RunRyder RC
WATCH
 1 page 622 views POST REPLY
HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › Tuning Guide for 3 needle carbs?
01-18-2010 03:47 PM  8 years agoPost 1
James3922

rrApprentice

Scotland

My Posts: All  Forum  Topic

Does anyone know of a guide for tuning 3 needle carbs?
I can tune a 50 Hyper no problem but I'm mystified about the new 3 needle carbed engines.

PM  EMAIL  Attn:RR  Quote
01-19-2010 12:02 PM  8 years agoPost 2
jsenicka

rrProfessor

Eagle River, WI

My Posts: All  Forum  Topic

Set the mid range at factory recommended.
Tune it like a 2 needle. You need to get high end dialed in for max sustained power at WOT (assuming engine is broke in). You can then use the mid range needle to richen or slightly lean the mid range in hover and less than max power maneuvers.

Bottom line is the high needle on an OS is master valve for everything, so you need to get that right

Jim Senicka
Team Manager, GrandRC Flight Team

PM  EMAIL  GALLERY  Attn:RR  Quote
01-19-2010 07:56 PM  8 years agoPost 3
Raptor Pilot

rrVeteran

Northern Ireland U.K

My Posts: All  Forum  Topic

I dunno about a tuneing guide but i went on to the OS web site and downloaded the operating instructions for the os 61 sxh-wc as it has a three needle carb. Once i read them and set the needles i havnt touched them since.

If it doesnt move and its meant too... use WD 40. If it moves and its not meant too...use duct tape!

PM  EMAIL  GALLERY  Attn:RR  Quote
01-19-2010 08:51 PM  8 years agoPost 4
James3922

rrApprentice

Scotland

My Posts: All  Forum  Topic

Hi Guys, thanks for the replies, sounds simple enough. Would anyone care to pitch in about YS motors?

PM  EMAIL  Attn:RR  Quote
01-19-2010 10:45 PM  8 years agoPost 5
Raptor Pilot

rrVeteran

Northern Ireland U.K

My Posts: All  Forum  Topic

Sorry James, i have no knowledge of a YS three needle carb, i didnt even know there was one. Surley somebody will offer you a soloution.

If it doesnt move and its meant too... use WD 40. If it moves and its not meant too...use duct tape!

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 622 views POST REPLY
HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › Tuning Guide for 3 needle carbs?
 Print TOPIC  Make Suggestion 

 3  Topic Subscribe

Monday, September 24 - 12:16 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online