Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 13-02-2013, 18:30   #1
Registered User

Join Date: Jul 2010
Location: Dunedin, Florida
Boat: Compac 23D
Posts: 29
Yamaha problem, need help

I've recently repowered my 23 sloop with a used 9.9 Yamaha outboard engine. Starts great, revs good in neutral,. But when under a load in gear it doesn't want to rev up. Gas comes out of the carb air intake. .???

BobL
__________________

__________________
BobL is offline   Reply With Quote
Old 13-02-2013, 18:58   #2
Senior Cruiser
 
atoll's Avatar

Cruisers Forum Supporter

Join Date: Mar 2010
Location: gettin naughty on the beach in cornwall
Boat: 63 custom alloy sloop,macwester26,prout snowgoose 37 elite catamaran!
Posts: 9,312
Images: 75
Re: Yamaha problem, need help

sounds like you need to remove the carb and clean the float valve and jet.

prop might be a bit over pitched as well
__________________

__________________
my catamaran building project updates http://www.cruisersforum.com/forums/...36#post2502136
atoll is offline   Reply With Quote
Old 13-02-2013, 19:06   #3
CF Adviser
 
Bash's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: sausalito
Boat: 14 meter sloop
Posts: 7,260
Re: Yamaha problem, need help

Quote:
Originally Posted by atoll View Post

prop might be a bit over pitched as well
Have you got a dink that will handle an engine that size? If so, put the engine on the dink and see if the same thing happens. If yes, you've got a carburetor problem. If no, you've got a prop problem.
__________________
cruising is entirely about showing up--in boat shoes.
Bash is offline   Reply With Quote
Old 13-02-2013, 19:27   #4
TOM
Registered User

Join Date: Mar 2008
Location: On our yacht Byamee
Boat: Footloose 40 steel cutter
Posts: 316
Images: 1
Re: Yamaha problem, need help

Your Check Valve is blocked which is making your float stick which in turn is flooding your carb .Thats why gas is coming out . You need to take off your carbi and clean it . Get yourself a can of carbi spray. Yamahas have a realey good reputation as long as you use em .Leave them un used and they are a pain in the ass .
__________________
TOM is offline   Reply With Quote
Old 14-02-2013, 10:43   #5
Registered User

Join Date: Jul 2010
Location: Dunedin, Florida
Boat: Compac 23D
Posts: 29
Re: Yamaha problem, need help

Thanks for the helpful advice. And for relieving my mind that it's not something major. I'll work on the carb when it stops raining here in sunny Florida and let you know the outcome.

Bob
__________________
BobL is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 02:56.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.