79 kz650 airbox replacement

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05 May 2009 17:26 #288214 by glennpl
79 kz650 airbox replacement was created by glennpl
Recently rec'd 79 KZ650C and in the process of cleaning it up. I want to replace the air box with pod filters. Currently running with Sankei 2055 4 into 2 exhaust. What recommendations are there for rejetting. Also wiring is a mess. Does anyone have replacement wiring diagram to replace the wire harness. Harness I now have is a wreck, a lot of patch work. I'm not even sure it is for this bike. Any help would be appreciated since riding season is here.

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05 May 2009 17:52 #288217 by 650ed
Replied by 650ed on topic 79 kz650 airbox replacement
Why?

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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  • spudbudy
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05 May 2009 18:10 #288220 by spudbudy
Replied by spudbudy on topic 79 kz650 airbox replacement
Put the stock airbox back on you'll be so much happier with it. PODS = headache take it from someone who learned the hard way

78 KZ 650B2. Vetter faring, Dyna S, Dyna Green coils, WG coil mod,AGM Battery, VM26SS carbs, Pilot jet 15, mains 110, jet clip #2 shimmed position, Modified stock air box, stock air filter, Kerker 4 into 1 with stock baffle. currently 48,785 miles. :-) and climbing daily.:-)

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05 May 2009 19:33 #288256 by 650ed
Replied by 650ed on topic 79 kz650 airbox replacement
Here''s the wiring diagram for the KZ650C3. Just put your cursor on th elower right corner of drawing (on the number 273) and click for large format. Ed

Wiring Diagram

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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07 May 2009 16:36 #288826 by glennpl
Replied by glennpl on topic 79 kz650 airbox replacement
What types of headache. Just curious

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07 May 2009 16:57 #288839 by Patton
Replied by Patton on topic 79 kz650 airbox replacement
glennpl wrote:

What types of headache. Just curious


Offhand, am thinking of issues related to:
Tuning;
Water ingestion;
Wind currents;
Lost side covers;
Stressed carb holders;
Increased maintenance.

Good Luck! :)

1973 Z1
KZ900 LTD

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07 May 2009 19:46 #288913 by Bluemeanie
Replied by Bluemeanie on topic 79 kz650 airbox replacement
glennpl wrote:

What types of headache. Just curious


I know a lot of guys here have pods with no problems but most guys find it a PITA to get proper jetting and as Patton said they are subject to high/low pressure areas which can cause side covers to fly off, side drafts from other vehicles affect performance, water ingestion from rain or just washing bike and puts more strain on the carb holders. The plus side to pods are 5 minute carb removal! Personally I think a stock air box with a K&N filter will flow almost as good as pods. Pods do have a place, when an engine is highly modified (big bore kit, cams, etc)they are necessary for max performance. On a relatively stock motor they will cause a slight drop in bottom end with a slight boost in top end IF jetted properly. They look cool, sound cool but just not for me. ;)

1980 KZ650F1, Bought new out the door for $2,162.98!

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10 May 2009 10:35 #289872 by spudbudy
Replied by spudbudy on topic 79 kz650 airbox replacement
Well I never did get the jetting right always had a bog.
heavy winds made the bike run poorly always
run up along side of a semi truck and you'll see what I mean
yes you can remove your carbs quicker but so what I've done it so many times now with the airbox on that it really doesn't take much more then 5 minutes to take them off just a little harder to put back on.
I've done the pilot jets new main jets tried different needle positions too many times to count. all in all the bike runs best with the stock airbox for me at least.

78 KZ 650B2. Vetter faring, Dyna S, Dyna Green coils, WG coil mod,AGM Battery, VM26SS carbs, Pilot jet 15, mains 110, jet clip #2 shimmed position, Modified stock air box, stock air filter, Kerker 4 into 1 with stock baffle. currently 48,785 miles. :-) and climbing daily.:-)

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