfire OMC I/O & Inboard Engines & Outdrives
8 starts to misfire after 10 minutes top end Force & Chrysler Outboards
3 misfire and backfire Johnson & Evinrude Outboards
2 starts to misfire after 10 minutes top end Non-Repair Outboard Discussions
3 Evinrude misfire Johnson & Evinrude Outboards
4 Misfire update Mercruiser I/O & Inboard Engines & Outdrives
3 88special Johnson 95 model misfire Johnson & Evinrude Outboards
2 88 Johson misfire on idle. Johnson & Evinrude Outboards
0 random misfire Johnson & Evinrude Outboards
2 2002 75 Honda misfire Honda & Tohatsu/Nissan Outboards
3 Water ingress/misfire Johnson & Evinrude Outboards
4 Cylinders misfire when RPM low PWC (Jetskis, Waverunners, etc.)
6 HONDA 50 MISFIRE - HELP ME!!! Honda & Tohatsu/Nissan Outboards
5 Loss of power & misfire when Trim button is pushed Mercruiser I/O & Inboard Engines & Outdrives
1 2000 Merc 40/ 4 stroke misfire at idle Mercury & Mariner Outboards
1 1985 Suzuki 55hp chirp and misfire Yamaha & Suzuki Outboards
0 1999 15hp merc 4-stroke misfire Mercury & Mariner Outboards
1 1979 115 HP Chrysler outboard misfire Force & Chrysler Outboards
0 high speed misfire 175hp Johnson & Evinrude Outboards
5 1977 115 HP Misfire (Power Pack) Johnson & Evinrude Outboards
6 2000 Evinride 225 Ram Ficht Misfire Johnson & Evinrude Outboards
3 Misfire with my Suzuki dt140. Yamaha & Suzuki Outboards
1 Mercury Motor misfire Mercury & Mariner Outboards
2 CDI?? Yamaha 50ELRS Wet Lower Cylider Misfire Yamaha & Suzuki Outboards
0 1996 50hp misfire Johnson & Evinrude Outboards
0 1996 50 Evinrude Misfire Johnson & Evinrude Outboards
2 Yamaha 9.9 4-stroke high speed misfire Yamaha & Suzuki Outboards
7 Suzuki DT 100 misfire on high speeds Yamaha & Suzuki Outboards
1 1989 Suzuki DT-140 misfire??? Yamaha & Suzuki Outboards
1 Big Twin low speed misfire problem Johnson & Evinrude Outboards
2 1975 Evinrude 25HP Misfire? Johnson & Evinrude Outboards
0 40hp yamaha misfire at 3/4 throttle Yamaha & Suzuki Outboards
3 misfire Johnson & Evinrude Outboards
0 1966 misfire Force & Chrysler Outboards
3 Mercruiser Engine Misfire-Man Over Board Mercruiser I/O & Inboard Engines & Outdrives
2 Mercury Marine outboard misfire Mercury & Mariner Outboards
0 Merc 200 misfire Mercury & Mariner Outboards
1 Evinrude Angler Misfire Johnson & Evinrude Outboards
1 Yamaha 40hp develops misfire when warm. Yamaha & Suzuki Outboards