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NkyLawncare
10-03-2009, 12:02 AM
I have 3 walk behind mowers all with the Kawasaki FH541V KAI 17 hp engine. 2 of the engines start on first pull everytime. The 3rd one takes 5-6 to start in the mornings and after it sits for an hour or so and cools down. I've tried choking and not choking and both are same. The only difference with the engine that doesn't start as easily is that it hasn't been used as much. The 2 engines that start well we use almost everyday. The engine that doesn't start well only gets used about once every 10 days or so. I've replaced the spark plugs but the old ones looked fine. The engine that is hard to start only has 20 hours or so on it but it is 2 years old.

Please help.

NkyLawncare
10-03-2009, 12:23 AM
bump to top

jhawk60
10-03-2009, 12:31 AM
I would run some seafoam through it to clean the fuel system and carb if it has only been used 20 hours in 2 years, could be a little gunked up.

NkyLawncare
10-04-2009, 01:52 PM
Thanks Jhawk. How do you do it? Just pour that stuff into the gas and oil?

jhawk60
10-04-2009, 04:09 PM
Put it in the gas to clean the fuel system. I've used it with good effect. I have not used it for the oil yet, but I think I may put some in my WB before the next oil change.

NkyLawncare
10-06-2009, 09:27 PM
I had a thread on here last week asking about a Kawasaki engine that was hard to start. I put some seafoam in the engine and ran it for a little while but still need to run the gas out of the mower to run all of the seafoam through. I went out to start and run again this morning and now the string pull won't even pull out at all. I ran and mowed with the mower just last night and it ran beautifully. Has anyone had this type of problem and what was the cure? I'm calling the dealer tomorrow concerning warranty but thought I'd get an idea of what it is before I talk to him. Any input would be greatly appreciated. The mower literally has 25 to 30 hours max on it. I have 2 other exact same engines with a bunch more hours than this one that start and run flawlessly. Its a kawasaki KAI series 17hp twin V engine.

Thanks in advance

puppypaws
10-06-2009, 09:40 PM
I had a thread on here last week asking about a Kawasaki engine that was hard to start. I put some seafoam in the engine and ran it for a little while but still need to run the gas out of the mower to run all of the seafoam through. I went out to start and run again this morning and now the string pull won't even pull out at all. I ran and mowed with the mower just last night and it ran beautifully. Has anyone had this type of problem and what was the cure? I'm calling the dealer tomorrow concerning warranty but thought I'd get an idea of what it is before I talk to him. Any input would be greatly appreciated. The mower literally has 25 to 30 hours max on it. I have 2 other exact same engines with a bunch more hours than this one that start and run flawlessly. Its a kawasaki KAI series 17hp twin V engine.

Thanks in advance

Sounds like there is a possibility you bought a lemon, hope not!

Tharrell
10-07-2009, 02:06 AM
Pull the spark plugs and see it it turns. If it does, your carb leaked fuel into the cylinders. That's about all I can think of. Tony

topsites
10-07-2009, 04:23 AM
If I drop Coleman lighter fluid and Isopropyl rubbing alcohol in my gas tank, do you think it will hurt the engine?

Because that's what's inside that bottle of Seafoam, and it probably didn't hurt the engine, but I also don't think it helped it any.

NkyLawncare
10-07-2009, 09:47 AM
Any suggestions Topsites? Has anyone ever experienced this before?

GraZHopA
10-07-2009, 10:02 AM
Don't panic yet! Do as someone else said and take the spark plugs out. If you can turn the engine you are probably ok. If you can't turn it, then you may have a recoil start problem. This is fixable. If the recoil start is ok, then you probably have a big problem.

JayD
10-07-2009, 06:06 PM
My dealer was just telling about Kaw having problems with the coils on the last two years models. Your dealer will more than likely know.

Tharrell
10-11-2009, 09:06 AM
Figure out what the problem is yet?

NkyLawncare
10-11-2009, 03:25 PM
Taking it to the dealer tomorrow. Will update this thread when I find out for sure what it is. I did pull the plugs and was able to crank it after that. I spoke with Snapper who referred me to Kawasaki who in turn wouldn't talk to me because I wasn't a dealer. I'm taking it to my dealer tomorrow.

JoeinJasper
10-11-2009, 07:58 PM
I just had both ignition modules replaced on my 1 year old (200-300 hrs) 17 hp KAWI. They were both weak, the engine would run on either plug, but it was weak and would vapor lock so that I had to pull a plug to release the pressure. It sounds like your are having the same problems that I had.

Joe

Tharrell
10-12-2009, 10:10 AM
Get an inline spark tester or two, they come in very handy. If it's under warranty, let the dealer handle it but, learn from these things because it won't always be under warranty and the dealer charges are high. Lawnsite is great for that because there's not much that we can't figure out. Tony

ricky86
10-13-2009, 01:46 AM
I just had both ignition modules replaced on my 1 year old (200-300 hrs) 17 hp KAWI. They were both weak, the engine would run on either plug, but it was weak and would vapor lock so that I had to pull a plug to release the pressure. It sounds like your are having the same problems that I had.

Joe

Did the pressure come out the plug hole when you removed it?

JoeinJasper
10-13-2009, 08:04 AM
Yes. It would relieve the pressure and start & run on the one plug.
Joe