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I have a 140 4 stroke. It was great when just starting then
I have a Johnson 140 4 stroke. It was great when just starting then after a while it starts to loose all power and then will catch up and keep doing this. It will not shut completely down, just loose … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
60 hp "2000" idles fine at first after bringing it up to
60 hp "2000 " idles fine at first after bringing it up to half to full throttle it boggs down nd dies. Hard to restart. I replaced the gas completely ( thier was water ) I replaced the fuel pump. Than… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
I have a 2005 9.9 four stroke outboard that I use on my sail
I have a 2005 Johnson 9.9 four stroke outboard that I use on my sail boat. It was used but only had a bout 10 hours on it and looked like new, ran like crap because the guy never used it and the carb … read more
Joe
Joe
Owner Kingsland Auto & Marine Services
Vocational, Technical or Trade Scho
1,396 satisfied customers
Answers from Two Experts requested: Hello, I own a 2005 8 HP Johnson 2 stroke outboard mot
Hello, I own a 2005 8 HP Johnson 2 stroke outboard motor. The motor starts fine and runs great at low (trolling) speed but when I throttle it up it won't get on plane and throttles itself back down to… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
I just bought a used 70HP Johnson 4 stroke outboard. The model
I just bought a used 70HP Johnson 4 stroke outboard. The model # XXXXX XXXXX and the serial # XXXXX XXXXX The title says 2003 and a plate on the motor says 2002. I'm trying to look up parts on line an… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
I have a 2000 50 HP 2 cylinder 2 stroke Johnson Outboard.
I have a 2000 50 HP 2 cylinder 2 stroke Johnson Outboard. Last year the impeller went and the motor overheated. I replaced the impeller and it starts fine and revs fine in neutral. It won't go over 30… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
I have a Johnson 90HP Four Stroke Fuel Injection Engine. Model
I have a Johnson 90HP Four Stroke Fuel Injection Engine. Model J90PL4ST. Engine starts right up, idles great, but when you go above 3000 rpm it boggs down, rpm's drop to about 1000, doesn't stall in i… read more
davesoutboard
davesoutboard
owner
Associate Degree
1,570 satisfied customers
My 70 hp outboard runs OK up to 2500 rpm and then if you try
My 70 hp outboard runs OK up to 2500 rpm and then if you try to push it over that it sputters at 3000 and then will run up to 4500 for a second or two and then back down to 3000. If you back off to 25… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
2002 140 hp four stroke johnson outboard. starts east---runs
2002 140 hp four stroke johnson outboard. starts east---runs fine until 2,800 rpms---starts missing---running rough--vibrating. reduce to 2,800 rpms or less smooths out and sounds normal… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
I have a 2005 70 HP four-stroke and it stopped peeing on the
I have a 2005 70 HP four-stroke and it stopped peeing on the left hole. I cleaned the screens (seaweed) but no peeing yet. I removed the plug on the right side next to the left pee hole and water come… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
suzuki 200 4 stroke, outboard motor, back fired on start up,
suzuki 200 4 stroke, outboard motor, back fired on start up, on the retry started up but revs straight to 3000 rpms and then fluctuates between 3000 and 2000, wont take throttle when applied and givin… read more
Master Tech
Master Tech
Service Manager/Technician
Vocational, Technical or Trade Scho
1,167 satisfied customers
suzuki 200 4 stroke, back fired on start up, on the retry started
suzuki 200 4 stroke, back fired on start up, on the retry started up but revs straight to 3000 rpms and then fluctuates between 3000 and 2000, wont take throttle when applied and giving a code of two … read more
Master Tech
Master Tech
Service Manager/Technician
Vocational, Technical or Trade Scho
1,167 satisfied customers
I had a 14 foot fishing boat with a 33 hp 2 stroke short
I had a 14 foot fishing boat with a 33 hp 2 stroke short shaft Johnson outboard. Now I want to replace a 4 stroke outboard, but I have few questions to ask before to change. How many hp I have to choo… read more
Master Tech
Master Tech
Service Manager/Technician
Vocational, Technical or Trade Scho
1,167 satisfied customers
I have an outboard motor. It is a 2003 Johnson 90 HP 4 stroke.
I have an outboard motor. It is a 2003 Johnson 90 HP 4 stroke. I put in fresh oil and the oil is contaminated with gas after a few hours of use. It is also bogging down at approx. 2800 RPMs.… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
I have a 2004 140 HP 4 stroke Johnson Outboard Motor. The
I have a 2004 140 HP 4 stroke Johnson Outboard Motor. The motor will stall if I exceed 3000 rpm. I have changed the fuel filter leading to the low pressure fuel pump and the low pressure fuel pump. Th… read more
Master Tech
Master Tech
Service Manager/Technician
Vocational, Technical or Trade Scho
1,167 satisfied customers
1991 Johnson 70 hp outboard. Running very ruff. when I took
1991 Johnson 70 hp outboard. Running very ruff. when I took it out on the water this weekend it would only do 3000 rpm and 8 knots, then with some perswation of the throtle ( jacking it up and down an… read more
Pappy's Sales and Service
Pappy's Sales and Service
Vocational, Technical or Trade Scho
586 satisfied customers
I have a 70 hp 4 stroke johnson outboard motor installed on
I have a 70 hp 4 stroke johnson outboard motor installed on a 16' Mchee craft cc that has a rating of 135 hp. My problem is that at full throttle it only turns 3000rpm and won't get enough speed to pl… read more
Dr. Joe
Dr. Joe
Bachelor's Degree
198 satisfied customers
What prop should I use on a 4 stroke Johnson 30 HP outboard
What prop should I use on a 4 stroke Johnson 30 HP outboard motor at 6,000 ft elevation? It is a 2005 outboard model.… read more
davesoutboard
davesoutboard
owner
Associate Degree
1,570 satisfied customers
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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