plastic main jets?

plastic main jets? 03 Mar 2007 15:01 #117044

arobsum Topic Author Offline User Posts: 566 Thank you received: 10	i friend of mine showed me some main jets today...they were plastic!! has anyone ever seen plastic jets? how well do they last? by the way, these jets were 155's.....
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plastic main jets? 03 Mar 2007 15:47 #117055

JR Offline Sustaining Member Posts: 2913 Thank you received: 435	Yep I got plastic ones on mine ! There were there when I bought the bike 4 years ago and all I can say about longevity is so far so good. 1980 kz750E1, Delkevic exhaust
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plastic main jets? 03 Mar 2007 17:12 #117084

arobsum Topic Author Offline User Posts: 566 Thank you received: 10	cool! man, i didn't know what to think when i saw these...i was thinking "what kind of cheap crap is this?"
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plastic main jets? 03 Mar 2007 20:22 #117149

JR Offline Sustaining Member Posts: 2913 Thank you received: 435	They probably are cheap crap but they seem to work ok. 1980 kz750E1, Delkevic exhaust
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plastic main jets? 04 Mar 2007 22:48 #117400

MDawnz1 Offline User Posts: 328 Thank you received: 27	If they are white plastic. They were made by a co. named PRO JET. I have a set in mine. Work just fine. And they cost the same as brass ....... 1974 Z1a, still 903
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plastic main jets? 05 Mar 2007 15:38 #117539

arobsum Topic Author Offline User Posts: 566 Thank you received: 10	they are white plastic. 155's. if the cost is the same, why go plastic?
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plastic main jets? 05 Mar 2007 17:12 #117562

z1kzonly
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Posts: 2867
Thank you received: 519

They been around for over 20 years! I have teflon! They have a smoother bore than brass, not restricted at all with any irregularity's.
I used to bore out brass main jets with a welding tip cleaner.
I have 2 sets 120 and 122.5. Check ebay out, thanks for the idea! I will list them soon.

Livin in "CheektaVegas, NY
Went thru 25 of these in 40 yrs.
I SOLD OUT! THE KAW BARN IS EMPTY.
More room for The Old Girl, Harley 75 FLH Electra Glide,
Old faithful! Points ign. Bendix Orig. carb.
Starts everytime!

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plastic main jets? 05 Mar 2007 19:43 #117599

arobsum Topic Author Offline User Posts: 566 Thank you received: 10	yep, i've known folks that drill them out..etc. they just open the hole up. personally, i never tried this.
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