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OS Ultimate 70 Surpass

Old 02-11-2004, 09:44 AM
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cap10fan
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Default OS Ultimate 70 Surpass

My wife has offered to buy any engine I want for my birthday.

Has anybody bought one of the new Ultimate 70s?

Any feedback would be greatly appreciated.

Thanks!
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Old 02-11-2004, 12:24 PM
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Default RE: OS Ultimate 70 Surpass

I've had an OS Ultimate 70 Surpass on order for 6 months. I'd like to find a place to buy one today!
Victor
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Old 02-11-2004, 02:27 PM
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Default RE: OS Ultimate 70 Surpass

***deleted by poster***

[[[[brain fade warning]]]]

----posted answer in wrong thread on same engine----

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Old 02-11-2004, 04:24 PM
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Default RE: OS Ultimate 70 Surpass

Is there a problem with the regulator being after the needle valve? Would that mean any adjustments to the needle valve would be ineffective? If so, why would OS design an engine this way????

Please forgive if this is a dumb question, I have never had a pumped 4 stroke before.

Thanks Again!
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Old 02-11-2004, 04:40 PM
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Default RE: OS Ultimate 70 Surpass

When I set up a Cline regulator I deliberately place the regulator body at the carb and utilize a remote needle. The regulator needs to be able to read the low pressure pulses at the spray bar so it can respond to the demand more accurately. OS did a good thing. And, the needle valve is just as effective, the regulator only controls when fuel can flow and cannot flow, the needles still control the amount.
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