250-500cc Rubber intake & Reed cage don't match.

[yakka]

When making new gaskets for intake boot on the 300 (2009),noticed the opening doesn't line up with the reed cage (original) opening. 3 sides are OK, but one is about 4mm off. Cage hole is offset to one side while boot is not. Same with the old original boot too. Tried rotating 180, same thing again.
Anyone else ever noticed this?
This would create a lot of turbulent flow. Think I might attack it with the file.

 

[juicypips]

Yup it's a common mod to increase air flow the 360's were very narrow on the boot so had to match to each other.

 

[shawbagga]

I got spare gaskets for reed block if u nd 1 mate

 

[yakka]

Cheers shawbagga, been cutting my own gaskets-going thru some chasing what I thought was a air-leak.

 

[Hurky]

Interesting, I never checked if that is also the case on my 2010 WR300, next time I will check and use the file if needed . I suppose that there should be some noticeable gains from it...

 

[shawbagga]

She bn runnin lean or hangin throttle?

 

[yakka]

Hanging throttle,pinging like mad. been thru everything ,can't work it out.

 

[shawbagga]

Post up wat uve dun maybe sum outside eyes/ears could help?

 

[Miezie666]

I never had any good experience with any v force in my bikes... my yz125 did not perform better, my wr250 was harder to start and didnt idle as good as it did with the stock intake and my wr125- i m not sure if this thing does help at all.
The standard reed cage is not such a bad design.
I had the best experience with the boyese rad valve- but i m not sure if its available for the 125cc engines.

 

[yakka]

With my bike the VForce are the stock reed cage.

 

[Miezie666]

So on my WR125... but i did have an older reed cage for my 125 and 250.

 

[oneal]

it will be interesting to find out whats going on with the hangin idle

 

[yakka]

it will be interesting to find out whats going on with the hangin idle

Wasn't air leak,like I thought. But the throttle slide being set too high (idle-screw). A Lectron quirk.Resulted in running lean with closed throttle.
Had to lean out rod until it stopped hanging.

 

[shawbagga]

Where'd measurement ya end up at with rod n idle screw yakka?

Hope ya didn't spend too much on it buyin parts to fix the prob

 

[robertaccio]

dremel time****************************************

 

[yakka]

Where'd measurement ya end up at with rod n idle screw yakka?

Hope ya didn't spend too much on it buyin parts to fix the prob

No, most of it about due to be replaced anyway. Wasted a lot of hours going in circles though.
50.5mm seemed to cure it,but bottom-end feels a bit lean. I'll take it out this arvo & see how it goes.

 

[yakka]

dremel time

On the slide you mean?

 

[Huskynoobee]

On the reed cage. Now I'm curious too.

 

[shawbagga]

No, most of it about due to be replaced anyway. Wasted a lot of hours going in circles though.
50.5mm seemed to cure it,but bottom-end feels a bit lean. I'll take it out this arvo & see how it goes.

Try it 1/4 richer if no good. Think 1/4 turn is equivalent of 0.25mm from memory. Let us know how she goes

 

[Thack]

I have a feeling V-Force used an existing casting from say a Honda and sold it to Husqvarna.