A mile of runway can take you anywhere
John and I had discussed a formation sequence a few weeks ago but he saw we had a nice weather window this week, so we planned to meet and pre brief.
We agreed method of lead and follow… when and what frequency to switch to and what actions to take if anything went a bit odd.
John’s new 360 camera was a great new add on and so we were using this flight as a pre test
Another classic Autumnal weekend with cold and damp mornings.
Saturday was blowing a fair bit across so decided to wait until Sunday.
I had a small maintenance job to do first, so put the heat gun inside the cowl and put the top cowl loosely in position.
This would capture all the warm air inside the cowls and warm the sump, oil and carb as well as heads.
The small repair job took about 5 minutes, I have 2 RPM guages.. one is the original multi MFA unit (green and black display), then other is a newer version but dedicated to JUST RPM. The 2nd (newer) one had been in about 4 years or so, had started to go on and off intermittently.
I had traced it to a bad crimp on a ring connector that was one side of the 1 amp fuse. Undoing the fuse to save pulling the panel forward, gave easy access to allow a new ring connector to be cramped on.
5 minutes had clasped so quickly screwing the top cowl on, pull out (with Bob’s assistabce) and she started on first turn of the blade !
Id organised a group fly out .. not too far .. just Tibenham (literally next door) and Great Oakley
As it was Rememberance day and a memorial service at Tibeham we needed to be on time
For the first time ever i think … the Jab refused to even fire
Not one cough .. just cranked until.the battery eventually went flat .. leaving it to cool between cranks !
Subsequent return a few days later .. batteries recharged and a heater used ro chase away moisture and damp PLUS a small singe squirt of easy start amd BOOM .. into life !
Clive (James) one of our super helpful and friendly club members .. also very experienced in Jabirus .. offered some useful.fine tuning advice
On a Bing carburettor (commonly found on BMW Airhead motorcycles, Rotax engines, and some snowmobiles), the idle mixture screw controls the air-fuel ratio at idle by metering fuel into the idle circuit. • Turning the screw IN (clockwise) restricts fuel flow → leaner mixture. • Turning the screw OUT (counter-clockwise) allows more fuel → richer mixture.To make the mixture richer: Turn the idle mixture screw OUT (counter-clockwise).Standard adjustment procedure (for reference):
1 Warm up the engine fully.
2 Set idle speed slightly high using the throttle stop screw.
3 Turn the mixture screw in until the RPM drops (too lean), then out until peak smooth RPM is reached.
4 Typically, the richest smooth idle is found ¼ to ½ turn out from the peak RPM point (to avoid running too rich and fouling plugs).
5 Reset final idle speed.Note: Some Bing carbs (e.g., Type 53/54 on BMWs) have the mixture screw on the side; others (e.g., Type 64 CV) may have it underneath. The direction is consistent: out = richer.
Jersey Sherwood Ranger 