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Message started by Northwood on 01/16/18 at 09:28:31

Title: Odd carburetor
Post by Northwood on 01/16/18 at 09:28:31

Giving the carburetor an overhaul to check gaskets, rubber membrane, jets and other tuning parts, I find some small deviations from things described on this forum.
24C3 and E4X is written on the body
1. The white plastic spacer is 2 mm thick. It show no signs of being tampered with. No abrasive marks or anything. Looks stock.
Lancer indicate a 5 mm thickness. Is this carburetor specific?
2. Main jet: 130 and pilot jet 47.5
Clymer service book list 3 different carburates and 3 different sets of jets. None of them with a 130/47.5 configuration.
150/50 is suggested as a good starting point.
It seems a bit drastic as theres a long way from 130 to 150.

What to do???

Title: Re: Odd carburetor
Post by Dave on 01/16/18 at 09:37:39

Where on the planet do you live? :-?

Title: Re: Odd carburetor
Post by Northwood on 01/16/18 at 09:39:34

Denmark-like... :)

447F7265747863657E767B64170 wrote:

Where on the planet do you live? :-?

Title: Re: Odd carburetor
Post by Dave on 01/16/18 at 09:46:16

That helps......the fuel that you burn in Denmark likely has very little in common with the fuel we have in the US.

The carb and jetting can be very different globally.

Some carbs have plastic spacers to limit the travel of the slide....some have little electric switches that we believe retard the timing at full throttle, and the jetting numbers can vary.

Title: Re: Odd carburetor
Post by Northwood on 01/16/18 at 09:54:16

So there's no way to set a standard, and the only way to get it right is by trial and error.
Long and tidy :D
Here the most common fuel is 95 octane and I think 5-10 % ethanol added.

Thanks :)

506B6671606C77716A626F70030 wrote:

Title: Re: Odd carburetor
Post by verslagen1 on 01/16/18 at 10:18:38

I believe the 130 is canadian and EU standard notation.
I believe it's due to different units of measurement.

Title: Re: Odd carburetor
Post by Northwood on 01/16/18 at 11:59:15

verslagen do you have a conversion chart?
I cant find anything on Google. Only a conversion chart between Keihin, Dynojet and Mikuni.

4E5D4A4B54595F5D5609380 wrote:

I believe the 130 is canadian and EU standard notation.
I believe it's due to different units of measurement.

Title: Re: Odd carburetor
Post by verslagen1 on 01/16/18 at 12:14:51

No, I just remember this from various conversations.

Title: Re: Odd carburetor
Post by Northwood on 01/16/18 at 13:49:41

Too bad.
The only solution then, is to migrate to the US :D

594A5D5C434E484A411E2F0 wrote:

No, I just remember this from various conversations.

Title: Re: Odd carburetor
Post by Dave on 01/16/18 at 14:06:57

You could just arrange to have the carb jets and fuel imported. ;)

Title: Re: Odd carburetor
Post by jcstokes on 01/16/18 at 15:02:23

Was the bike running ok, before you removed the carburettor?

Title: Re: Odd carburetor
Post by Northwood on 01/16/18 at 15:20:12

Or take a plain when I need refueling...

The bike was running, but not good. The gas was old and the vacuum hose to the pet thingy was leaking. I can't tell which was what.
Right now the bike is torn apart. I snapped an exhaust bolt removing the exhaust to check the cam chain.
Helicoil time... darn!
Cam chain is app. 127.3 mm, so within specs. But might as well replace it while I have my hands inside the guts.

Edit: Lmao, I can't write petcock in two words?! :D :D :D

Title: Re: Odd carburetor
Post by zipidachimp on 01/16/18 at 20:30:05

my 2 canadian bikes both had 52.5/145 jets. not now! 8-)