What have you done for your bike today????

[Calpantera]

The only thing you NEED is the bolt from the lower clevis mount on the R6 shock, and the metal sleeve that bolt goes into.  The R6 lower bolt is a little different inside diameter but both the stock and the R6 sleeve has same outside diameter so it fits perfectly.  If it doesn't make sense after reading 2-3 times, just know it will when you go to do it. The R6 lower bolt and sleeve will fit perfectly with the rest of the stock setup (knuckle and dog bones).

- Bboy

I just took another look and it appears that I have the bolt but not the sleeve. If the stock sleeve has a smaller inside diameter I can just bore it out to fit the R6 bolt ya?

[mustangGT90210]

Adjusted 3/4 valves today. Left exhaust is still too tight :/ Ordered the shim, hopefully it's here by thursday. Going on 1.5 weeks I haven't ridden this bike

[weedahoe]

Bought me a Shoei X-11 today and will be here Weds! Cant wait

[slipperymongoose]

The only thing you NEED is the bolt from the lower clevis mount on the R6 shock, and the metal sleeve that bolt goes into.  The R6 lower bolt is a little different inside diameter but both the stock and the R6 sleeve has same outside diameter so it fits perfectly.  If it doesn't make sense after reading 2-3 times, just know it will when you go to do it. The R6 lower bolt and sleeve will fit perfectly with the rest of the stock setup (knuckle and dog bones).

- Bboy

I just took another look and it appears that I have the bolt but not the sleeve. If the stock sleeve has a smaller inside diameter I can just bore it out to fit the R6 bolt ya?

Why bother when you can pop down to the Yamaha dealership or bike wreckers and pick one up for a few bucks.

[peteGS]

Final carb adjustment for the moment... could be good or bad although it's highly recommended for throttle response...







Just under 20mm's off the slide springs.

Tomorrow's commute will be either really crap or really good...

[Calpantera]

Final carb adjustment for the moment... could be good or bad although it's highly recommended for throttle response...

Just under 20mm's off the slide springs.
Tomorrow's commute will be either really crap or really good...

Eitherway I guess you will know tomorrow..
Let us know how it goes!

[peteGS]

Yes indeed! Will give an update tonight...

[Badot]

I've been told that shortening/changing the slide springs is the 'proper' way to rejet your needle circuit rather than using washers after putting in high flow stuff. Supposedly maintains fuel economy much better. Please let us know how it turns out, I'm very interested in this.

When I go from two to one washer under my needle I go from ~53 to ~61 mpg. Bike is just a lot more stuttery when cold but runs fine warm. Would be great to keep that 60+ mpg year round.

[Calpantera]

Watch the video

I watched it again today, great vid, thank you so much! Needed a translator though, BTW watch your vid and turn the Closed Caption translator to English, it is HILARIOUS! The only problem that I see is that I don't have any spanners, only wrenches, hope they work 

Oh BTW great camera work Coda!

[slipperymongoose]

Ill try that now 

[bombsquad83]

I've been told that shortening/changing the slide springs is the 'proper' way to rejet your needle circuit rather than using washers after putting in high flow stuff. Supposedly maintains fuel economy much better. Please let us know how it turns out, I'm very interested in this.

When I go from two to one washer under my needle I go from ~53 to ~61 mpg. Bike is just a lot more stuttery when cold but runs fine warm. Would be great to keep that 60+ mpg year round.

Does this would basically cause the needle to rise with less vacuum (or RPMs).  Effectively it would do something similar to shimming the needle at mid-rpms, but at low rpms when the needle doesn't get pulled up at all, you would have zero effect.  So it should run a little leaner down low.  This is an interesting idea, but how do you know how much of the spring to cut off?

[Badot]

Does this would basically cause the needle to rise with less vacuum (or RPMs).  Effectively it would do something similar to shimming the needle at mid-rpms, but at low rpms when the needle doesn't get pulled up at all, you would have zero effect.  So it should run a little leaner down low.  This is an interesting idea, but how do you know how much of the spring to cut off?

Exactly. Washers introduce a 'leak' in the needle circuit that occurs when there is some vacuum in the carb barrel, but not enough to lift the slide.

How much spring to cut off? That's why we just use washers instead 
Unless someone has a very good 3d model and very good flow simulation software it's down to estimates and experimentation. It's easier to play with washers than springs.

[codajastal]

Replaced the chain on one of the CT110's as it had a tight spot and felt like I was riding a fukking horse. All good now

[Calpantera]

Replaced the chain on one of the CT110's as it had a tight spot and felt like I was riding a fukking horse. All good now

The missus and I have one of those things suspended from the ceiling in the "play" room. Not sure how it would be like riding a trail bike though 

[codajastal]

Replaced the chain on one of the CT110's as it had a tight spot and felt like I was riding a fukking horse. All good now

The missus and I have one of those things suspended from the ceiling in the "play" room. Not sure how it would be like riding a trail bike though 

Nothing like a trail bike. More of a cross between a scooter and roadbike. Top speed of 90Kph/50mph or there abouts and easy to throw around.
I actually corner faster and lower than I would ever on my GS

[wayne242]

Found out my turn single flasher is shot, now the fun starts on locating a replacement that don't hurt the wallet to much.

[Twisted]

Found out my turn single flasher is shot, now the fun starts on locating a replacement that don't hurt the wallet to much.

I'm sure adidasguy will have a box of these. PM him.

[adidasguy]

Found out my turn single flasher is shot, now the fun starts on locating a replacement that don't hurt the wallet to much.

I'm sure adidasguy will have a box of these. PM him.

Yes, I do, I humbly have to admit.

[peteGS]

Ok reporting in on the spring cutting

The idea is to improve throttle response, less spring means less resistance to the slides lifting the needles when you open the butterflies.

Anyway, yeah it works!

It's not a ground breaking/earth shattering improvement, but you can definitely feel it and it is absolutely more responsive with the mod. I didn't do the other half of the mod which is increasing the size of the holes on the bottom of the slides, I'm still undecided whether I want to make that much of a permanent change or not. Springs can be replaced, slides aren't so easy/cheap.

For those of you riding with me this Saturday, if you see me giggling like a school girl rolling on and off the throttle, just ignore me 

I did however go too far with the mixture screws so have wound them out (richer) 3/4 of a turn tonight and today I didn't feel like WOT was pulling as strong as the rest of the throttle range, so I went back up to the 6 size larger mains (132.5).

So since richening up the needles all the way last Friday night and now doing the slide spring shortening, it's basically transformed how my little 450 feels completely. I really had no idea how much fun I was doing myself out of by not doing this sooner...

[bombsquad83]

Ok reporting in on the spring cutting

The idea is to improve throttle response, less spring means less resistance to the slides lifting the needles when you open the butterflies.

Anyway, yeah it works!

It's not a ground breaking/earth shattering improvement, but you can definitely feel it and it is absolutely more responsive with the mod. I didn't do the other half of the mod which is increasing the size of the holes on the bottom of the slides, I'm still undecided whether I want to make that much of a permanent change or not. Springs can be replaced, slides aren't so easy/cheap.

For those of you riding with me this Saturday, if you see me giggling like a school girl rolling on and off the throttle, just ignore me 

I did however go too far with the mixture screws so have wound them out (richer) 3/4 of a turn tonight and today I didn't feel like WOT was pulling as strong as the rest of the throttle range, so I went back up to the 6 size larger mains (132.5).

So since richening up the needles all the way last Friday night and now doing the slide spring shortening, it's basically transformed how my little 450 feels completely. I really had no idea how much fun I was doing myself out of by not doing this sooner...

What airbox and exhaust mods do you have on the 450?  What is the stock main on the 450?

Also...on the topic of drilling the slides.  Just to think through what effect that would have, I believe it would reverse some of the effect of the spring cutting.  If the holes are bigger, then it would take more vacuum to compensate for the vacuum loss coming out of the now bigger holes.  Air would also flow back above the diaphragms faster, and you would be lowering the needle more quickly after roll-off.  I say, unless you are having a lot of popping on roll-off, leave the slides stock.