honda heat soak

K

kellaig

Seaman
Joined
Jan 15, 2002
Messages
63
hi guys,<br /><br />i posted this problem a while ago. i have a 2002 tiller 40 Hp honda that has one problem. After it has been ran for a long while and then sits for a while turned off it has a very rough idle when i turn it on again. sometimes it will stall, but if i am lucky enough to get it into gear and increase the rpms everything is fine.<br /><br />It has had its carbies synched and cleaned, and the valve clearance checked. it has done 100 hours.<br /><br />Any suggestions
 
4

45_red

Petty Officer 2nd Class
Joined
Jan 22, 2003
Messages
173
Re: honda heat soak

When this occurs,does choking help or make it worse? Also, any signs of overheating?
 
K

kellaig

Seaman
Joined
Jan 15, 2002
Messages
63
Re: honda heat soak

Hi 45-Red.<br /><br />When i use the choke it will stall. I think it is related to heat but i think the motor gets hot under the cowling whilst it is sitting in the sun. When I use it in winter, or early in the day the problem doesn't occur.<br /><br />Regards
 
S

Skinnywater

Commander
Joined
Mar 7, 2002
Messages
2,065
Re: honda heat soak

kellaig, there has been one heck of a lot of posts previously trying to help you. Of the posts there have been suggestions by other experienced boaters, by fellow Honda owners and by experienced Honda professional technicians.<br /><br />One thing that is constant is to let you know your problem isn't normal, common or acceptable. You also had a previous post explaining you had problems simular to this on a previous Honda you owned. This might be a clue it has something to do with owner operator error.<br /><br />Since your motor is still well with in the warranty period. Why are you still fighting this problem? If by chance your local dealer isn't addressing this correctly, you should contact customer support at Honda. <br /><br />Somewhere through all this, it would be nice to get a logical explaination as to what the actual problem with your Honda is. Seriously, I'm very curious.<br /><br />Remember, your motor is still under a full factory warranty. Please help us understand.
 
K

kellaig

Seaman
Joined
Jan 15, 2002
Messages
63
Re: honda heat soak

Hi skinnywater,<br /><br />You are right with the previous posts but not one of them solved this problem. I thought it had gone away during the winter. I spoke to the Honda mechanic adgain today and he seems to think that a float level may be too high. (even though this has been checked at least three times???). When the motor is left sitting for a while in the heat, the fuel expands and overflows into the cylinder. When I start the motor it may then be a little rich in fuel causing it to cough/ splutter. Once it clears it runs fine.<br /><br />This may explain why it does it sometimes and not others. They want me to test it with the cowling off first to see if there is any improvement. It wouldn't get as hot withe the cowling off so the fuel may not expand.<br /><br />Does this seem reasonable.???<br /><br />Regards
 
S

Salmon Tub

Seaman Apprentice
Joined
Aug 13, 2003
Messages
36
Re: honda heat soak

I don't have a Honda, but I know that Nissan calls for letting the engine run about a minute or two at idle after a long fast run to bring the temp down. Some situations do not allow for this such as sneaking up on fish, but for the most part, you should be able to do this. I have seen this in an old '86 Mitsubishi pick-up I had, but rarely, since most conditions require a bit of time at low RPM while parking. I doesn't seem to me that the Bowl theory is right.
 
S

Skinnywater

Commander
Joined
Mar 7, 2002
Messages
2,065
Re: honda heat soak

Does this seem reasonable.???
Click to expand...
Well the theory is reasonable. Thier request is not reasonable. And the service is not reasonable. <br />Weather the motor does or doesn't do it with the cowl off, there's still a fault, problem, disrepair, snafu, or simply not operating as intended or designed.<br /><br />You paid more then average money for that outboard. It's been an ongoing, unresolved problem. <br />Here are additional facts to consider other then the obvious ones. <br />If your float levels are set to high to cause this running problem, then it's causing the cylinders to wash down. This causes excessive wear on the cylinder walls, rings and pistons. This also cause your oil to become prematurely diluted, causing additional wear. It also causes you to use more fuel and create additional pollutants.<br />These reasons and the fact your getting the run around are completely unreasonable.<br />In my stretch of the river your problem would be considered life threatening.<br />You owe it to yourself to enjoy that motor the way it was designed. <br />Three attempts at a single repair is demonstrated patience on your part. As a service professional myself, believe me, it's time to get the Honda District Service Manager involved.<br />Follow the instructions on page 102 of your owners manuel, Warranty Service Information, or (770)497-6400<br /><br />As I've explained before, Salmon season here starts mid summer. The ambient temperatures on the Sacramento River are 100-115f. While I usually idle down after a long high speed run only to eliminate hot spots in the combustion chamber, sometimes I don't. My 2002 BF50 has never exibited you complaints or symptoms....never in the 190 hours I've had it.<br />If it started doing what yours does tomorrow, I'd immediately take steps to fully correct it.<br /><br />Good luck, and please keep us informed.
 
H

hondon

Lieutenant Commander
Joined
Jun 11, 2001
Messages
1,922
Re: honda heat soak

These carbs were hard to clean completely even before EPA and CARB got involved.There are places you need to go that some techs do not know how to get to.Find out if these techs know how to remove that limiter cap without breaking the idle mixture screw and that will tell you if they are worth a crap.
 
S

Skinnywater

Commander
Joined
Mar 7, 2002
Messages
2,065
Re: honda heat soak

hondon, I'd sure like to know how to remove the limiter cap. <br />I've not tried or felt the need yet. But I'd like to know anyhow.
 
H

hondon

Lieutenant Commander
Joined
Jun 11, 2001
Messages
1,922
Re: honda heat soak

That'll cost you 10 grand.Can you believe that?
 
S

Skinnywater

Commander
Joined
Mar 7, 2002
Messages
2,065
Re: honda heat soak

:D <br />Mighty big bucks for a vice grip and a quick outward yank....... :confused: <br /><br />Umhmmm.....I understand, I'll cross that bridge when I get to it. :)
 
H

hondon

Lieutenant Commander
Joined
Jun 11, 2001
Messages
1,922
Re: honda heat soak

That outward yank will kill you and leave you swearing.You are doing everything right .Useing your machine , careing for it to a fault,useing your own expierience and good sense to monitor it"s performance.That is all a credit to you .With that in mind ,you will likely never need to remove that limiter cap. If you ever feel you do I'll certainly help you but not here.
 
C

Cricket Too

Lieutenant Commander
Joined
May 14, 2003
Messages
1,732
Re: honda heat soak

I agree with Skinnywater, you need to become your dealers worst mightmare and if that doesn't work get Honda on the phone and get them after that particular dealer and get that motor fixed. It is the whole point of the big price tag when you buy new to have that piece of mind of the warranty behind it. Good Luck.
 
B

backdraft

Petty Officer 1st Class
Joined
Dec 29, 2002
Messages
266
Re: honda heat soak

You will void your warranty if you remove the limiter caps and the dealer will refuse to work on it. Wait till after the warranty is up and then you can actually improve the way it runs. Let the dealer rectify the problem now. He might be able too. nevjb
 
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