My Dellorto setup - Please comment

I had a couple issues with my 01 FE501e this week-end, mostly stalling at low speed when negotiating turns in the sand or riding on rocks. Also I could not restart it on the button, but one kick was enough 95% of the time.

It is equipped with a Dellorto PHM40 which came from the FX470 that now belongs to Json (thanks to Berger for the opportunity).

The carburetor is in good shape, except for some deposit at the bottom of the float bowl -- right now the part is partly filled with carb cleaner to dissolve most of this deposit.

I cleaned up the carb with carb cleaner and now it is drying.

Here are the readings:

Throttle slide #40, K35 on C2 (from top), MJ 180, PJ 33, start jet 45, 266DR and the float arms are parallel to the top but only at 15mm.

Considering the fact that I ride around 2000ft most of the time, I think this is way too lean and could explain my problems.

What do you think?

The stabilizer washer is also very tight and seems to be very hard to remove, if you can tell me what the best way to remove is so that I can clean and maybe replace the PJ, that would be great.

Also I realized that the vent hose on the left side of the bike had been pinched all along after I zip tied it too tightly to the frame. Could this be part of the problem?

Last question: what is that that slide cutaway that you guys talk about in Taffy's doc?

Thanks for your help, guy, I am sure I am very close to fixing my little issues here.

I am thinking about doing the following (in order)

1-Increase the Main to 190 and increase the Pilot to maybe 45
2-Getting the 45 slide
3-Other upgrades: DR270, lower clip to #3

Taffy said:

that could be all your problems! look mate, did bobzilla report these bitchin problems?

i thought not!

there's nothing wrong with your carb first of all.

Click to expand...

This is not the original carb, I bought this one from Berger (it was on a FX 470).

The original carb was obviously wrecked after more than 10,000 miles, and it has now been retired and is just there for parts. Also the hose was just pinched for the last ride, which was fine except for the low speed stalling issue so I guess it may be a factor but I am not 100% sure.

Even if 45 would be overkill, these jets are obviously too lean for my altitude and weather. 180 / 33 will become 190 / 35 and I will see from there.

Do you suggest I get the 45 slide?

But I really need to know how to remove the stabilizer washer, so I can eventually change the idle jet.

Also should I keep the float arms at 15mm or increase to 18mm?

Finally where do you suggest I buy a jetting kit at? And the slide?

Thanks

Thanks, Dale. What altitude do you ride at?

Also where should I get the jetting kit?

Thanks again!

I took the idle screw out and forgot to count how many turns out...

Dale, or anybody with a Dellorto-equipped 501, could you tell me how many turns out on the idle screw?

Thanks!

Thanks. Do you know for the idle screw?

Thanks, Taffy, I will remember your wise advice.