use reed stoppers or not?

[mopar1rules]

ok, my shee had some boyessen dual stage petals on w/o reed stoppers and just a little flat plate of metal, that was bolted to the reed petals and cages (i think it would be a reed petal stiffener...not sure). the petals were pretty much junk, so i installed some new carbon techs. i also installed some reed stoppers on my stock shee cages, w/some fresh carbon tech petals and when i installed the cage assembly into the cylinder, i noticed that the top reed stopper blocks off almost half the flow to the little port on top of the 2 large intake ports. i know on the sx700 yamaha snowmobiles, they have this same issue, and guys will either use reed spacers or notch the top reed stopper, so it doesn't block off the flow like this. so here's what i'm wondering....what will be my best thing to do? should i just remove the reed stoppers period, should i just notch the top reed stopper, or should i get some reed spacers?

[Snopczynski]

you must run the reed stops with the carbon techs. Port work is where you fix intake flaws from reedcages.

[NYUK]

i have ported reed cages on my bike stock petals and the stops trimmed back a little. lets them open a little wider, without flutter.

[RNBRAD]

First thing I did was remove the stops and change the pedals.

[mopar1rules]

RNBRAD-what petals did you change to?

 

NYUK-what exactly did you trim back?

 

Snopczynski-i cleaned up the intake ports a little. i put the "knife" edge to the center divider. could i still notch out a little chunk of the stopper, to keep it nice and open to the little port on top of the intakes?

 

i'm trying to get the pics to post, but they won't.

 

1) go to www.totallyamaha.com

 

2) click on "technical pages" on left side of page

 

3) click on "snowmobile tech"

 

4) click on "engine"

 

5) click on "reed stopper notch"

[mopar1rules]

i tried to post pics again, but keeps saying its larger than available space. its only 55kb big....wtf?

[njbanshee]

I didn't run the stops when i had boyson reeds in my bike.

[Snopczynski]

You have to run the reed stops with carbon techs. You can bend the stops a little, but I would leave them alone as long as you put the ones on you wanted to run. low-mid-high. The port work you have to do is taking the step in the top of the intake and turning into a ramp. Leave them alone, they will make more power than anything else unless your building a drag bike.

[mopar1rules]

Leave them alone, they will make more power than anything else unless your building a drag bike.

 

 

leave what alone.....the intake ports, the reeds, the reed stoppers?

[mopar1rules]

The port work you have to do is taking the step in the top of the intake and turning into a ramp.

 

 

snoop, can you send me a pic of what you are talking about? also, i got the low-mid tension carbon tech reeds.

[Snopczynski]

snoop, can you send me a pic of what you are talking about? also, i got the low-mid tension carbon tech reeds.

 

 

its just a low tension reed. they dont make low-mids. its either low, mid, or high.

Don't worry about the intake right now, you'll be fine.

 

As for leaving them alone, put the reed on with the stops and dont worry about anything else.

[mopar1rules]

ok. hey did you get those 28mm flatslide tm carbs yet off of ebay?

[Snopczynski]

no, the clown hasn't even shipped them yet.

[mopar1rules]

what a joke?

 

hey, one quick question, which carb would the float bowl marked "1-1" go to....the left (mag side)? if so, then the bowl marked "1-2" would go to the left side (clutch side)? i'm just double checking my carburetion here today.

[Snopczynski]

I dont know.