A forum for owners of Yamaha TTR250 trail and enduro bikes!

Members Login
Username 
 
Password 
    Remember Me  
The TTR250 FAQ web pages -> TTR250 -> Carb stuff -> Recent Carby Overhaul
Post Info TOPIC: Recent Carby Overhaul
BM Steve


Guru

Status: Offline
Posts: 691
Date:
Recent Carby Overhaul
Permalink  
 

Hi All

Thanks To Jarrah, who kindly sent me some leftover carby bits, seals, gaskets, accelerator pump, O-Rings etc...and especially the 52.5 Main, my bike is running great now

A bit more acceleration and power all over, it's great in the singles, smooth on rough uphills, just better all round

I removed the snorkel and enlarged the opening to around twice the size

fitted the 52.5 jet and dropped the clip on the needle 1 notch

Checked the float level, a general clean up, new float bowl gasket, seals and O-Rings etc...

A quick adjustment on the mixture screw and idle screw and off it went first time

Took about 10k's to settle in and a couple more tweaks to the mixture screw

So how's it sound now ?  Well it's still quite of course, standard muffler, but has a nice roar when you open it up a bit

Thanks again Jarrah

Next thing is the Exhaust, I'm going to do the De-restricting mod in a while as seen on facebook

Cheers all

BM Steve

P.S.

I'll take a few shots with the new camera as well biggrin

 



-- Edited by BM Steve on Wednesday 4th of June 2014 11:43:56 PM

__________________

2004 TTR250 - Highway Dirtbike Hand Guards, 38mm Bar Risers, D606 Front & Rear, Opened up Airbox with Twin Air Filter, Re-jetted Carby, B+B Bash Plate & Frame Guards, DIY 3mm Alloy Tail Tidy, 14/47 Gearing.

 
TT-R250M


Super Guru

Status: Offline
Posts: 1324
Date:
RE: Some Feedback
Permalink  
 

Great news Steve, good to hear. thumbsup.gif

You made a typo on the 52.5 ''Main'', I'm pretty sure you meant pilot. wink

Let us know how your exhaust mod goes, plenty of pics would be good.

Cheers,

Jarrah



__________________

2000 TT-R250M-

Spoiler
BM Steve


Guru

Status: Offline
Posts: 691
Date:
RE: Recent Carby Overhaul
Permalink  
 

TT-R250M wrote:

Great news Steve, good to hear. thumbsup.gif

You made a typo on the 52.5 ''Main'', I'm pretty sure you meant pilot. wink

Let us know how your exhaust mod goes, plenty of pics would be good.

Cheers,

Jarrah

 

"DOH"

hA852964F.jpg



Attachments
__________________

2004 TTR250 - Highway Dirtbike Hand Guards, 38mm Bar Risers, D606 Front & Rear, Opened up Airbox with Twin Air Filter, Re-jetted Carby, B+B Bash Plate & Frame Guards, DIY 3mm Alloy Tail Tidy, 14/47 Gearing.

 
TT-R250M


Super Guru

Status: Offline
Posts: 1324
Date:
Permalink  
 

BM Steve wrote:
TT-R250M wrote:

Great news Steve, good to hear. thumbsup.gif

You made a typo on the 52.5 ''Main'', I'm pretty sure you meant pilot. wink

Let us know how your exhaust mod goes, plenty of pics would be good.

Cheers,

Jarrah

 

"DOH"

 

 Lol it wasn't that big of a deal. biggrinbiggrin

Jarrah



__________________

2000 TT-R250M-

Spoiler
BM Steve


Guru

Status: Offline
Posts: 691
Date:
Permalink  
 

Well it's been 3 weeks or so now since I overhauled the carby, and all is good

it was powering up some really nasty step shaped tracks the other day, flat out, back off, flat out, back off, anyway you get the picture

Up steeply for 3-4 meters, then flat for 2-3 meters, then up again, this goes on for about 50 meters

Handled it faultlessly, the TwinAir filter and the air Box mod is a great improvement

It's taken a bit of getting used to because the power delivery is much faster now

I think I need to adjust the throttle cables, a little more freeplay would be good I think

All good, I really have to do the Exhaust Mod  biggrin



__________________

2004 TTR250 - Highway Dirtbike Hand Guards, 38mm Bar Risers, D606 Front & Rear, Opened up Airbox with Twin Air Filter, Re-jetted Carby, B+B Bash Plate & Frame Guards, DIY 3mm Alloy Tail Tidy, 14/47 Gearing.

 
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.
The TTR250 FAQ web pages -> TTR250 -> Carb stuff -> Recent Carby Overhaul


Create your own FREE Forum
Report Abuse 		Powered by ActiveBoard