Go Back   RIBnet Forums > RIB talk > Engines & props

Reply
 
Thread Tools Search this Thread
 
Old 12 December 2008, 15:15   #1
Member
 
Country: UK - England
Town: Manchester - Abersoc
Boat name: MeMe
Make: ZodiaMedII & Yam380
Length: 6m +
Engine: Suzi140/4 - Yam15/4
Join Date: Jul 2003
Posts: 1,675
How best 2 restrict WOT for my 12 yr old....

........on my Yam 380s with a Yam 15hp 4-Stroke on the tail.

My daughter is most sensible and as such often takes control of my 6m with a 140 on the stern (with me aboard) and has in her time enjoyed as equal numbers of hours on the water with me in varying conditions.

I have just bought a 380 Yam and would like to let her loose so to speak, alone however, as added security I'd like to start by restricting WOT - not that she would go to WOT if told not too - but you never know what might occur - I am sure at some point even those of us with many hours under our belts have twisted the throttle or pushed forward / backward too much just at the wrong time - therefore I'm sure you get my point.

So - what is the best method to restrict WOT whilst allowing some freedom on the plane............
__________________
Buy it & Use it, then sell it and buy something bigger
MeMe is offline   Reply With Quote
Old 12 December 2008, 16:03   #2
Member
 
Country: UK - England
Town: cookoo land
Boat name: tba
Make: ribcraft 595
Length: under 3m
Engine: Suzi 140
Join Date: Sep 2007
Posts: 316
A quick (clumsy) but effective way I have found, is to build up the 'thickness' of the throttle lever at the right point with cable tie/self amalgamating, so that the lever 'jams' against the throttle box before WOT. (a bit difficult to describe but I hope you get the gist)

Very crude, but easy to install and remove.

I'm sure there will be some much more high tech suggestions soon.
BB

Just thought........this obviously wouldn't work for tiller/twist throttle, but not sure what you have on 380!
BassBoy is offline   Reply With Quote
Old 12 December 2008, 16:09   #3
Member
 
chewy's Avatar
 
Country: UK - England
Town: Up Norf
Make: Avon SR4,Tremlett 23
Length: 4m +
Engine: Yam 55, Volvo 200
Join Date: Apr 2007
Posts: 4,997
Restricting thr air intake or exhaust will reduce the power.

The tape sounds like a good idea though.
chewy is offline   Reply With Quote
Old 12 December 2008, 16:37   #4
RIBnet admin team
 
Nos4r2's Avatar
 
Country: UK - England
Town: Swindon
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 239050687/235055163
Join Date: Jul 2005
Posts: 8,881
Quote:
Originally Posted by chewy View Post
Restricting thr air intake or exhaust will reduce the power.
It'll also make the engine run like a bag of poo unless you spend considerable time rejetting it.

If you're lucky the throttle mechanism on the carb will have a screw stop to set the WOT position.
__________________
Need spares,consoles,consumables,hire,training or even a new boat?
Please click HERE and HERE and support our Trade Members.
Nos4r2 is offline   Reply With Quote
Old 12 December 2008, 16:42   #5
Member
 
ashbypower's Avatar
 
Country: UK - England
Town: Christchurch/Salisbu
Boat name: Blue C + Dingbat
Make: XS 600 fitting out
Length: 6m +
Engine: 125hp Opti
MMSI: 235082826
Join Date: Jan 2004
Posts: 1,118
Quote:
Originally Posted by Nos4r2 View Post
It'll also make the engine run like a bag of poo unless you spend considerable time rejetting it.

If you're lucky the throttle mechanism on the carb will have a screw stop to set the WOT position.
Wot he said
__________________
Brian C
Ashby Powerboat School
APS Marine Centre
ashbypower is offline   Reply With Quote
Old 12 December 2008, 17:03   #6
Member
 
Country: UK - England
Town: yorkshire
Boat name: little vicky
Make: avon ex RNLI
Length: 3m +
Engine: tohatsu
Join Date: Mar 2008
Posts: 1,632
think i would just build up the throttle lever on the carb with tape or sleeve it with a bit of plastic tubing until you get the right revs ,
m chappelow is offline   Reply With Quote
Old 12 December 2008, 18:32   #7
mdt
Member
 
Country: UK - Scotland
Town: fife
Make: Humber / searider
Length: 5m +
MMSI: ... - - - ...
Join Date: Sep 2005
Posts: 720
easy. just slacken the cable a bit and guess what... lots of nothing when you first start twisting the grip.


easy to set the max and easy to reverse when you are going out for a play.
__________________
“The only difference between men and boys, is the price and size of their toys”
mdt is offline   Reply With Quote
Old 12 December 2008, 20:23   #8
RAD
Member
 
Country: UK - England
Town: Essex
Boat name: Club Boat
Length: no boat
Engine: Yam 40hp
Join Date: Dec 2006
Posts: 287
Sorry thick hat on, what is WOT?

RAD is offline   Reply With Quote
Old 12 December 2008, 21:03   #9
RIBnet admin team
 
Nos4r2's Avatar
 
Country: UK - England
Town: Swindon
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 239050687/235055163
Join Date: Jul 2005
Posts: 8,881
Wide Open Throttle
__________________
Need spares,consoles,consumables,hire,training or even a new boat?
Please click HERE and HERE and support our Trade Members.
Nos4r2 is offline   Reply With Quote
Old 13 December 2008, 19:06   #10
Member
 
Country: UK - England
Town: Wilmslow
Boat name: Serotonin
Make: Quicksilver
Length: 3m +
Engine: Mariner 15
Join Date: Feb 2003
Posts: 712
Quote:
Originally Posted by MeMe View Post
........on my Yam 380s with a Yam 15hp 4-Stroke on the tail.



I have just bought a 380 Yam and would like to let her loose so to speak, alone however, as added security I'd like to start by restricting WOT - not that she would go to WOT if told not too - but you never know what might occur - I am sure at some point even those of us with many hours under our belts have twisted the throttle or pushed forward / backward too much just at the wrong time - therefore I'm sure you get my point.

............
If your in the boat as ballast then no problem if you have got plenty of weight in the bow she should be ok big anchor and chain or bag of sand
fred bolton is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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




Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

RV & Travel Trailer Communities

Our RV & Travel Trailer sites encompasses virtually all types of Recreational Vehicles, from brand-specific to general RV communities.

» More about our RV Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002-2012 Social Knowledge, LLC All Rights Reserved.

All times are GMT. The time now is 23:09.


RIB News Delivered to your Email!

Stay up-to-date with RIB news in your inbox!

unsusbcribe at anytime with one click

Close [X]