Quote:
Originally Posted by Old Fox
A smaller jet is THE right solution but getting one is next to impossible. HH don't keep such stuff with them and the thread profile of other makes do not match. So for the time being, putting a wire through the jet to reduce fuel flow is the only viable and available option in and around Leh.
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By far the best solution .. rather than the wire alternative!!
Quote:
Originally Posted by Old Fox
The 'tuning' you are referring to apparently is the air-screw adjustment found on carbs. The air-screw primarily adjusts the idling mixture and has no effect beyond 1/4 throttle operation. And idling is not the real issue with the ZMA at high altitude.
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True!! This 'air-screw-tuning' is of NO help! All the problems still remain..believe me..I tried every possible thing with that turning the screw and nothing helped..
Quote:
Originally Posted by Old Fox
Just removing the air-box cover makes next to nil difference to the air/fuel ratio richness in the ZMA. Even entirely removing the air filter from the intake makes only a small difference. The ZMA engine runs very rich at high altitudes, especially above 14,000ft. And the only way of getting the air/fuel ratio to workable levels is by reducing the fuel flow vis-a-vis a smaller main jet or a wore through the existing jet.
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A small correction here, the removal of the air-filter does help in getting back the power as while climbing Chang-La(17,000 + ft.) I had removed the air-filter and the bike was running absolutely fine with no issues at all. However, on getting back to Leh fitted back the air-filter and put a copper wire in the main-jet!