 |
|
|
|
|
|
|
|
|
|
gammie89
4fiddy Racer
Joined: 15 Jun 2007
Posts: 265
Location: cairns QLD
|
 Posted: Mon Jul 23, 2007 5:40 pm Post subject: stiff yfz450 thumb throttle |
  |
|
| after riding my yfz450 for a few years now the throttle still seems to make my thumb go all stiff and sore after big days at the track or long trail rides, are there anyways in which i can "soften" the tension up on the throttle? i heard you can put different thumb throttles on and gives different leverages but which ones work best, also rat motorsports has a new spring for the carby- does anyone know if that works or not? |
|
| |
|
|
|
|
|
|
|
|
Sponsor
|
|
|
|
|
|
|
|
|
froggy
Roostin Away
Joined: 17 May 2006
Posts: 664
Location: Adelaide
|
| Posted: Mon Jul 23, 2007 6:23 pm Post subject: |
|
|
| honda ones are generally pretty easy |
|
| |
|
|
|
|
|
|
|
|
gammie89
4fiddy Racer
Joined: 15 Jun 2007
Posts: 265
Location: cairns QLD
|
| Posted: Mon Jul 23, 2007 6:28 pm Post subject: |
|
|
| yeah, i have read about it but never seen anyone do that, do you think the new spring will help aswell or will it make no difference |
|
| |
|
|
|
|
|
|
|
|
froggy
Roostin Away
Joined: 17 May 2006
Posts: 664
Location: Adelaide
|
| Posted: Mon Jul 23, 2007 7:33 pm Post subject: |
|
|
| unfortunately im out of my league now should help but not positive. All i know is some people have changed to a honda thumb throttle |
|
| |
|
|
|
|
|
|
|
|
gammie89
4fiddy Racer
Joined: 15 Jun 2007
Posts: 265
Location: cairns QLD
|
| Posted: Mon Jul 23, 2007 7:35 pm Post subject: |
|
|
| i might try and track a 450r throttle down and look into gettin a spring then |
|
| |
|
|
|
|
|
|
|
|
froggy
Roostin Away
Joined: 17 May 2006
Posts: 664
Location: Adelaide
|
| Posted: Mon Jul 23, 2007 7:36 pm Post subject: |
|
|
i think one of a 400ex or 200ex will fit
ive got one on my typhoon and its pretty smooth |
|
| |
|
|
|
|
|
|
|
|
gammie89
4fiddy Racer
Joined: 15 Jun 2007
Posts: 265
Location: cairns QLD
|
| Posted: Sun Aug 05, 2007 12:57 pm Post subject: |
|
|
| what sort of a price would i be expecting to pay for a 400ex or 450r thumb throttle, where would be the best place to get one |
|
| |
|
|
|
|
|
|
|
|
OZ_450
The Day Starts With OZATV !
Joined: 12 Feb 2006
Posts: 1631
Location: those who need to know knows :)
|
| Posted: Sun Aug 05, 2007 4:42 pm Post subject: |
|
|
i heard any honda one will fit including farm ones and alot use the trx 90 lever on the honda body to do it even better
do a search on forum there is another post about it |
|
| |
|
|
|
|
|
|
|
|
gammie89
4fiddy Racer
Joined: 15 Jun 2007
Posts: 265
Location: cairns QLD
|
| Posted: Sun Aug 05, 2007 8:54 pm Post subject: |
|
|
| i have ordered a honda (450r i think) throttle from jmc, should be here mid-week. yeah i'll do a search for the other post about it |
|
| |
|
|
|
|
|
|
|
|
gammie89
4fiddy Racer
Joined: 15 Jun 2007
Posts: 265
Location: cairns QLD
|
| Posted: Fri Aug 10, 2007 5:16 pm Post subject: |
|
|
| i just put the honda thumb throttle on and i dont think it was such a good idea, the action is a lot more stiffer but the throttle is heaps more snappier due to the honda pulling the cable further with less lever movement, i will probably go for a ride tomorow and see if it is any better and bring the yamaha throttle with me incase the honda is too much for my thumb |
|
| |
|
|
|
|
|
|
|
|
Ozzy84
Moderator
Joined: 10 Apr 2006
Posts: 894
Location: Gold Coast QLD
|
| Posted: Fri Aug 10, 2007 6:57 pm Post subject: |
|
|
| yeah was going to suggest a longer lever. |
|
| |
|
|
|
|
|
|
|
|
gammie89
4fiddy Racer
Joined: 15 Jun 2007
Posts: 265
Location: cairns QLD
|
| Posted: Sat Aug 11, 2007 10:44 am Post subject: |
|
|
| yeah i have already added a extension onto the lever, a piece of drinking water hose, it made it much better, i spose i will just put up with it for now untill my thumb gets stronger |
|
| |
|
|
|
|
|
|
|
|
fourtrax
Big Bore, Stroked & Bling +
Joined: 05 Jun 2006
Posts: 499
Location: moree
|
| Posted: Sun Aug 12, 2007 9:28 am Post subject: |
|
|
hey peter,
jack from rat motorsports sells a new spring that softens the throttle on the yfz or any fcr carb. its about 30-40$ and you have to pull your carb apart but your esentially changing the spring to a softer one on the carb slide. if you take the throttle cable section cover off your carb, (right hand side) behind the round bit that rotates is the spring. best money you will ever spend.
fourtrax |
|
| |
|
|
|
|
|
|
|
|
gammie89
4fiddy Racer
Joined: 15 Jun 2007
Posts: 265
Location: cairns QLD
|
| Posted: Sun Aug 12, 2007 10:20 am Post subject: |
|
|
i read (on this forum somewhere i think) that when comin up short on big doubles and similar jumps that when you lamp real hard and harsh the new spring cant hold the slide open and you get a kinda bobble in your engine but only real briefly
(P.S. this is peters son, james)
_________________
04 yfz450 |
|
| |
|
|
|
|
|
|
|
|
ATV PRO
Roostin Away
Joined: 13 Feb 2006
Posts: 888
Location: Central Coast, NSW
|
| Posted: Tue Aug 14, 2007 9:47 pm Post subject: |
|
|
| gammie89 wrote: | i read (on this forum somewhere i think) that when comin up short on big doubles and similar jumps that when you lamp real hard and harsh the new spring cant hold the slide open and you get a kinda bobble in your engine but only real briefly
(P.S. this is peters son, james) |
Hey Gammie ,
A Genuine thumb throttle assembly from a ATC 90 is the only safe way to go,weaker springs can lead to sticky throttles .The parts come separate and will cost about $300,we have fitted several with great success 
_________________
Cheers
Len
ATV PRO Pty Ltd |
|
| |
|
|
|
|
|
|
|
|
gammie89
4fiddy Racer
Joined: 15 Jun 2007
Posts: 265
Location: cairns QLD
|
| Posted: Fri Aug 17, 2007 4:54 pm Post subject: |
|
|
thanks for the advice but for now i will just put up with it
_________________
04 yfz450 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
