XR.choke butterflies with DR Nick

[GregMember]

http://www.youtube.com/watch?v=LxyT6L4iywM&feature=youtube_gdata_player

TB

[DeanMember]

Nice VID TB and Dr Nick

Just a couple of quick questions. For me My XR650R is mainly used for commuting from Hornsby to The city about 60 KM a day. I have an alloy plate installed instead of Original Plate/s.
1.would this mod be beneficial for my purpose or would I be better off leaving it in> Im happy with the power it makes,but dont want bits sucked into the engine Either.
2. How much of a power gain is created by removing the restrictions ?
3. Do you lean it to the right like Nick said or to the left pivoting on the stand like TB said?

cheers Ollie

[GregMember]

Ollie wrote:

Nice VID TB and Dr Nick

Just a couple of quick questions. For me My XR650R is mainly used for commuting from Hornsby to The city about 60 KM a day. I have an alloy plate installed instead of Original Plate/s.
1.would this mod be beneficial for my purpose or would I be better off leaving it in> Im happy with the power it makes,but dont want bits sucked into the engine Either. Answered it yourself the bits in the engine ids the drama, Nick need say about the one piece ones during the video, PS alloy would worry me more because vibrations and alloy don’t mix
2. How much of a power gain is created by removing the restrictions ? Haven’t measured it cant hurt :laugh:
3. Do you lean it to the right like Nick said or to the left pivoting on the stand like TB said? Tested both ways, stand to the left works as well and is easier

cheers Ollie

Do it mate easy and worth the peace of mind IMO

TB

[DeanMember]

Trailboss wrote:

Ollie wrote:

Nice VID TB and Dr Nick

Just a couple of quick questions. For me My XR650R is mainly used for commuting from Hornsby to The city about 60 KM a day. I have an alloy plate installed instead of Original Plate/s.
1.would this mod be beneficial for my purpose or would I be better off leaving it in> Im happy with the power it makes,but dont want bits sucked into the engine Either. Answered it yourself the bits in the engine ids the drama, Nick need say about the one piece ones during the video, PS alloy would worry me more because vibrations and alloy don’t mix
2. How much of a power gain is created by removing the restrictions ? Haven’t measured it cant hurt :laugh:
3. Do you lean it to the right like Nick said or to the left pivoting on the stand like TB said? Tested both ways, stand to the left works as well and is easier

cheers Ollie

Do it mate easy and worth the peace of mind IMO

TB

cool when I go back up to Kempsey to pick my bike up I will do the Mods then

Thanks TB

PS when are you doing a Rebuild Vid on the XR :whistle:

Ollie

[Nick DoleMember]

I think the choke butterfly and spindle restricts the engines breathing. We always removed it as a performance mod over durability. The XR650 ran well on the ride, bit of a lean hesitation in the middle with a 162 main but not too bad.
If the choke had a fast idle I’d be more inclined to leave it in. You have to do the fast idle by hand anyway so the butterfly is not worth having.

[Author]

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