Zr7 Dynojet Stage 1 query

Logo

Zr7 Dynojet Stage 1 query

This is a discussion on Zr7 Dynojet Stage 1 query within the ZR-7 Performance Upgrades forums, part of the Kawasaki ZR-7 category; Hi all. My Zr7 has the following modifications. Short end can K&n pod filters Previous owner installed a dynojet stage 1 kit. It was mentioned ...

Results 1 to 5 of 5
  1. #1
    Newbie Plumpton's Avatar
    Join Date
    Jun 2019
    Posts
    14

    Zr7 Dynojet Stage 1 query

    Hi all.

    My Zr7 has the following modifications.

    Short end can
    K&n pod filters

    Previous owner installed a dynojet stage 1 kit. It was mentioned the engine was running a bit rich and having ridden it for a while I agreed. The engine bogs down slightly when accelerating hard from 3000 rpm before running as expected up the Rev band.

    Tonight I had a look at the current setup. The needles were on the 5th slot from the end. The dynojet instructions suggest the 3rd slot from the end so thatís what I set the needles back to. The 2 middle carbs had the small pair of washers to raise the needles slightly.

    Iíve ridden it with the new setup and itís running even worse. Really bogs down and struggles to hold revs at 3/4000. Obviously I need to put things back as they were.

    I did check the plugs before changing things. The plugs were not sooty but a darker brown so it did look a bit rich.

    I assumed Iíd make things better but it feels like itís running even richer now.

    Thoughts?

  2. #2
    Obo
    Obo is offline
    Supreme Being Obo's Avatar
    Join Date
    Jan 2013
    Location
    Atlantic Coast, Canada
    Posts
    5,052
    Thanked
    1041 times
    As far as I know the jet kits are designed for the stock air box and not for pod filters.
    Although a carb is a carb and a jet kit is a jet kit, I know my bike runs like crap when I remove the air filter as it doesn't have the proper back pressure. It bogs out when the throttle is used.
    I think the extra washers were for the slight difference in the intake runner lengths for the outer carbs being slightly longer than the two inner carbs.
    As your bike has pod filters on it I can't really be of any more guidance, sorry.
    2004 Kawasaki ZR-7S
    complete with extra "stuff"

    This communication may be unlawfully collected and stored by the National Security Agency (NSA) in secret. The parties to this email/message/posting do not consent to the retrieving or storing of this communication and any related metadata, as well as printing, copying, re-transmitting, disseminating, or otherwise using it. If you believe you have received this communication in error, please delete it immediately.

  3. #3
    Supreme Being shakennstirred's Avatar
    Join Date
    Apr 2013
    Location
    Nottingham(UK)
    Posts
    1,381
    Thanked
    313 times
    They never run right with pod filters.
    Also i spoke to Dynojet when i got my kit and they said set the needles all the same, IE same groove and no extra spaces on the inner 2 carbs.
    with a K&N in a modded air box the bike runs great.
    The light at the end of the tunnel has been turned off until further notice
    https://www.youtube.com/channel/UCmR...OXdKGl4KlQnU3w
    Kawasaki ZR7

    K&N,Dynojet, +4 ignition advancer,Brisk racing plugs,Dyna coils,taylor leads,17T front sprocket,Nitron shock,hyperpro fork springs,preload adjusters, GPR Furore Exhaust

  4. Remove Advertisements
    RiderForums.com
    Advertisements

  5. #4
    Newbie Plumpton's Avatar
    Join Date
    Jun 2019
    Posts
    14
    Thanks for your replies. So the response you got was to not bother with the small washers at all? Kit instructions say to fit two above the e-clip on each of the carbs.

  6. #5
    Supreme Being shakennstirred's Avatar
    Join Date
    Apr 2013
    Location
    Nottingham(UK)
    Posts
    1,381
    Thanked
    313 times
    yes fit them above the clip as they stop the needle moving. just don't add any below the 2 middle ones to raise the needles
    The light at the end of the tunnel has been turned off until further notice
    https://www.youtube.com/channel/UCmR...OXdKGl4KlQnU3w
    Kawasaki ZR7

    K&N,Dynojet, +4 ignition advancer,Brisk racing plugs,Dyna coils,taylor leads,17T front sprocket,Nitron shock,hyperpro fork springs,preload adjusters, GPR Furore Exhaust

Remove Ads

Sponsored Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts