Cobra Tapered Classic Pipes

[FrankZ]

Just wanted to Know if anybody has these and what they thought of them. I've been hesitant to change from the stock pipes milage etc. but after the Gift Run this past Sunday and seeing a few Shadows with Customs on them Thinking I want a Change :wink_2:

[freshmaker]

I recently put the Cobra StreetRod's on my 02 SS750 and I love them.

[FrankZ]

Thanx Fresh If those are the one's you got in your Avatar they look like just like the Vance & Hines Shot's I just want to add a little more Bark and smooth out the lines a bit I'm goona do the Bilski Mod get rid of the Lunch Pail, maybe do the signals over in Mini Cats and change out the headlight to a Double Oval Cause I could use a little more light and don't want the Tri-look of adding spots :wink_2:

[freshmaker]

You'll love em over stock any day. The Mods never end. Good luck. Post pics as you go. Would love to see them.

[FrankZ]

Funds coming by late January should have stuff by Feb. I'll get the pipes and Jetkit Last then it's off to the Shop for that:wink_2: . lights should be no problem also gonna put some progresives on the rear, I don't know if I'll do the Bean Box but there's new mirrors, pegs and grips on the list also a new Aircleaner cover. I was going to add saddle bags throw overs but that defeats the purpose of cleaning up the tail end, I do have to put a sissybar on to stop the wife complainin when she rides plus some local custom seat work and my Bro Rich is checking his airbrush for a stencil job for the center of the Tank. There will be before and after Pix nothin radical just cleaned up and personalized :sasmokin:

[freshmaker]

I've got a similar list. Lights, bars, controlls, new paint...Does it really every stop?

[FrankZ]

Naw guess it never dose but I'm only gonna have one shot at some moderate dollar mods and some Ride gear so I'm gonna stretch them dollars as far as I can:wink_2:

[pegscraper]

Funds coming by late January should have stuff by Feb. I'll get the pipes and Jetkit Last then it's off to the Shop for that:wink_2: . lights should be no problem also gonna put some progresives on the rear, I don't know if I'll do the Bean Box but there's new mirrors, pegs and grips on the list also a new Aircleaner cover. I was going to add saddle bags throw overs but that defeats the purpose of cleaning up the tail end, I do have to put a sissybar on to stop the wife complainin when she rides plus some local custom seat work and my Bro Rich is checking his airbrush for a stencil job for the center of the Tank. There will be before and after Pix nothin radical just cleaned up and personalized :sasmokin:So what you're saying is I'm being replaced??:no: :stop: Think before you just throw me away......:crying: Leave me by the wayside.. nothing left to live for......:grenade: :big gun:

Pegs (lostbutnotforgotten)

[FrankZ]

Well I've come to know you as a legend Pegs ( yeah right) :wink_2: Unless your just stock run of the mill, cheap rubber with a bit of flash pressed metal, what better way to honor your presence here then with a set of LEGEND PEGS (layin it on thick here) and to keep the respect going Legend Grips to match :wink_2: what better way to remember you And If your Believin that :biggrinje

[Fanofjr]

I have the Cobra Slash cut and they are great. Nice sound. Re-jetted but don't really think that needed to be done.

[FrankZ]

Thanx for the input Fanofjr I'll still do the Jet Kit I've seen some that say you do need it and others say you don't but I'd rather err on the side of caution :wink_2: Plus I don't want to get through half of next season and end up with Burnt Valves and miss the other half

[navillustoo]

Frank,
You've got the right idea! Anyone that says they didn't need to rejet after adding free flowing aftermarket exhaust doesn't have a clue! They're too tight to spend the money or they're afraid to work on their carbs, or both! These engine's will benefit from a rejet in total stock form. You'll see a gain in power even though you've done nothing else! Granted, it's a very small gain without opening up the exhaust flow, but there's a gain just the same.

Brian

[FrankZ]

Thanx Navill Now the question is do I want to do the Bean Box mod while I'm at it and make it just one trip to the shop for jetting not that I really need the extra power but Im considering it :wink_2:

[Fanofjr]

I do have a glue about the re-jet. I said that I didn't think I needed to re-jet...that came from two mechanics however, like you I didn't want to take a chance on the engine. It wasn't that tough of a job to re-jet. You can also check your plugs after changing the pipes to see how they are firing. Yes there a slight increase in power. That's one of the good things about these type of forums you get first hand information from people that have experience with different changes etc. Good luck with the pipes and I'm sure you will enjoy them.

[navillustoo]

fan,
My comments about some folks not having a clue were not directed towards you, you said you did rejet. There are a few folks here on this forum that think rejetting is not necessary, but most of whom I was speaking are on the HondaShadow.net forum.
To set the record straight, a stock Honda Shadow engine will benefit from a rejet. It doesn't matter whether it's a 750 or an 1100, the 600's are the worst off, they all are jetted very conservatively from the factory. By this I mean, the idle circuits are lean to pass EPA requirements and the off-idle circuits tend to be on the rich side. Honda set the carbs up this way to ensure they weren't replacing engines under warranty. A rich engine is less likely to sustain damage from being run too hard than an engine that is jetted to make the most power. An engine that makes the maximum power it is capable of, is jetted on the lean side. To understand this better, imagine a point on a line. This point is the perfect Air/Fuel ratio of 14.7 to 1.(That's 14.7 parts air to 1 part fuel) On one side of that point the engine becomes rich(let's say 12 parts air to 1 part fuel) and on the other side it becomes lean(16 parts air to 1 part fuel)
A carburetor, with it's separate circuits that supply fuel for varying stages of the engine's RPM range, can only provide averaged ratios. It is a compromise at best. That is why most modern engines are using electronic fuel injection to supply the fuel to the combustion process. EFI is much more accurate than a carbureted induction system.
The whole point of this is to illustrate that whenever someone modifies an engine to increase(or decrease) the airflow through an engine, a carburetor will need to be re-calibrated to maintain the A/F ratio at or near 14.7 to 1.

Brian

P.S. Those are two mechanics I wouldn't be taking my bikes to!

[freshmaker]

Thanks for the information Brian. One quick question. Is there a way to know without going to a mechanic, how much change you need to make. I know I can purchase jet kits from almost anywhere, but how do I know which one I should buy?

[navillustoo]

Thanx Navill Now the question is do I want to do the Bean Box mod while I'm at it and make it just one trip to the shop for jetting not that I really need the extra power but Im considering it :wink_2:

Frank,
If you're not going to do the rejet yourself and you don't want to pay the shop to rejet twice, then I would have to recommend you do the bean-box mod before you rejet. The bean-box mod provides the engine with so much more air that the jetting is increased by about 15 jet sizes! There's no way you could get by with a Stage 1 rejet with the bean-box mod, it has to be a Stage 3 rejet. While Dynojet doesn't have a Stage 3 kit for the 750's, Thunder Air Products provides one. It is an 1183 kit (normally used on the ACE, but TAK says it's needles are ideal for the Stage 3) with 134-138 main jets instead of the smaller ones in the 1183 kit.

If you aren't running aftermarket pipes, you won't want to do the bean-box mod.

Brian

[navillustoo]

Thanks for the information Brian. One quick question. Is there a way to know without going to a mechanic, how much change you need to make. I know I can purchase jet kits from almost anywhere, but how do I know which one I should buy?
freshmaker,

It's pretty much all spelled out in the instruction sheet from Dynojet. Check it out:


http://www.dynojet.com/pdf/1182.pdf

The 1182 kit is what you'll need to do a Stage 1 rejet for any 750 Spirit. If you have done or will be doing the bean-box mod or plan to change to a boot-leg intake or TAK, then the Stage 3 kit that Thunder Air Products sells is the one you'd need.

Brian

[pegscraper]

Frank,
If you're not going to do the rejet yourself and you don't want to pay the shop to rejet twice, then I would have to recommend you do the bean-box mod before you rejet. The bean-box mod provides the engine with so much more air that the jetting is increased by about 15 jet sizes! There's no way you could get by with a Stage 1 rejet with the bean-box mod, it has to be a Stage 3 rejet. While Dynojet doesn't have a Stage 3 kit for the 750's, Thunder Air Products provides one. It is an 1183 kit (normally used on the ACE, but TAK says it's needles are ideal for the Stage 3) with 134-138 main jets instead of the smaller ones in the 1183 kit.

If you aren't running aftermarket pipes, you won't want to do the bean-box mod.

BrianAre the needles in the stage one and stage three jet kits the same?

Pegswantstoknow

[navillustoo]

Are the needles in the stage one and stage three jet kits the same?

Pegswantstoknow

Pegs,
That depends on which Stage 1 kit you're talking about! As I stated, there is no Stage 3 kit available from Dynojet for the 750's. Thunder Air Products has put together a Stage 3 kit for their intakes using the 1183 Dynojet kit which is for a 750 ACE. They claim the 1183's needles work better in the Stage 3 set-up than do the needles that come in the 1182 kit. The 1182 kit is for the 750 Spirits. The 1184 kit, which is listed for the 2001 750 Spirit, is identical to the 1182 kit. I don't know why they have two kits that are identical with two different numbers. There may be a good reason, but I have never heard it! It may have something to do with the heaters that are in the '02 and on carbs. I don't know if they used these heaters in the 2001 models.
So to answer your question in general, yes, the needles used are the same for Stage 1 and Stage 3. The jets are where the big difference lies. One would not have to buy a separate Stage 3 kit if you already have the Stage 1 installed, you just need to buy individual 134 and 138 jets that are available from Dynojet for $2.00 each.

Brian

[pegscraper]

solinPegs,
That depends on which Stage 1 kit you're talking about! As I stated, there is no Stage 3 kit available from Dynojet for the 750's. Thunder Air Products has put together a Stage 3 kit for their intakes using the 1183 Dynojet kit which is for a 750 ACE. They claim the 1183's needles work better in the Stage 3 set-up than do the needles that come in the 1182 kit. The 1182 kit is for the 750 Spirits. The 1184 kit, which is listed for the 2001 750 Spirit, is identical to the 1182 kit. I don't know why they have two kits that are identical with two different numbers. There may be a good reason, but I have never heard it! It may have something to do with the heaters that are in the '02 and on carbs. I don't know if they used these heaters in the 2001 models.
So to answer your question in general, yes, the needles used are the same for Stage 1 and Stage 3. The jets are where the big difference lies. One would not have to buy a separate Stage 3 kit if you already have the Stage 1 installed, you just need to buy individual 134 and 138 jets that are available from Dynojet for $2.00 each.

BrianThanks for your help, Brian!

Pegsneedshelp,askanyone

[FrankZ]

Thanx for all the Info Guy's I feel I've just had a crash course on " Proper Cycle Tweaking " after careful thought I'll probly just do the pipes and leave the airbox alone just stage 1 but this little post has taught me a lot :wink_2:

[FrankZ]

The Shop I bought my Bike at will install aftermarket pipes right there before you even roll it off the lot, I didn't think I wanted them at the time but as I was in the line up at the gift run the only way I knew my Bike was running was the slight vibration of the engine at idle couldn't even hear it running plus the tapperd Classics clean up the look long and lean :wink_2: