- Posts: 778
- Thank you received: 67
Rejet with pods?
- rrsmsw9999
- Topic Author
- Offline
- User
Any input appreciated.
R
1980 KZ 1000E2
Crashed 6/2016
1980 KZ550A
Sold 3/2016
Please Log in or Create an account to join the conversation.
- 650ed
- Offline
- User
- Posts: 15344
- Thank you received: 2829
Attachment 00003a-133.jpg not found
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Please Log in or Create an account to join the conversation.
- loudhvx
- Offline
- KZr Legend
- Posts: 10868
- Thank you received: 1616
I'm all for modding and rejetting, but it's the last step, not the first.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
Other links.
Please Log in or Create an account to join the conversation.
- redhawk4
- Offline
- User
- Posts: 640
- Thank you received: 64
There's a reason KZ1000 airboxes are selling for between $130 and $200 on eBay, everyone took them off in the day and threw them away, now people realize why they need them.
1978 KZ1000A2 Wiseco 1075 kit
1977 KZ650B1
1973 Triumph Tiger TR7V
1968 BSA Victor Special 441
2015 Triumph Thunderbird LT
1980 Suzuki SP400
Old enough to know better, still too young to care
Please Log in or Create an account to join the conversation.
- rrsmsw9999
- Topic Author
- Offline
- User
- Posts: 778
- Thank you received: 67
1980 KZ 1000E2
Crashed 6/2016
1980 KZ550A
Sold 3/2016
Please Log in or Create an account to join the conversation.
- TexasKZ
- Offline
- Platinum Member
- Posts: 7576
- Thank you received: 2237
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
Please Log in or Create an account to join the conversation.
- Bowman
- Offline
- User
- Posts: 284
- Thank you received: 36
Most everything I read here says that pods are nothing but grief. So how come K&N and Emgo and others sell (millions?) of these things? Presumably at least some are sold to riders who are not expert tuners.
Say you were me with a 76 KZ750 Twin. I'm as likely to find a stock exhaust system as I am to find a unicorn. So one side of the intake/exhaust equation is already broken. Maybe whatever aftermarket or custom bent exhaust I can find will work with the stock airbiox but why would I expect it would not work as well with pods?
Honda 55 Trail don't ask me what year, 65? (sold)
79 Yamaha XS400 (sold)
76 KZ750B Twin (project)
72 Honda CT70 (project)
Please Log in or Create an account to join the conversation.
- 650ed
- Offline
- User
- Posts: 15344
- Thank you received: 2829
Plenty of pods are sold to folks who do not understand the affect they will have on the bike's performance. The same is true of plenty of aftermarket stuff.
If you don't believe it go ahead and buy a set of pods and install them on those CV carbs on your '76 KZ750. :laugh: :laugh:
Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Please Log in or Create an account to join the conversation.
- redhawk4
- Offline
- User
- Posts: 640
- Thank you received: 64
While noise regulations cause most stock airboxes of the late 70's and up to be somewhat restrictive to airflow, as stated earlier, there is usually some way to improve on this and it should also be remembered that for the restriction to be significant you will need to be at the top end of the demand for air i.e. full throttle and high revs, so unless you are racing your bike or similar how often would this even be an issue?
You also have to consider that the filtration provided by Pods may be inadequate too, I certainly would never use the cheap ones and even K&N does not provide the best filtration compared to a stock paper filter, that's why you don't use them on off road vehicles. The foam filters like the Unifilters do filter well, that's why motocross bikes etc. use them, they can even catch a lot of dirt without becoming restrictive.
Another problem with Pods is you have no "velocity stack" effect, there isn't a passageway that gets the air flow lined up before entering the carbs and this can be diruptive.
I think for most people Pods are a bad solution to a problem they don't have. If you don't have an airbox etc. then they provide an affordable solution to getting your air filtered, but without some really good reason I would never advocate removing a perfectly good air box and filer setup.
While a free flowing exhaust can create the need for bigger jets and improve performance the big difference is that it's effect is a constant. The problem with Pod filters is they introduce variables like cross winds, rain etc. into the mix so it will be hard to get a "one size fits all" situations tune. The exhaust might be better likened to someone making a performance airbox, as opposed to Pods which are a somewhat different concept.
1978 KZ1000A2 Wiseco 1075 kit
1977 KZ650B1
1973 Triumph Tiger TR7V
1968 BSA Victor Special 441
2015 Triumph Thunderbird LT
1980 Suzuki SP400
Old enough to know better, still too young to care
Please Log in or Create an account to join the conversation.
- jdvorchak
- Offline
- User
- Posts: 398
- Thank you received: 50
Later I told a friend about what I had done and he tried it on his CB750 "bobber" and it worked for him too. Now I don't endorse using this method but it did work for me. If you're stuck with having to use PODS maybe it can help you too.
Don't fix it until it's broken.
John
83 KZ550M1
83 KZ1100LTD
Also own:
2010 Harley Ultra Classic Limited, 2008 Harley low rider 71 CB350/sidecar
Please Log in or Create an account to join the conversation.
- jdvorchak
- Offline
- User
- Posts: 398
- Thank you received: 50
Don't fix it until it's broken.
John
83 KZ550M1
83 KZ1100LTD
Also own:
2010 Harley Ultra Classic Limited, 2008 Harley low rider 71 CB350/sidecar
Please Log in or Create an account to join the conversation.
- Rockranch
- Offline
- User
- Posts: 434
- Thank you received: 23
jdvorchak wrote: first of all I am not an expert. Don't claim to be even close. But I had an occasion to help my son who bought a late 70's GS650 and before I could step in had cut the airbox apart to remove the carbs. We had no budget for an eBay air box and so he bought some cheap Pods at the local Kawi dealer. Now these were CV carbs. At the time I knew nothing about CV carbs other than we could not get it to rev past 4500 RPM under any condition even in neutral on the center stand. I thought it sounded way lean and decided to introduce some extra filtering. I used one single layer of those blue paper "shop towels" under the pod. I first cut the shop towel to a rough circular shape and held it over the carb inlet while we installed each pod. Using the pod rubber mounting to hold the new filter so it wouldn't just suck itself into the carb. Surprisingly it worked. I tried different materials, cloth, white paper towels etc but found that a single layer of that blue shop towel seemed to be good enough. Was it optimum? I doubt it. But the bike was totally ride-able with no flat spots and good throttle response. We ended up selling it to a guy a couple of years later. He reported back to me, after several weeks, that the bike ran fine and he was very pleased.
Later I told a friend about what I had done and he tried it on his CB750 "bobber" and it worked for him too. Now I don't endorse using this method but it did work for me. If you're stuck with having to use PODS maybe it can help you too.
(2)-1976 KZ900B-LTD's
1-all stock low mileage...
1 modified
1977 KZ1000 (awaiting resurrection!)
...and an old school Honda CB750 Chopper is next on my bucket list!
Oh...and a Pocket Rocket lol!!!
Please Log in or Create an account to join the conversation.