dynojet kit need help

[Ffeffedelaqua]

Hi all
please can someone possibly help a novice
I have a 95 speed triple - now taken of the standard exhaust fitted twin laser race cans and replaced the stock air filter with a k&n replacement - keeping the filter box. original mikuni carbs, bikes low mileage under 5k. Had some great help of which it was stated i would be best to fit a dynojet kit stage 1 as the bike may run lean .the kit i have is E5102 uk.002. with DJ124 jets. in the kit comes a drill bit to enlarge the plastic slide lift holes!!!!!. (is this ok - once this is modified theres no going back)
all other parts seem to be ok jets, emulsion tubes, needles....
If anyone has any advice or help with the settings it would appreciated.....
basically set all to k&n specs and tweak ???
Really looking forward to getting my baby on the road for the great summer we are going to have
cheers
kev

[IrlMike]

Be aware that the Mikunis can have a slide/emulsion tube wear issue that is made much worse with the steeper tapered Dynojet needles. The tubes wear oval & 'leak' causing a rich/misfire condition when picking up throttle. Had this on a Tbird & seen it on a Suzuki too. Fortunately there's no slide drilling for the Tbird kit, so I could easily revert back. Others here may have better info on the 98hp T3 kit.

[KitNYC]

I would personally clean and oil the original foam filter and put it back in, then return the K&N filter and DynoJet kit. The original filter will flow plenty of air *and* keep dirt out of the motor, and genuine Mikuni jets cost far less than DynoJet bits. The money you save can be spent on dyno runs to show you which Mikuni jets to buy...

The air delivery system on these bikes is really very, very good, and a K&N filter is a huge downgrade in filtering with no real upside. DynoJet charges a huge premium for R&D, and frankly, the quality of that R&D seems to me to be rather low. If you really want to tune, get the bike on a dyno. If you just want to throw in some jets that should work with an aftermarket pipe and call it close enough, 130-125-130 Mikuni jets should cost next to nothing.

Cheers,
-Kit

[Nobeard]

I fitted the E5102.003 kit - it had extra jets. 128 and 132. the 128 was intended for use with a hi flow filter and the 132 for filter and performance exhaust. As I have a K&N I fitted the 128, drilled the slides and yes I did notice an overall improvement. At this point I should mention that I have since changed to Keihin carbs with 130 - 125 - 130 jetting. Just read the blurb that came with the kit again and it does not mention what the 124 jet is intended for - could just assume it is for the stock filter. I would agree partly with what Kit says - ie send back the dj kit, but I would keep the K&N - look after it properly and fit some Keihins

[Ffeffedelaqua]

Cheers all
appreciate your help, have been stewing this over for a couple of days. Going to keep the standard air box and use the k&n air filter which i purchased (was told unable to buy oem filter on its own from triumph) wanted just to popon some noisy cans get a grin factor - i dont race top end or ride too hard anyways - actually bit of a wuss.... as was kindly given a free dj kit with the race cans i bought off ebay will just pop in the upgraded main jets as kit says and see how they fair up. Not using the dj needles as you pointed out irlmike and np beard keep it healthy and clean.. Will in time look and get some keihins as i think its the future !!!
cheers again
happy biking

[Fohat]

Originally Posted by IrlMike

Be aware that the Mikunis can have a slide/emulsion tube wear issue that is made much worse with the steeper tapered Dynojet needles. The tubes wear oval & 'leak' causing a rich/misfire condition when picking up throttle. Had this on a Tbird & seen it on a Suzuki too. Fortunately there's no slide drilling for the Tbird kit, so I could easily revert back. Others here may have better info on the 98hp T3 kit.

I think this rich/misfire is the problem with my trident - what is the solution? Do the carbs need replacing?

All replies appreciated

[IrlMike]

Originally Posted by Fohat

I think this rich/misfire is the problem with my trident - what is the solution? Do the carbs need replacing?

All replies appreciated

New needle jets (emulsion tubes) & new needles probably too. Then there's the question of slide wear. However new slide blocks (bits that slides move in, & wear) aren't available, tho' I heard (on Trat) of someone making some a while back, should be some old threads with more info?

The needle jets & needles solve the problem, but the extent of slide wear determines how quickly or otherwise it will reappear. May well be long enough not to be a big issue & relative to your annual miles too I suppose. (Can't give any mileage info from own experience, sold the Tbird & the Suzuki I fixed wasn't mine.)

It's possible to fit Keihins, which don't have the problem & are reckoned to give a little better fuel mileage. These are the ones fitted to post 98 Classic Triples (Tbird/Sport, LegendTT) & also some late model Sport/Touring T3s (post 98?). The latter are jetted right (for 900s) & provide the info for the jet changes needed, for stock intake, to those from a Classic Triple.

Some here have used pods with the Keihins with good results. A search would turn up this quite long, fairly recent thread.

Might want to check it isn't just a blocked jet 1st? (Or something else, electrical connection maybe?)

[IrlMike]

Sorry, just noticed it's a 750 you have, Keihin option would need some further research to decide if that route is possible?

[matt.speedtriple]

Originally Posted by Ffeffedelaqua

Cheers all
appreciate your help, have been stewing this over for a couple of days. Going to keep the standard air box and use the k&n air filter which i purchased (was told unable to buy oem filter on its own from triumph) wanted just to popon some noisy cans get a grin factor - i dont race top end or ride too hard anyways - actually bit of a wuss.... as was kindly given a free dj kit with the race cans i bought off ebay will just pop in the upgraded main jets as kit says and see how they fair up. Not using the dj needles as you pointed out irlmike and np beard keep it healthy and clean.. Will in time look and get some keihins as i think its the future !!!
cheers again
happy biking

Get the DJ needles and springs fitted as well as i said to you on the phone and stop being a girl

With your bike having done such a low mileage then no worries about tube ovaling or wear so get them stuck in and let you bike show you what it can really do. You know you want to really as you won`t always be tootling around following the wife

Cheers, Matt.

[Fohat]

Originally Posted by IrlMike

New needle jets (emulsion tubes) & new needles probably too. Then there's the question of slide wear. However new slide blocks (bits that slides move in, & wear) aren't available, tho' I heard (on Trat) of someone making some a while back, should be some old threads with more info?

The needle jets & needles solve the problem, but the extent of slide wear determines how quickly or otherwise it will reappear. May well be long enough not to be a big issue & relative to your annual miles too I suppose.

Might want to check it isn't just a blocked jet 1st? (Or something else, electrical connection maybe?)

Thanks IrlMike - the carbs have been cleaned twice by local shop and new tank put on too.
Do needle jets and needles need to be a bigger than standard size? I can't do this type of maintenance, so I'd have to tell the bike shop. Annual mileage approx 5000.
The misfire is when engine is under load ie accelerating. Its smooth at a constant speed, and accelerates smoothly after 4000 rpm.
After shop cleaned carbs, both times it was fine for a week and then misfire started again.
It gets worse during a long ride.