Pilot jet sizing?

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26 May 2016 06:52 #728628 by ajbonert
Replied by ajbonert on topic Pilot jet sizing?
Yes the bike ran great but like I said earlier the vent hoses were plugged and the floats were really low so I think the previous owner ducked with float level and drilled the pilot huge to account for the vent hoses being plugged. The needle is not adjustable and is original so are coils and I just replaced plugs tried the old plugs the ensure the new ones weren't faulty I know timing, valves, and spark are all fine it's all fuel related right now the wires are new and yes the small section of the pilot is a 63 bit which I know is big I ordered new pilots this morning but I'm still trying to get it to run today to make sure everything else is fine

82 kz550 bobber

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26 May 2016 07:30 #728633 by rrsmsw9999
Replied by rrsmsw9999 on topic Pilot jet sizing?
I wouldn't run it with the oversize pilot jets. get the new jets and start again. carbon build up can break a ring or pistion in short order and you are dumping fuel in. My 0.02$ R

1980 KZ 1000E2
Crashed 6/2016

1980 KZ550A
Sold 3/2016

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  • SWest
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  • 10 22 2014
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26 May 2016 07:35 #728634 by SWest
Replied by SWest on topic Pilot jet sizing?
Worse than that. You'll "wash out the rings" and they'll never seat again. :dry:
Steve

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26 May 2016 07:44 #728638 by ajbonert
Replied by ajbonert on topic Pilot jet sizing?
I guess I'll have to wait for the new jets I hope that is all I need everything else is done everything is adjusted just getting excited to ride I guess

82 kz550 bobber

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26 May 2016 08:02 #728640 by ajbonert
Replied by ajbonert on topic Pilot jet sizing?
What do you think of it so far

82 kz550 bobber
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  • SWest
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  • 10 22 2014
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26 May 2016 08:12 #728642 by SWest

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26 May 2016 08:17 #728645 by ajbonert
Replied by ajbonert on topic Pilot jet sizing?
I'm in Iowa don't really have to worry about that just something I can take out on sunny days. I have fourwheelers side by side and two cars I can have fun in the rain with usually I stick to building motors and rear ends in mustangs and missed my two crotch rockets so I decided to buy a cheap bike to make it just how I want it have a 26 car garage so plenty of space lol

82 kz550 bobber

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26 May 2016 08:21 #728648 by rrsmsw9999
Replied by rrsmsw9999 on topic Pilot jet sizing?
Not my style but I can see the effort. God job! R

1980 KZ 1000E2
Crashed 6/2016

1980 KZ550A
Sold 3/2016

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26 May 2016 08:23 #728649 by ajbonert
Replied by ajbonert on topic Pilot jet sizing?
Thank you! Have wayy to much time invested in this now and have it all done including the bike for less then 700

82 kz550 bobber

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26 May 2016 08:38 #728651 by loudhvx
Replied by loudhvx on topic Pilot jet sizing?
Do you have a link to the source for the pilots?
I've seen some listings for TK pilots, but they didn't look right. Sometimes they want to sell you Keihin pilots as TK pilots.

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26 May 2016 08:40 #728653 by ajbonert
Replied by ajbonert on topic Pilot jet sizing?
I ordered 37 pilots from jetsrus.com for tk carb

82 kz550 bobber

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26 May 2016 09:34 #728659 by loudhvx
Replied by loudhvx on topic Pilot jet sizing?
jetsrus.com/a_jets_by_carburetor_type/jets_teikei_slow_3U.html

I see the description and photo don't exactly match the stock pilots, but hopefully they will still work.
The head won't extend as far into the fuel, so that is one thing to make sure... fuel level is high enough to submerge the head.
The main thing, though, is that the emulsifier tube is the right length, and seals against the seat, so there is no leaking there. You might notice the stock pilot threads in easy, then slightly tighter, before it bottoms out. That portion where it's slightly tighter is when the tip of the jet is sealing inside the carb body. If the new one has that same feel, and is basically in the same depth, it'll probably be good.

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