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Post by jackmisanthrope on Apr 20, 2024 17:32:52 GMT -5
First start on the Malossi. Sprayed it with a little starting fluid before I put the shrouds back on. It's cold and only getting colder in Ohio today. I'll probably put some plastic back on and call it a day. I upped my main to 100 and my idle to 34, hopefully it's a little warmer after work tomorrow and I can take for a couple rips to get some heat cycles on it and see where I need to go on my jetting. youtube.com/shorts/2mEFRW_hpn8?si=kVSWqpZRZzdQTOzw
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Post by jackmisanthrope on Apr 28, 2024 15:50:45 GMT -5
Working on getting this carb dialed in. I feel like I may need to go to a fatter needle. I can ride around town (stop and go) no problem. My problem arises when I try to go a distance at a constant throttle position between 1/4 and 3/4 my temps keep raising to unsafe temps until I drop at or below 1/4 throttle or if I hold it at full throttle. When I go past 3/4 throttle I lose about 500 rpm but I'm pretty sure it's because it's too rich not to lean as my temps will drop and it sounds gurgley also the richer I go the worse it gets. I'm currently running a 110 polini jet with an A27 needle all the way up(clip on botton) and a 34 idle with the air screw just a hair past 2.5 turns out. It's a little rich but is close enough for now. I have the snorkel installed and I'm running premix with oil pump deleted. 1/4 to 3/4 throttle feels nice, but it's improved with every drop of the clip. Can someone tell if it sounds like I'm on the right track before I order a needle kit. I'll probably order it any but would still like to hear any feed back. TIA
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Post by jackmisanthrope on Apr 28, 2024 18:50:14 GMT -5
Also does anyone know if the Naraku needle set is any good?
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Post by broyager on Apr 28, 2024 19:00:10 GMT -5
I think you may have an air leak somewhere, 110 seems too high.
Zino posted this a while ago
70cc malossi dellorto 17.5 87-92 main yasuni r stock crank medium to hard clutch springs 70cc Athena Basic 19 mm 80-84 main yasuni r stock crank medium to hard clutch springs 70 cc Athena Basic 19 mm 80-84 main tecnigas slient pro stock crank medium clutch springs 70cc Athena Basic 17.5 mm 87-90 main yasuni r stock crank medium to hard clutch springs 70cc Athena Basic stock carb 84 main stock exhaust stock crank stock clutch springs
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Post by aeroxbud on Apr 28, 2024 19:06:10 GMT -5
I've used the Naraku needle jet kit. Was quite happy with it.
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Post by Zino on Apr 28, 2024 19:11:50 GMT -5
Your main jet sounds fat if your temps drop at 3/4 throttle . Try this to see if you are fat on the main with scooter warmed up Go wide open for a 1/4 miles Then back off throttle a 1/8 to 1/4 (this will momentarily make you richer ) 3 things will happen Rpms raise a few 100 rpms You are Lean on the main drop a jet Rpms drop slowly This is close to dead on for wide open jetting Rpms drop fast and it gets gurgly sluggish you are rich on the main go leaner on the jet
What temps are you seeing at part throttle and wide open ?
The A27 needle was perfect for me for dialing in mid throttle.
I run around a 90-95 main with the 17.5 dellorto with stock air box snorkel out
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Post by jackmisanthrope on Apr 28, 2024 19:25:20 GMT -5
That had crossed my mind but the only indicator of an air leak is my jetting being higher. I replaced the CVT side seal and it is good I checked it. The stator side seal looks good no oil seepage. I don't have any oil seeping any where I've blasted it with a whole can of starting fluid. It runs good it idles good I can pull the throttle wide open and cruise for a couple of miles without temps creeping too high it's only when trying to cruise for long period between 1/4 and 3/4 throttle. I will admit I haven't done a leak down test but I haven't seen anything that would make me think I need to but I guess at this point I probably should. Be way easier if it wasn't a flange mounted carb
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Post by jackmisanthrope on Apr 28, 2024 19:45:15 GMT -5
Try this to see if you are fat on the main with scooter warmed up Go wide open for a 1/4 miles Then back off throttle a 1/8 to 1/4 (this will momentarily make you richer ) 3 things will happen Rpms raise a few 100 rpms You are Lean on the main drop a jet Rpms drop slowly This is close to dead on for wide open jetting Rpms drop fast and it gets gurgly sluggish you are rich on the main go leaner on the jet
I've tried this all the way up to a 118 main. The higher I go the worse the rpm drop. At 3/4 I'm cruising at about 10500 rpms and when I go to full throttle I drop to 9500-9800. It does the same if I go from full throttle and drop to 3/4, rpms increase 500 to 800 rpms
What temps are you seeing at part throttle and wide open ? I can cruise around all day stop and go and it doesn't get higher than like 280. I can go full throttle for a couple of miles and temps seem to be level off around 310. If I rip for a like a mile anywhere between a little over 1/4 upto 3/4 throttle temps spike to 330 and then I have to back down to below half throttle to get temps to start dropping. If temps don't get above 310 to 320 I can go to full throttle and get the temps to drop back down and level back out around 310 to 315.
The A27 needle was perfect for me for dialing in mid throttle.
I run around a 90-95 main with the 17.5 dellorto with stock air box snorkel out
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Post by jackmisanthrope on Apr 29, 2024 8:51:09 GMT -5
Have the needle kit ordered and I'm going to do a pressure test while I wait for it to get here like I should have done to begin with. I'm gonna be real mad at my past self when an air leak is why I've been chasing my tail but at this point I'd take it. If I end up not needing the needle kit I'll have it anyway lol
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