DSynojet kit

[leevtr]

Just wierd how the fitting instructions make no mention as to the use of the 190's.

Not really as they are more guidelines than instructions that need to be followed to by the letter. If it was as simple as just slapping 180's in as they say, then there would be no need for them to supply any other jets. 190's are simply there in case you need to go richer as Lloydie said, just as the 170's being there in case you need to go leaner.

(:-})

Yes but why put them in without saying why?? They tell you what both the 180's and 170's are for, so why assume you'll know why the 190's are there. Instructions are a bit pointless if not complete.

[lloydie]

Just wierd how the fitting instructions make no mention as to the use of the 190's.

Not really as they are more guidelines than instructions that need to be followed to by the letter. If it was as simple as just slapping 180's in as they say, then there would be no need for them to supply any other jets. 190's are simply there in case you need to go richer as Lloydie said, just as the 170's being there in case you need to go leaner.

(:-})

Yes but why put them in without saying why?? They tell you what both the 180's and 170's are for, so why assume you'll know why the 190's are there. Instructions are a bit pointless if not complete.

Because they are meant to be fitted by a Dyno guy when at the Dyno as these kits need a Dyno to set them up sure you can get close without one but how will you know if you don't stick it on a Dyno .

[leevtr]

Then why give any instructions at all ?? My point is either do all or nothing.

[VTRDark]

Maybe they need modding.

(:-})

[lloydie]

send dyno jet a heated letter asking them why the feck are they selling there kits with missing info !
but i have the feeling they response will be "unnecessary" as are the 190 main jets

[leevtr]

This is becoming an unnecessary bloody thread

[ebenviljoen]

send dyno jet a heated letter asking them why the feck are they selling there kits with missing info !
but i have the feeling they response will be "unnecessary" as are the 190 main jets

the 170's and 180's was unnecessary in my case. mine runs beautifully with 190's

[lloydie]

When mine was running a k&n art cans it had a Dyno jet kit fitted 190 mains . It ran ok but once I had it on the Dyno and fitted 48s pilot jets I was running 175 front and 180 rear mains .
A Dyno jet kit supply's the most common used jets that should get the fuelling close but as every bike is different it will need setting up on the Dyno .
Personally I now have removed the jet kit and k&n and fitted standard pArts as in hawks guide and it made better power across the entire rev range tho when it's rebuilt it's back to the Dyno just to make sure it's running it's best .

[ebenviljoen]

Mine was coughing like mad on the 180's alongside white plugs. I did however fine tune mine with adding a flow commander. I will get it on a dyno soon to get me results. I have a couple of weeks off from next week so will take it down for a few runs, been meaning to do it for months now

[VTRDark]

the 170's and 180's was unnecessary in my case. mine runs beautifully with 190's

We have a winner. And that is exactly it. Every bike is different even as standard there will be slight differences, hence the reason for supplying a selection of jets. It''s a shame they don't supply the 185's in the UK kits. Good ole rip off Britain I'm not saying you should do this, but if you made the needles richer then you may find you need to drop down to 180's or less on the mains. ebenviljoen did you drill the extra slide hole according to the dynojet guidelines or is that destructions.

(:-})

[leevtr]

With the results I've had before, and the hassle involved in making aftermarket air filters work, I'm going to stick to the 180's and 4th clip on the needles. Had that set up on both previous storms, and the power curves were both good and virtually identical, so it must be a very good general setting.
To be honest I think with hondas, the difference between one bike to another is negligable. The reason I say that is 2 fold. Firstly the dyno bloke who I've used, although a Suzuki fan and drag racer, admitted to me that Honda's are by far and away more consistent than most other bikes. Plus when I had my first CB1300 custom mapped, it made 127 bhp. That was with filters and full akra system btw, before anyone screams bullsh*t. I sold that one for another later CB1300, transferred all the parts, plugged the PC3 straight into it, and it was within 0.5 bhp. Not bad at all.

[VTRDark]

With the results I've had before, and the hassle involved in making aftermarket air filters work, I'm going to stick to the 180's and 4th clip on the needles. Had that set up on both previous storms, and the power curves were both good and virtually identical, so it must be a very good general setting.

Totally agree but that's not exactly sticking to their instructions for a base setting which is exactly what it is.... a base setting/starting point. IIRC you never bothered with the extra slide holes. If one is happy with the base setting and are happy with the results then great but that does not mean it's going to be the same for all and there may even be room for finer tuning. Obliviously changing things (especially on these bikes) like the air filter can have a drastic change which may require larger or smaller mains and/or different needle positions or pilot size.

(:-})

[leevtr]

With the results I've had before, and the hassle involved in making aftermarket air filters work, I'm going to stick to the 180's and 4th clip on the needles. Had that set up on both previous storms, and the power curves were both good and virtually identical, so it must be a very good general setting.

Totally agree but that's not exactly sticking to their instructions for a base setting which is exactly what it is.... a base setting/starting point. IIRC you never bothered with the extra slide holes. If one is happy with the base setting and are happy with the results then great but that does not mean it's going to be the same for all and there may even be room for finer tuning. Obliviously changing things (especially on these bikes) like the air filter can have a drastic change which may require larger or smaller mains and/or different needle positions or pilot size.

(:-})

Nope, never drilled the holes as it appears to be common knowledge that this doesnt improve things. My first kit was fitted by my mechanic at the time ( 8-9 years ago ) and he said the same thing. Aside from that its as per the instructions.

[ebenviljoen]

the 170's and 180's was unnecessary in my case. mine runs beautifully with 190's

We have a winner. And that is exactly it. Every bike is different even as standard there will be slight differences, hence the reason for supplying a selection of jets. It''s a shame they don't supply the 185's in the UK kits. Good ole rip off Britain I'm not saying you should do this, but if you made the needles richer then you may find you need to drop down to 180's or less on the mains. ebenviljoen did you drill the extra slide hole according to the dynojet guidelines or is that destructions.

(:-})

I did drill the extra holes in the end mate yes. I had a slight hesitation low down, and then thought ill drill them, which cured it. But I am running the pipercross as I mentioned which sucks alot of air.

[VTRDark]

I did drill the extra holes in the end mate yes. I had a slight hesitation low down, and then thought ill drill them, which cured it. But I am running the pipercross as I mentioned which sucks alot of air.

Thanks for the info. It's always good to get some ideas what setups people have with the piper filter as not many have used it. It will be interesting to see a dyno print out when you get around to it.

(:-})