I would replace the fuel filter and check/clean the small gauze filter in the carby petrol line.
In my case, I had to put a carby kit through and spend a fair bit of time tuning and then adjusting the auto choke, fuel mixture, etc.
Check the threads I started. It may be some help to you.
BTW, mine is the original Nikki carby?! I'm guessing yours the same?!!!
Also, taslucas made a really good point. It's easy to misdiagnose spark/coil problems as fuel problems unless you are professional.
AFAIK, you can check if the fuel pump is faulty or not by opening it up from the rubber hose near the return line, and then attach it to a bottle, then turn the ignition on and see if it guzzles out continuously without any issues.
You can also buy a dirt cheap fuel/vacuum pressure tester from ebay and check the fuel pressure as well.
I bought this one few weeks ago to help with my carby/fuel issue.
http://www.ebay.com.au/sch/m.html?_o...at=0&_from=R40
My guess is it's a carby issue, but I might be wrong. I'm bit biased since I had quite a few issues with my RB30 Nikki carby.
I had help from George( Alitis007 ). Send him a message. He might be able to give you some good tips.
Here are the threads I started,
http://www.nissanpatrol.com.au/forum...carby-required!
http://www.nissanpatrol.com.au/forum...-manual-needed
http://www.nissanpatrol.com.au/forum...to-choke-issue
http://www.nissanpatrol.com.au/forum...ebuilding-help!!!
http://www.nissanpatrol.com.au/forum...rburetor-issue
http://www.nissanpatrol.com.au/forum...rburetor-issue





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