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What to use to poke out/clear a Mikuni pilot jet ? 24 Jun 2022 15:31 #869307

  • Mikaw
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If the pilot jet is plugged there’s a great chance the rest of the carb is dirty. Nothing bad can come of a quality rebuild. 
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
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What to use to poke out/clear a Mikuni pilot jet ? 24 Jun 2022 16:23 #869309

  • Scirocco
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I would try to cook the clogged jets in coffee machine descaler or vinegear.

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Last edit: by Scirocco.

What to use to poke out/clear a Mikuni pilot jet ? 24 Jun 2022 17:20 #869311

  • Nessism
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I suggest soaking the jets in carb and choke cleaner spray with a top on it over night. A single carb for two cylinders should have a larger pilot jet. Could be the varnish makes it seem smaller. The wire brush strand is smaller than an E string but isn't very strong. 
Steve

This is what I do.  Shame on anyone trying to clean a set of carbs if you don't already have some carb spray.    
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What to use to poke out/clear a Mikuni pilot jet ? 25 Jun 2022 15:41 #869347

  • JR
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Update and ending.
Drove the hour over to friends place this morning and to make a long story short he did indeed have fuel delivery issues which were caused by combination of dodgy petcock and sticky float and which were pretty much solved by the time I got there. Carb cleaner sprayed easily through jets and orifaces. No need to remove pilot so did not learn what size.  Bike fired up. Sounded good. Left after an hour he still had valves to adjust and fluids (oil, transmission & primary chain) to change etc.
Reminded me why I did not buy that 2nd hand Triumph 500 back in 79 

thanks all
 
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Last edit: by JR.

What to use to poke out/clear a Mikuni pilot jet ? 25 Jun 2022 15:46 #869348

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HE SAID THE HIGH E STRING IS TOO LARGE. 

What are you yelling at ?  We're all trying to help here.   You can get E strings down to .006,which is .1524 mm.
 
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What to use to poke out/clear a Mikuni pilot jet ? 25 Jun 2022 15:55 #869352

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HE SAID THE HIGH E STRING IS TOO LARGE. 

What are you yelling at ?  We're all trying to help here.   You can get E strings down to .006,which is .1524 mm.

Who's yelling? 

 

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