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Fuel Fuel Delivery


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June 9th, 2017, 12:59 AM   #1
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I Ride: Husaberg FE600 1994, Yamaha FZS1000, Beta Tr33
Dellorto 38 CD1 jet - FE600 -94

My 94 600 is hard to start so I thought I should try and install a CD1 jet inside the pilot since my bike didn't have this.

If you have the CD1 jet inside the pilot jet, how far in should it go? All the way until it seats?

My bike is kickstart only.
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June 9th, 2017, 01:06 AM   #2
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I Ride: Husaberg FE 400 00, Husaberg Fe450 07, Husaberg FC 600 -99, Yamaha FJ1200 -86 Yamaha RD350 -84
Until it seats.
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June 9th, 2017, 01:53 AM   #3
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I Ride: Husaberg FE600 1994, Yamaha FZS1000, Beta Tr33
Thank you.
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June 9th, 2017, 04:05 AM   #4
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I Ride: Husaberg FE600 1994, Yamaha FZS1000, Beta Tr33
OK. So now the bike starts quite easy when it's cold.

1. idle screw out one turn
2. fuel screw out two turns
3. choke on
4. kick it from compression stroke (where the kick lever wont move without decomp) two-three times until I get an exhaust boom.
5. kick it from TDC (exhaust valves closed/intake just about to open) starts on one kick.

When fiddling with the idle and fuel screws after this I got a few exhaust bangs while running, especially if I revved it up and let got of the throttle. When engine is stopped it can't be started again until cold (procedure 1-5 again).

Any ideas?
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June 9th, 2017, 04:12 AM   #5
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I Ride: Husaberg FE 400 00, Husaberg Fe450 07, Husaberg FC 600 -99, Yamaha FJ1200 -86 Yamaha RD350 -84
Try with a smaller PJ (pilotjet)
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June 9th, 2017, 10:57 AM   #6
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I have a 600fe 95 and had a really hard time to start it the first years, weather, temp, cold, warm been through hell.
But I learned the bike over the years.
Now it starts on the third kick, no shoke, no bangs just solid idle.
I recognize the sitution with the bike warm, in woods with a stop and youre stuck for some time trying to start it, I was in that sitution a month a go, impossible to start and i switched sparkplug in the woods and it started at once.
My sparkplugs goes black no mather youre in the woods or the highway, mine is consuming a lot of oil so that is probably my problem but I think I solved it when I dropped my needle one level(force it to go leaner).
I think youre bike is getting to much fuel, how much oil does it consume, is your sparkplug dry and very black?
Do a engine ventilation outside the airintake, the original creates oilmist in the airintake that could make the bike hard to start when its really warm.
Mine had a little space inside the frame (aircanal) were the oil were traped but if you in theory were doing an effective braking a couple of centiliter oil were sucked in carborator and will stop the engine on low revs for sure, must happend to me several times, without me knowing the problem.
dangerously low idle in step downhill also the original engine ventilations fault in my case.
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June 10th, 2017, 06:04 AM   #7
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I Ride: Husaberg FE600 1994, Yamaha FZS1000, Beta Tr33
I don't have any smaller pilot jets around so I'll try to drop the needle an disconnect the oil vent. I really haven't used the bike alot so I don't know about oil consumption. But the compression rings, oil rings, piston and cylinder were all way within spec.
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June 10th, 2017, 07:19 AM   #8
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I don't agree that you must drop the PJ. it could be but at 2 turns out on the PS i think the PJ is too small?

what size is it?

is it a square slide or a round slide?

taffy
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June 10th, 2017, 08:14 AM   #9
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I Ride: Husaber FE 400 E 1998, Suzuki DR 350 SE 1998, XT 350 1992
Check the needle jet , and see if the hole is oval , it was on mine and made the mix unstable it would seem rich all the time. Even in the low rpm and starting . These carbs are very sensitive to the needle 's position
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June 10th, 2017, 09:23 AM   #10
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I Ride: Husaberg FE600 1994, Yamaha FZS1000, Beta Tr33
Pilot is 52, needle K32, emulsion tube AB265, choke jet 45 and main jet 180, round slide no 50.

I'll checkk if the emulsion tube hole is oval.
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cd1, dellorto, fe600, jet



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