Reed Notch

[MrSled]

Found block ports on the 500 and 600's too
Reed Stopper Notch Modifications can be done on the 97 & Up SX700 Triple Style Motors and the 97 & Up 500 & 600 Twin Style Motors non Power Valved.

 

[vmaxjohn]

Groovy Sled. What are th specs you recommend for the twins, same as the triples?

 

[MrSled]

the notch could be smaller but to keep it simple, just going to keep it the same

 

[TJ500]

what do these notches achieve and how difficult is it to complete?.... Will it in any way affect the feul consumption in a positive respect?...


Thanks...

 

[MrSled]

you will gain throttle response....and about 3 to 4hp from what I remember http://www.totallyamaha.com/snowmobiles/aaTECH/ReedNotch/Reed_Notch.htm

 

[sledrider_ny]

Off the carbs come again!

 

[sledrider_ny]

I just finished notching the reed stops on my 500. What got me is you can actually see where the fuel has been blasting the reed stops. Hopefully I can figure out how to post a pic and you can see what it mean. This made a very noticable difference in throttle response. I've been testing in my field that is 600' long and about 3 inches of snow. On a rolling start around 25-30mph after it has shifted, when I pin the throttle it will backshift and carry the ski's until I have to let off. I would say it has cut the throttle response lag in half compared to where it was before this mod. Tomorrow we are going to go play in a bigger field with about 10" of snow. Should get a better idea then.[/img]

 

[sledrider_ny]

Here they are all cut and waiting installation.

 

[MrSled]

I wouldnt stear you wrong

 

[SrXxTrEeM]

YES you would

 

[MrSled]

maybe you Marc...LOL

 

[vmaxjohn]

can't wait to do mine! Oh wait, I don't think I will now, forget anyone read this post

 

[Adde]

Small question.. I have seen something on a page that this mod was mostly for Sxr and not Srx. Any truth in that or does it also help on Srx engines?

 

[MrSled]

it does nothing for the SRX motors...the intake port is not covered on that motor..

 

[Adde]

Damn, should have been a few easy hp:s.. So there are no "small" mods to do on Srx sleds then?

 

[MrSled]

other then clutching nothing that can be done...unless you can machine the heads , cut and weld the head pipes or port.

 

[Maim]

reed notch

i have 2001 sxr500. whitch is better, the notch or reed spacers?
(need help keeping up to my brothers viper. keeping up not passing)

 

[MrSled]

Notch is better....

 

[Maim]

reed notch

thanks for advice.
ill do it when it comes back from camp.(cousin borrowed so he could leave artic scrap at home. )

 

[powderhound]

Would there be any advantage having both reed spacers and notching ?