[450X-Man]

Pulled the carb off and did the following MOD's.

JD kit 165 main, Blue tip needle with clip in second groove from top. (until weather warms up)
Merge spring
Merge stainless allen head carb screws.
R&D FlexJet fuel screw 1 & 1/8 turns out to start.
I am not going to cut the air box for now. Even have the snorkle still in place. I like what I've read about the filter staying cleaner this way.

I also pulled the baffle to cut off the last 2 disks then re-inserted into the spark arrestor.

Turned on the fuel, pulled out the choke lever, twist throttle twice, hit the magic button, spun over a few times and started right up! Idle was nice and smooth even after warm up and choke pushed back in. Before this bike was a real pain to start cold and cranky until completely warmed up!

Took it for a spin up and down the street today and then tried to adjust the Fuel Screw. I have a hesitation/bog off idle and when adjusting the fuel screw with raised idle speed it won't die with the fuel screw completely closed. Which indicates the pilot jet is to big, from what I've read. The carb still has the stock pilot that I believe is a 45.

[Asmith]

Your pilot is NOT too big. Alot of us run 48's.

The fuel screw at 1 1/8 is in too far. Bring it out to 2 to 2 1/4 turns.

Also, I would ditch that blue needle and swap in the red on the 4th clip down.

[450X-Man]

Your pilot is NOT too big. Alot of us run 48's.

The fuel screw at 1 1/8 is in too far. Bring it out to 2 to 2 1/4 turns.

Also, I would ditch that blue needle and swap in the red on the 4th clip down.

Then how do explain the fact that the bike will not die when I close the fuel screw completely?

I'll try 2 turns out but JD's instructions say 1 & 1/8 thats why it was my starting point.

Ditch the Blue needle, but I was under the impression it was specificly for the cool/colder temps. Dallas temp's have been around 40 lately?

I'll try both of these suggestions.

[Asmith]

The bike can still pull fuel through the starter jet and through the needle jet assy if there is any wear at all.

Make the changes and enjoy.

[450X-Man]

The bike can still pull fuel through the starter jet and through the needle jet assy if there is any wear at all.

Make the changes and enjoy.

Will do tomorrow and then post result.
Thx

[450X-Man]

OK, I put the red needle in with the clip in the 4th position. After warm up I adjusted the fuel screw and it will now just about die when it's fully closed. Ended up at just about 2 out for now. Can't tell much difference between 1.5 out and 2.25 out for now.

Still have a little bog right off idle with fast throttle movement. Do you think I should try a smaller leak jet?

[Asmith]

OK, I put the red needle in with the clip in the 4th position. After warm up I adjusted the fuel screw and it will now just about die when it's fully closed. Ended up at just about 2 out for now. Can't tell much difference between 1.5 out and 2.25 out for now.

Still have a little bog right off idle with fast throttle movement. Do you think I should try a smaller leak jet?

You could try a 50 leak jet or a 48 pilot jet.