jet size for 8 valve 1100 w/pods and V&H????????

[Anonymous]

Anybody out there have an 8 valve GS1100 with pods and a 4 into 1 exhaust? If so, I would really appreciate knowing what size main jets you are running. I'm trying to get my 82 GS1100L set up, and the Dynojet kit appears to be way off....

[Hoomgar]

I am not sure. I know with my 8 valve which is now bored to 1085 and a 4 into 1 V&H with K&N pods we are using dynajet 130 mains to start with. That is in 33mm smooth bore carbs. I am not sure yet if that will be right but it should be close. We are starting with the needle half way.

[Anonymous]

The K&N jet kit I got for my 82 GS1100L came with stage 3 jets sizes of 165 and 170. I've tried them both and the bike still bogs down at anyhting over 3/4 throttle. I'm thinking that These jets are way too big.

[Hoomgar]

Man I am not the guy that knows I can tell you that but I agree that those jets sound way too big. I will sit back and let some of these guys that know their stuff from having more experience answer but I am thinking you would want to start with no larger than a 130 main but I could be wrong. What carbs are they?

[Jethro]

You need to e-mail DynoJet. I just don't understand why the jets are that big for your application. My 16V 1100E with pods and pipe are just right at 138's and needle in the 3rd highest setting. I even had to look on the website to make sure you had the right jets, sure enough, stage III uses 165 and 170??? E-mail them, something seems fishy...

[Anonymous]

Man I am not the guy that knows I can tell you that but I agree that those jets sound way too big. I will sit back and let some of these guys that know their stuff from having more experience answer but I am thinking you would want to start with no larger than a 130 main but I could be wrong. What carbs are they?

They are MikBS34SS carbs. I believe the stock main jet size is 115. !70 seems to be quite a jump for stage 3, doesn't it?

[Anonymous]

You need to e-mail DynoJet. I just don't understand why the jets are that big for your application. My 16V 1100E with pods and pipe are just right at 138's and needle in the 3rd highest setting. I even had to look on the website to make sure you had the right jets, sure enough, stage III uses 165 and 170??? E-mail them, something seems fishy...

I'll give that a shot, and if I get a response, I'll post it. My guess is that they will stick by what they list.

[Hoomgar]

Seems really rich. 145 maybe? But 165 170!

The thing will suck gas like a thirsty dog after the water 8O

[Jethro]

I'll give that a shot, and if I get a response, I'll post it. My guess is that they will stick by what they list.

See if they will explain why it is so different than the 16v 1100's. Maybe I am not thinking of something, but there is no way the fuel consumption between the 16v and 8v should be so different.

[Anonymous]

I'll give that a shot, and if I get a response, I'll post it. My guess is that they will stick by what they list.

See if they will explain why it is so different than the 16v 1100's. Maybe I am not thinking of something, but there is no way the fuel consumption between the 16v and 8v should be so different.

I agree. I could see maybe a slight difference, but somebody must have really messed up big time at Dynojet. I just find it hard to believe that over the years, no one else has run into this problem with their jet kit for 8-valve 1100s.

[Anonymous]

Got a response to my email to dynojet. It reads:

David,



There are many differences between the GS1100 16V and 8V. Obviously the cylinder heads, and cams are different, but the carbs are also different. These are the baseline settings that our researched determined to be the best. My recommendation would be to try a more air/ less air test. Try removing the filters from the bike, and driving it. This will allow more air to get into the cylinders and in turn, lean the mixture slightly. If you notice a power gain, or the bogging decreases then it will be safe to jet down. You could do the exact opposite, and tape over 1/3 of the filter surfaces and drive it like that. That will richen the mixture. Try these simple test procedures and see what kind of results you get from the bike. If you need more help from that point, feel free to give me a call at 800-992-4993 x105.



Thank you



Curt Schannen

Dynojet Research

Technical Support

(800)992-4993


Guess I can give that a try. I already know the bike is running very rich on the mains. Once I get the correct main size figured out, I'll email this guy and let him know what I found. Not that it'll do any good. Doubt they'll change their kit on my word.

[Einar J Skog]

Hi

Are you using K-N pods ???

[Anonymous]

Hi

Are you using K-N pods ???

No, they are generic pods. I'm sure they don't flow as well as the K&Ns, but these came with the bike. You can easily see through the filter, though, so I'm sure they flow pretty well.

[Anonymous]

Just a followup, in case anyone else runs into this problem with DynoJet's kit. I ended up with 138 main jets. I worked my way down from the 165 that came in the stage 3 kit. The bike is running nice now. A little rich at idle, but everywhere else it is strong.

[Anonymous]

Deathwish,

Did you drill the slides like they say in the kit?
If so, did you do it with a drill press or by hand drill?

I am installing one of these kits and I drilled one on my dad's drill press and the !@#&*** hole was crooked.....

Am I going to need to buy a new slide assembly now??