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Post by 2TDave on Mar 1, 2015 4:59:52 GMT -5
Yesterday after work I hung her from the rafters and went to work pulling her running gear. Lol. Maybe time to think about dating. Nah, I'll stick to scoots for awhile. Anyway, I never got a good leak test on this motor and it's been bothering me. I suspected it was a leak down tester to intake boot connection but I've been having issues tuning the carb so I had to know. Test held 6psi for 10 minutes then slowly went down over an hours time. I'll be looking at it closer today after coffee.
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Post by 190mech on Mar 1, 2015 5:21:36 GMT -5
If it held for 10 minutes,that ought to be good!
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Post by oldgeek on Mar 1, 2015 5:26:13 GMT -5
Yesterday after work I hung her from the rafters and went to work pulling her running gear. Lol. Maybe time to think about dating. Nah, I'll stick to scoots for awhile. Anyway, I never got a good leak test on this motor and it's been bothering me. I suspected it was a leak down tester to intake boot connection but I've been having issues tuning the carb so I had to know. Test held 6psi for 10 minutes then slowly went down over an hours time. I'll be looking at it closer today after coffee. That passes in my book, what carb are you using? I recently had a problem tuning a 19 mm dell clone, I replaced it with a real dell 21mm and problem was solved. I suspect the pilot jet seat is cut too deep on the 19mm clone, but I haven't had time to figure it out. |
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Post by 2TDave on Mar 1, 2015 5:28:36 GMT -5
Thanks John. I'll put it back together and work on the carb tuning.
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Post by 2TDave on Mar 1, 2015 5:34:42 GMT -5
OG this is a new 21 Dell. I've also got some S6 glass reeds in it that I don't have any experience with.
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Post by 190mech on Mar 1, 2015 6:53:30 GMT -5
How is it acting?Ive seen where a bit of jet needle tuning will cure a lot of problems..
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Post by Corrosion on Mar 1, 2015 7:32:20 GMT -5
The 2 Clones I got had weird needle and slide combo's. My 21, had a W-16 & a 60* slide, 82MJ.
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Post by 2TDave on Mar 1, 2015 7:43:32 GMT -5
It's acting rich. It's a real Dellorto. I've got a 90 in now with the stock box on it. Starts and idles great but has a studder at about the throttle position the needle should come into play. I'll make some adjustments and see.
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Post by 2TDave on Mar 1, 2015 8:20:31 GMT -5
Corrosion this 21 has the w16. I'm going to put the needle to the leanest setting and check it. The rain has finally stopped.
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Post by Corrosion on Mar 1, 2015 8:38:58 GMT -5
W-7 seems to be my go too needle with an air box. What slide #. I like a W-7 & 40-45* (a forty modded slightly)
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Post by 2TDave on Mar 1, 2015 8:50:26 GMT -5
That's the setup I have on the 19 in the RX8.
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Post by 2TDave on Mar 1, 2015 8:55:07 GMT -5
Actually the 21 has the same setup also. W7 40. I took a W16 out of the 19 for a W7. I get confused.
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Post by Corrosion on Mar 1, 2015 8:58:13 GMT -5
When in doubt, I go to SA site and check the spec' on the Stage 6 MKII dellroto's. It is always a good place to start. imgur.com/OnqCcvM They will generally run pretty good at there setup. |
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Post by 2TDave on Mar 1, 2015 9:29:03 GMT -5
Thanks!
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Post by 2TDave on Mar 1, 2015 10:41:16 GMT -5
Okay moving in the right direction. 88 main, clip at the top, w7 needle. Seems like it should be lean but I think it needs an 85. There is a marathon being run through my neighborhood so I'm not going to go attract attention with this pipe, no tag or lights. The airbox isn't going to work with this setup so I'll be dialing it in when I get a filter.
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