Yamaha TRX850 Enthusiasts Forum

I used to get max 325 km to reserve, but it was getting worse, ended up at 290 to reserve so I renewed the needles and emulsion tubes (got from Kedo).
Standard sizes, now I'm getting over 400km to reserve, over 440km to a tank (freeway runnning, speed range 60-120km/h).
30% improvement, wasn't expecting that!!! Bike was 175000km on original needles/jets.

Previously I was trying to work out how to squeeze another litre of fuel on board so i'd only need to fill up once a week....

wow 12.50euro for a needle and the same for emulsion tudes, and they deliver to Australia. Excellent

Holy crap! That's amazing

brenyw wrote:I used to get max 325 km to reserve, but it was getting worse, ended up at 290 to reserve so I renewed the needles and emulsion tubes (got from Kedo).
Standard sizes, now I'm getting over 400km to reserve, over 440km to a tank (freeway runnning, speed range 60-120km/h).
30% improvement, wasn't expecting that!!! Bike was 175000km on original needles/jets.

Previously I was trying to work out how to squeeze another litre of fuel on board so i'd only need to fill up once a week....

Holy crap, with my flatties i get 230km to reserv when having fun and 190km when keeping up with the R1´s etc!
You have an extra tank under seat don´t ya??

brenyw wrote:I used to get max 325 km to reserve, but it was getting worse, ended up at 290 to reserve so I renewed the needles and emulsion tubes (got from Kedo).
Standard sizes, now I'm getting over 400km to reserve, over 440km to a tank (freeway runnning, speed range 60-120km/h).
30% improvement, wasn't expecting that!!! Bike was 175000km on original needles/jets.

Previously I was trying to work out how to squeeze another litre of fuel on board so i'd only need to fill up once a week....

WOW.. 175 000 kays out of a set of needles thats got to be the highest travelled trx ive heard of.
good one

78mpg are you serious wow thats amazing Im lucky if mine does 40mpg ever.

first tank after the new needles/jets got to 420km before reserve, thought i must've topped up the tank without resetting the odometer, after 3 more tanks it was confirmed, 400+.

Needles/emulsion tubes come out at approx $60aud for the full set + postage ~$30aud, I was quoted $240 set at the local shop...

Motor does feel a little lean at light throttle but no different when give it the stick. Maybe the loud exhaust causes this??

I just replaced the chain/sprockets (54000km) but these were really knackered, every 2nd tooth broken off the drive sprocket.(16t)

brenyw

brenyw wrote:I just replaced the chain/sprockets (54000km) but these were really knackered, every 2nd tooth broken off the drive sprocket.(16t)

brenyw

FFS

Can I suggest that you up your reviews of consumables. You are a very lucky boy that the chain hasn't jumped or snapped - fubaring your engine cases and possibly your legs

^^^what he said

X 2, Albeit with broken engine cases, and the oil leak that goes with it, you wont be riding it whilst your plated ankle heals!!!

Dave E

brenyw wrote:first tank after the new needles/jets got to 420km before reserve, thought i must've topped up the tank without resetting the odometer, after 3 more tanks it was confirmed, 400+.

Needles/emulsion tubes come out at approx $60aud for the full set + postage ~$30aud, I was quoted $240 set at the local shop...

Motor does feel a little lean at light throttle but no different when give it the stick. Maybe the loud exhaust causes this??

I just replaced the chain/sprockets (54000km) but these were really knackered, every 2nd tooth broken off the drive sprocket.(16t)

brenyw

I am lucky to get 240km from a full tank to reserve, $90 for Needles/emulsion tubes sounds great. What is the order number on the kedo site?
the photo I looked at on the kedo site looks like a set of needles and jets from a different carby.
Cheers Sliderman

Looks like part number 28958 needle jet (emulsion tube) sold singly. 12.50 Euro`s

And part number 28983 jet needle (needle) sold singly. 12.90 Euro`s

I must admit Kedo`s website isn`t the easiest to navigate, I get a yearly catalogue posted out to me, most of it in a mix of English and German which is marginally easier to understand.

Thanks Mincehead, will order some soon.

I got needles and tubes from Kedo 2 weeks ago, and they are now in the bike and working great

The jet number is as per Mincehead's post but the needle is different.

I had a look back at the invoice in my e-mail, parts odered were as follows:

quantity item number description
-----------------------------------------------------------------------
2 x 28983 Jet Needle, 1 Piece
2 x 28768 Needle Jet (Stock Size), 1 Piece (requi
1 x 2012* KEDO Katalog 2012 (472 pages)

Payment via: credit card
Total amount: EUR 68,68

Weird, because in their website listing the emulsion tube / needle jet is definately listed as:

Item 28958: Needle Jet (Genuine Size), 1 Piece
Application: TDM850'96-'98, TRX850

Jet needle and needle jet are wearout parts ! If these are worn, it will cause the engine a loss of performance by raised enrichment of mixture, and will raise fuel consumption
Due to construction especially all 750/850-Models are affected by premature wearout and begin to jerk
It is always necessary to exchange jet needle and needle jet in pairs. Price per unit

Hmmm:

Related items, Items of this catalog page

28768 Needle Jet (Stock Size), 1 Piece (required 2 times) 12.50 €
XTZ750,TDM850-'95
28094 Jet Needle (Standard, German Model), 1 Piece 12.90 €
TDM850-'95
28983 Jet Needle, 1 Piece 12.90 €
TRX850,TDM850'96-'98
27572 Jet Needle (OEM), 1 Piece 57.15 €
TDM850-'95 German Version


Taken direct from their web site, 28768 is listed for the XTZ750 and TDM850 to 1995.

Edit:

I think the ZTZ, TDM and TRX share the same carburettors, so I guess those emulsion tubes are identical too but Kedo give them different part numbers to suit their methods of gathering sales information etc.