2 Cylinders not running at idle

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New to XJR
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Joined: Sun Jan 22, 2023 2:08 pm

Hi guys, got a UK XJ600s "Diversion"

It's running really badly at idle. I have heat gunned the cylinders and at idle cylinders 1 and 2 are less than 100C but cylinders 3 and 4 are between 250C and 300C

Essentially, I believe that the pilot jets are clogged on cylinders 1 and 2. I ran the bike on choke and all 4 cylinders picked up to about 300C

Does anyone know if the UK carbs have replaceable pilot jets or are they pressed in? Can they be cleaned or need replacing?

Many thanks guys,

Kindest regards,


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