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Bultaco sherpa 198a revs impossible under load


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As Sherpa325 says you must find out "what is wrong with what" before trying to rectify it.

If you suspect the Dellorto, test OKO. Pay attention to the air filter and how the carb is connected to the air box. I found out this is very important

OKO can be bought here http://www.mid-atlantictrials.com/Bultaco.html

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Edited by carl ekblom
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Tried different PHBL combinations. This is one of the latest

Idle             25

Needle      266K

Needle jet D36

Throttle      60

Main         115

Thought first it was very nice. Strong mid throttle and full throttle

Later found out it was little weak at low throttle.

Perhaps PHBH is more all round. Also more period.

OKO or Mikuni for Bultaco is more all round. Today OKO is my first choice. However OKO may not be permitted for competition everywhere. But flat slide is period


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