FXR carb help

[Jubba]

i wondering if some one can help.ive just cut my standard exhaust down so it goes under my engine and ends there to get it out out the way in doing this i think my carb needs to be retuned as now when i put the hammer down it is gutless as and when slowing down it choughs and splutters and back fires i no most plp would have had this problem i just dont no how to fix it
cheers

245522

[hmurphy]

That muffler looks dangerously close to the ground. Sure it wont hit the ground going through corners with the suspension under pressure? You might have air leaks somewhere, i.e. poor welding, manifold damage etc. When I did this muffler upgrade my bike seemed to run better down bottom. I didn't have any trouble with the stock carb. In other words, you shouldn't be having any trouble!

[ducatilover]

You will need a bigger main jet. Remove the one you have and tell us what size it is, I might have some suitable ones here if it's a Keihin 393 series.

[F5 Dave]

That pipe will drag on the ground when the suspension compresses. You won't be able to ride that at Kaitoke like that so don't bother to bring it until it is fixed. Sorry not trying to be a wanka, but you should be aware that it will damage the track. As well as likely spit you off.

Also you will need nylon over parts that scrape. Again don't bother trying your luck without protection. We need to keep this track & Fish will have to fail you without it & its unfair to pressure him.

[Jubba]

Ive only had the bike three days and i havent put any nilon on at all yet as that will be my last thing to do.i have alot left to do yet and im in auckland

[F5 Dave]

3 whole days? - what have you been doing?:laugh:

Your location sez wellington, but you will need nylon in Auckers too. All good, was just aware that there was 3 days left till the next Kaitoke race.

[Bert]

Ive only had the bike three days and i havent put any nilon on at all yet as that will be my last thing to do.i have alot left to do yet and im in auckland

What it is with you and your brother... one starts the other stops... Give Dave a kick.

Anyway welcome back to the dark side; give us a yell; I've got some bits for ya.

[gav]

Yeah, you will need to tuck that muffler in better, here's mine that uses the standard muffler, well, it was standard once, now been shortened etc.

245625

[Jubba]

[QUOTE=gav;1130138997]Yeah, you will need to tuck that muffler in better,[

do i need to off set it it so it dosent cook my wheel or is it ok to hav it inline with it

[Henk]

I've done a few using the stock muffler. I run them in the center with the gases exiting to the side haven't cooked any tyres yet. If you put them on an angle you may still drag it.

[Jubba]

Do u have to cut the actual muffler its self down or just the pipe to get it to where u want it to sit.is the orignal muffler to long?

[Henk]

I've done both, the last one I did I just used the whole stock muffler to save messing about. I'll try and get some pictures tonight. With the whole muffler and the stock header they are damned quiet but still seem to perform OK.

[Henk]

There's a good thread on the FXR150 forum on how to do it here

http://www.fxr150.co.nz/discussion/viewtopic.php?f=3&t=117

I pretty much just followed what Hamish did but have the muffler exit off plane by 90 degrees to exit to the side.

[Jubba]

Does any1 have a spare muffler the can part with im gona try again.

[Jubba]

Cheers henk im gona copy that link.hopfully will be done by the next mount wellington meet,lol if i can find another exhaust as ive stuffed mine

[hmurphy]

One thing I did after this was cut it off again and then turn it into a straight through muffler. This mean getting a hammer and a bit of wood and smashing out the 'box' type muffler thing inside the muffler. I then used this steel mesh stuff, rolled it into a cylinder, put it in the middle of the muffler with pink bats as packing, and welded the ends up again. It made it louder (which wasn't the purpose) and made the muffler far less restrictive for exhaust flow. Power wise, I dunno maybe it did something. Pretty hard to tell the difference between 12hp and 13hp really haha. I use a different muffler now because the stock one doesn't fit on my new frame.

[Jubba]

U dont happen to still have your old one do u?

[hmurphy]

Yeah but I think I'm gonna use it on my brothers bucket. Sorry mate

[Bert]

http://www.trademe.co.nz/motors/motorbikes/parts-for-sale/exhaust/auction-401874211.htm

hack up something like:
http://www.trademe.co.nz/motors/motorbikes/parts-for-sale/exhaust/auction-401780559.htm

http://www.trademe.co.nz/motors/motorbikes/parts-for-sale/exhaust/auction-402440865.htm

far to big but nice price:
http://www.trademe.co.nz/motors/motorbikes/parts-for-sale/exhaust/auction-403008120.htm

[Jubba]

cheers burt ill look at the pit bike one.how long till your reddy?

[Jubba]

is there a list anywhere of available numbers for auckland

[Henk]

I'll try and put an updated list together before the next meet based on results from the last two or three seasons. No gaurantees though, people hve been known to pop out of the woodwork after long breaks.

[Bert]

cheers burt ill look at the pit bike one.how long till your reddy?

how long is a piece of string???:confused::no:

[Jubba]

haha and you said give mudflaps a kick in the ass

[Henk]

is there a list anywhere of available numbers for auckland

Have a look in here, up to date as of the last meeting as far as I can tell but JC has the last word.

[Jubba]

Ok so my new ehaust arrived yesterday i messured it all out and it fit in perfect with heaps of ground clearence this time and all the weilds are hole proof.problem the bike wont start now.it starts when the exhaust is off and when my old botched one is on but wont with the new.it fires just but wont catch and run .any ideas?

[ducatilover]

Have you tried the old exhaust after putting the new one on?
If not, I'd say it's unrelated to the exhaust.
Did you do the welding on the bike or off the bike?

[bucketracer]

Silly question, but can you blow through the new exhaust? to check if its blocked, a rag left inside perhaps, it has happened before.

[Jubba]

yup its all clear and fine the only thing i can think of is that with the new muffler the two end caps in it are only riveted on not weilded along the seam,would this stop enough back pressure from happeing:eek5:?.
is anyoner around the papatoetoe area or close ish that i could bring it around to have a look at as im really just plucking it all as im not to it in this area:bash:.and the 17th is getting closer:gob:

[Jubba]

Have you tried the old exhaust after putting the new one on?
If not, I'd say it's unrelated to the exhaust.
Did you do the welding on the bike or off the bike?

I did all the welding off the bike.ill put the old one(that i cut the crap out of) back on tonight and get back to u

[Jubba]

http://www.trademe.co.nz/motors/moto...-401780559.htm

i put this on it

[Jubba]

does anyone have a fxr 150 carb fuel mix screw?

[Henk]

Possibly, in a dead FXR carb but given the state of my garage at the moment I won't know for sure until I load the van next weekend. If you get stuck let me know and I'll have a look and try and drag one to the track next Saturday. What happened to yours?

[Jubba]

i got it all going again with the new exhaust on and it all started fine but when i gave it any throttle at all it would just die.the fuel screw was a bit striped and i just made it worse so i had to drill it out.its OK tho i didnt get the thread or any thing so just need a new one hopefully.I'm getting short on days till the 17th.

[Jubba]

help.is anyone able to help ive still got to nilon my wire my oil and do my over flow and i dont have a working carb and racings next week im kind stuck.

[Henk]

Spend your time getting the nylon sorted and drilling holes to wire the sump plug, I've got plenty of lock wire so we can do that next Saturday if you don't have any. I have a stock FXR carb that is supposed to be good that I can lend you for the weekend and will try and find an air screw next Friday when I load up the van.
We'll probably be there about 9 Saturday and will be there until Michele gets bored, hopefully my thumb works well enough by then to let me race. Tip of the day is try not to run people over, the collateral damage can be annoying to say the least.

[cotswold]

We'll probably be there about 9 Saturday and will be there until Michele gets bored, hopefully my thumb works well enough by then to let me race. Tip of the day is try not to run people over, the collateral damage can be annoying to say the least.[/QUOTE]

As the for mentioned run over person it seems to be less of a long term problem to be run over than it does to do the running over, so let that be a lesson to you all, if a body is in front lying happily on the track try to avoid the pain of running it over.
Hope your digit is right soon

[Henk]

Hope your digit is right soon

So do I, you're getting ahead of me in the points and the October NI round is looming. That's the second time I've crashed trying to avoid running you over you suicidal maniac.

[cotswold]

So do I, you're getting ahead of me in the points and the October NI round is looming. That's the second time I've crashed trying to avoid running you over you suicidal maniac.

Ah that would be why you loaned me those wheels, you know you could just hang back and not harass me into making a mistake ?
I may not be at mt wllgntn this round as I have many bills to pay ( poxy Buell threw it's belt and the vans battery died ) and am trying to keep in the good books of her indoors, plus I want to go down to Kaitoki and that will cost me 2 months play money.
I will be bringing some kiwi red as I have been given a very cheeky Man of War Ironclad 2007 that should go down nicely.

[Henk]

If I had to choose between Kaitoke and Mt Welly I'd be heading south, in fact we are.

[Jubba]

[QUOTE=Jubba;1130140075][QUOTE=gav;1130138997]\I have a stock FXR carb that is supposed to be good that I can lend you for the weekend and will try and find an air screw next Friday when I load up the van.

thats wicked cheers mate.ill spend this week doing the rest.hopefully all will be well on sat will c you then

[Jubba]

What time to we need to be ther on sunday for racing?

[Henk]

Saturday is practice, gates open at about 9, no engines until 9:30, day ends about 3 or when everyone is bored with it.
Sunday gates open about nine, open pactice until 10-10:30 then graded practice until racing kicks off about 12.

[Jubba]

nice one see you sat mate

[Jubba]

247269247270247271247272

made these up the other night:yes: after breaking one on sat:facepalm:.