|
|
|
|
#1
|
|||
|
|||
Ethanol Symptoms?????
Took the '89 V20 to a lake for a week. 1999 200hp Yamaha Saltwater Series. Gas in tank was from last season. It was treated. Put the boat in gear and it would not go, it would sputter out under load, felt like fuel problem. Put new water seperator and cleaned small filter on motor and she worked like a champ. Then the same symptoms all over again. Change filters, spray out carbs... runs good then farts out shortly after.
Ran the tank dry filled with fresh gas and same symptoms. Put it in gear would hesitate to go had to keep feathering gas and she would finally kick in. Clean carbs, filters. I did this about five times. I am thinking ethanol problem, any suggestions? Lake was awesome by the way... Lake Nubanusit in So. West NH. Pictures to come soon. 
|
|
#2
07-12-2010, 04:00 PM
|
|||
|
|||
|
Are the filters full of gunk when you change them? You could have crap in your gas tank or the ethanol could be eating up your fuel lines. If the filters are clogged remove the fuel sending unit and have a look in the tank and also check the fuel lines. You can also pump some of your gas into a clear container and check for water at the bottom.
|
|
#3
07-12-2010, 08:02 PM
|
||||
|
||||
|
when you say "clean carbs" how are you doing it? Now that you have fresh gas in the tank you really need to remove,disassemble,clean,reassemble and reinstall the carbs. Before you connect the fuel line to the carbs flush out the fuel lines and change all the fuel filters. After that you should be ok.
|
|
#5
07-13-2010, 07:16 PM
|
||||
|
||||
|
A rebuild really isn't that hard. Just like going on a road trip, you need to have a map in order to get to where you want to go. Get a shop manual for your engine. It gives you detailed steps of what to do and how to do it. Not a Sealoc or a Clymer (although they are very good).. a manual from the company that made your engine. You can find them on eBAy for less than $10 as a CD-Rom.. When you get the disk simply print out the section you need so you have it by your side as you do the job. Then follow the steps they tell you in the book.
In the case of a carb rebuild you'll need some basic tools, a compressor or some compressed air in a can (computer dusters work well) a syringe to squirt cleaner into tiny holes and passageways, and a rebuild kit for each carb. You can get the kits from almost any marina that services your engine. There are both OEM and Sierra kits available. Sierra kits are usually cheaper by a few dollars. Both are good. Really, the only thing you need to be concerned about is any plastic parts that are on your carb(s). It used to be the way you cleaned a carb was to throw it in a bucket of cleaner overnight and then blow it out with compressed air... but now with the plastic parts on them you cannot do that because the cleaner will attack the plastic. You need to find a plastic safe cleaner. The best thing to clean the plastic with is 100% denatured alcohol. You can still use carb cleaner on any metal, just be careful around the plastic. That, and a few gaskets and "O" rings and you're good to go. It's easy really. (honest it is) Just take your time and go step by step. Do one carb per night, plus one night to remove the carbs and one night to reinstall and you'll be done in 5 days. The only thing you need to be very careful about is the jets.. use the right size screwdriver so you don't damage them when you remove and install them. 
__________________
1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer 1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer 1996 V21 w/1993 200HP Mercury on a Shoreline Trailer All towed by a 5.7L Hemi Durango. If God didn't have a purpose for us we wouldn't be here, so Live simply, Love generously, Care deeply, Speak kindly. (Leave the rest to God)  Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.
|
 |
|
|
Hybrid Mode
