FXR 150 - Carb & idle [Archive]

Str8 Jacket

13th December 2010, 15:03

My FXR now has a standard carb and airbox which is making it beautiful to ride (no pain in hand anymore) and smooth throttle action.

Sure I have lost a bit of top end power but it revs faster, however it stalls instead of idling ATM. Will get Malcolm to help adjust the idle, however I just have a couple of questions that you guys may be able to help with:

1) The bike has a noticeable flat spot between 6-8rpm's - is this normal with a standard carb? If not, what should I be checking?

2) As the idle needs adjustment anyway, can anyone tell me if it would be worthwhile setting the idle a bit higher to assist me round Taupo? Has anyone actually done this with there FXR for a 'big track'?!

For all of you that thought my bike was to quiet before, you can hardly hear it at all now so I can come flying past you (yeah right) before you even know I am there!

Bring on TRRS - Which of you Wellingtonians are coming?

hmurphy

13th December 2010, 15:23

Well I have been racing a stock FXR since around halfway through last year and all I can say about the carb is it has a delay when you wind the throttle on. If this is what you mean, it's normal haha. It happens about halfway through its rev range if I wind the throttle quickly (that's when it's most noticeable) otherwise I don't have any other problems or flat spots.

Str8 Jacket

13th December 2010, 15:23

Well I have been racing a stock FXR since around halfway through last year and all I can say about the carb is it has a delay when you wind the throttle on. If this is what you mean, it's normal haha. It happens about halfway through its rev range if I wind the throttle quickly (that's when it's most noticeable) otherwise I don't have any other problems or flat spots.

Yep, that's the buggar!

You adjusted your idle to rev higher??

quallman1234

13th December 2010, 16:13

Cleaned the filter?

Ps Woo you finally got the stock carb!!!

Kendog

13th December 2010, 16:33

Bring on TRRS - Which of you Wellingtonians are coming?
Trudes and I will be there.

I have a GN carb, so may not be the same but I get idle issues i.e. it wont idle, when I come in after a race. This mainly happens later in the day when the bike is hot, especially if we are running lots of races. It's also hard to start when hot.

all4A50s

14th December 2010, 15:57

Bring on TRRS - Which of you Wellingtonians are coming?

I'll be there with bells on.

Str8 Jacket

14th December 2010, 16:03

I'll be there with bells on.

Please please please also wear some clothes!!!