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mmm, well Jonno my dyno guy did warn me the 38/38 was too large for the ea81. More relevant was the new owners comments on the project of mine. He graciously rang me upon receiving the 38/38 and air filter unit from his ebay purchase. I asked him what its going on and he told me a Datsun 1200. But i...

Haven't got got that ratio table. Will look into it. Thanks

got ya Jonno, richer easy to get richer under load. The guy from Honduras Jeszek told me his ea82 has 162 as his main jet secondary which is a lot richer than my 145 currently. Me thinks there is room for a 155. I have 150, 155 and 160 available to use. Started up the cold engine this morning. Has n...

Doug,
Will an engine be richer or leaner under load? that way I can tune it a little for that.

When I recoed the engine early this year the first carb was a new 38/38 synchronic. It did prove too big. My dyno man (with the 38 ) had trouble tuning it to run good ie not hiccups on slow bends etc. Economy wasn't good IMO at 20-23 mpg light foot.(hand) The 32/36 was sort after and I bought a good...

Even if this device gets the jetting in the ball park. Think a quick dyno and assessment would get a result i.e. "yes you can go one up or one down on the mains etc. " to satisfy that under load criteria.

looks like glass. for ea series you need to order the 14mm one.

I've got this topic on USMB.

A ea82 owner has on his secondary the same jets as me but 162 on the main. Same air and idle jets. So think I can go larger with that as see how it goes.

So Tambox, you mean under load it will be different. how much different I wonder?

I think, as a guess, the primary jetting can be adjusted better than anything apart from a dyno but I have reservations with the secondary circuit.

One can go by others secondary jetting and go from there?

My VW trike mates are using it on their twin carbie set ups 1916cc with great success.

you dont read it whilst riding Greg. Mainly stationary. I could leave it on and use the mirror extension and get Debbie to ride it and me look at it from the passenger seat. No, usually it isn't for that purpose. I suppose a usb camera with extension lead would be ideal. memories form the SPFI days ...

Prior to today I'd tuned the mixture screw by er. You know, turn it in till it splutters a bit then half a turn out. That was. But in reality that adjustment was for a jet too small. Adjusting the mixture with a jet too small is only part of the picture. This tool opens the picture far wider. By kno...

When I got this second hand but very good condition carbie I ordered the top and bottom gasket. I didn't damage the top one on this exercise. The float had been previously set correctly (38mm) as it had come off an ea82 anyway. All up from the time I sat down at the rear of the trike to the end of t...

arhhh, Greg, you read my mind. I thought of it but I'm going away for 3 days and time ran out.

I cant see it being any diferent but you never know.

When I tackle the last of the adjustments eg the secondary main jet (larger) I'll swap plugs and see if all are the same.

Hi Jules, Ebay $104 free delivery. all are around that mark. Got mine from SA I think. I used your jet sizes as well as several others. Did a lot of reading over the last few weeks. Also read up on jets for similar sized engines like the BMW 2002 Escorts etc etc. Just to get an idea. We know that ch...

Today I got in the mail a box of jets from the USA and a colortune unit. My recoed ea81 has done about 6000 kms since total rebuild with 9.5:1 CR, a SPFI manifold (likely about double volume of stock - 6mm larger diameter) and 15/55 cam Jets in my 32/36 carb were Primary- main 130,idle50,air 165 Sec...

Thanks SambOZ As you can see, how does one describe a classic top example of a vehicle 25 years old? The dear lady wanted to pay me for my time for advertising it. He husband is now in aged care so I refused. Today I checked our mail. A card of thankyou was sent by the lady and inside it was a gift ...

thankyou

unit is sold

I am the seller. I have 9.5:1 compression ratio, reco engine and SPFI larger manifold. I had it dynode twice. The first time to seek what jets we needed, the second time to tune fully. It still had flat spots and bogged down a little around slow bends. I've since put a 32/36 on it and it performs be...