willysmjeeps.com

Test 3

Hi this is Aris once more, now with a new registration as 'arisLgr', because my previous registration 'arisL' was not going well in the forum.

Way back in 1973 my M38 came with a Holley that I promptly changed to a Delorto and only recently I've switched to the YS.
The jeep is ‘commissioned’ on a Greek island and driven a lot by the whole family during the summer. We all love it except my wife who keeps calling me to rescue her, stranded somewhere unable to restart it. I always manage to restart it, but frankly never knowing why, till your revealing posts about the vacuum operated primer!

More so, thanks to you I now know that I have the YS637S, so here are more confirming pics:





Now that I have it apart, please advise me also on the following finds:

1. Metering Rod number 75595S, is it OK?
2. Metering Rod Jet number 120 157, OK?
3. The float was set at 0.205 (13/64) inch, instead of 1/4, could the high level make starting also difficult?
4. For easier starts after storage, I have an electric fuel pump, what is the max pressure the YS637S can take?

Thanks ahead,
Aris

Oooppps, wrong signature, here corrected

1. Metering Rod number 75595S, is it OK?
2. Metering Rod Jet number 120 157, OK?
3. The float was set at 0.205 (13/64) inch, instead of 1/4, could the high level make starting also difficult?
4. For easier starts after storage, I have an electric fuel pump, what is the max pressure the YS637S can take?

The answers to these questions are all in the technical manuals and parts list.

1 -

2 -

3 - Your float setting is not high. It is low at 13/64". A 1/4" setting equals 16/64 ".

4 -