scdlguy
Newbie
- Joined
- Jun 23, 2008
- Messages
- 10
I have installed a stock RX-1 engine/cvt into a dune buggy and am looking at a way to lower the engagement to about 2k to 2.5k. I know it is done by changing the spring or adding weight to the shoulder of the arms(please correct me if I'm wrong). Question is what spring or how much weight should I add? Thanks in advance for your help.
rxrider
Jan-Ove Pedersen
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- Apr 25, 2003
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- Lakselv - 70N & 25E
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- Norway
- Snowmobile
- 2014 Phazer XTX, 2013 Phazer RTX, 2008 Apex RTX, 2007 Warrior, 2006 Attak
You can go with a YXR short spring to lower engagement more that the original YXR long spring will allow for.
I don't know what spring you have in there now, but a PINK-YELLOW-PINK with preload/total force of 25/122 would get your engagement close compared the a stock long spring YELLOW-SILVER-YELLOW 35/118.
I don't know what spring you have in there now, but a PINK-YELLOW-PINK with preload/total force of 25/122 would get your engagement close compared the a stock long spring YELLOW-SILVER-YELLOW 35/118.
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scdlguy
Newbie
- Joined
- Jun 23, 2008
- Messages
- 10
Thanks. When I called Dalton they told me not mess with it, and that if I lowered the engagement I would lose a lot on the top end. If I use the short spring you recommend is this still the case?
rxrider
Jan-Ove Pedersen
- Joined
- Apr 25, 2003
- Messages
- 7,355
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- 60
- Location
- Lakselv - 70N & 25E
- Country
- Norway
- Snowmobile
- 2014 Phazer XTX, 2013 Phazer RTX, 2008 Apex RTX, 2007 Warrior, 2006 Attak
You could try a PINK-PINK-PINK short spring 30/128, engagement would be around 2800 rpms with stock weights and top end rpms should be pretty close to stock spring. Springs are inexpensive, buy a few and test them in your application. I did run this spring in my RX-1 to run lower rpms for engagement and lower rpms cruising, wot rpms were above 10000 rpms. BTW with the stock spring rpms never went past 10000 rpms. Have a good time riding the buggy 
black john
TY 4 Stroke Guru
engagement
the engagement rpm is all ready lower than you think as gear drive on the end of the moter makes the clutch rpm lower than the moter rpm.
the engagement rpm is all ready lower than you think as gear drive on the end of the moter makes the clutch rpm lower than the moter rpm.
scdlguy
Newbie
- Joined
- Jun 23, 2008
- Messages
- 10
Thanks all.
What is a good web site to purchase springs from?
What is a good web site to purchase springs from?
L
lightningpro-fred
CONTACT HITECH PERFORMANCE AND ASK FOR THEIR "WHIMPY" SPRING. IT WILL GIVE YOU WHAT YOU WANT.
rxrider
Jan-Ove Pedersen
- Joined
- Apr 25, 2003
- Messages
- 7,355
- Age
- 60
- Location
- Lakselv - 70N & 25E
- Country
- Norway
- Snowmobile
- 2014 Phazer XTX, 2013 Phazer RTX, 2008 Apex RTX, 2007 Warrior, 2006 Attak
http://www.portyamaha.com
look in the yamaha fiche section
http://www.portyamaha.com/fiche_select.asp
look in the yamaha fiche section
http://www.portyamaha.com/fiche_select.asp
scarp9
Newbie
Hate to hijack the thread but do you like these guys im thinking about getting a used rx 1 from them, good customer service, are the helpful? thanks any info would be greatly appriecatied
