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GT186 Jetting Advice Needed

Posted:
Wed Jan 16, 2019 8:07 pm
by Bilko
Is anyone running a Dellorto 26mm on a GT186 with a 60X110 crank and a BGM Clubman?
I'm needing jetting advice please.
Re: GT186 Jetting Advice Needed

Posted:
Wed Jan 16, 2019 8:56 pm
by Solid Air
Delly PHBH?
Re: GT186 Jetting Advice Needed

Posted:
Wed Jan 16, 2019 10:19 pm
by Bilko
Yes, sorry. I'll fix my post.
Re: GT186 Jetting Advice Needed

Posted:
Wed Jan 16, 2019 11:05 pm
by Cgt75b
Re: GT186 Jetting Advice Needed

Posted:
Wed Jan 16, 2019 11:08 pm
by Solid Air
I think I started with a 26mm on my GT then went onto 30mm followed by Keihin but need to double check, do have a 60/110 and V4 BGM though.
What do you need to know Bilko? I'll ask my mate to pull up some old dyno charts too check the info on them if you want.
Re: GT186 Jetting Advice Needed

Posted:
Wed Jan 16, 2019 11:18 pm
by Bilko
Solid Air wrote:I think I started with a 26mm on my GT then went onto 30mm followed by Keihin but need to double check, do have a 60/110 and V4 BGM though.
What do you need to know Bilko? I'll ask my mate to pull up some old dyno charts too check the info on them if you want.
Just a close-ish jetting for my set up. I'm not really sure what to start with.
Cgt75b wrote:http://www.lambretta-images.com/archive/GTindex.php
IThey don't have the jetting I'm looking for.
Re: GT186 Jetting Advice Needed

Posted:
Thu Jan 17, 2019 12:14 am
by Solid Air
I can't remember accurately from memory so I'll give him a call tomorrow and get back to you.
Re: GT186 Jetting Advice Needed

Posted:
Thu Jan 17, 2019 12:33 am
by Bilko
Great, thank you.
Re: GT186 Jetting Advice Needed

Posted:
Thu Jan 17, 2019 8:13 pm
by Solid Air
Here you go Bilko
Main 127.5
Pilot 50
Needle N68B
Clip 2nd from top
15% full retard using BGM stator and Agusto 6000
Hope that gets you started
Mark
Re: GT186 Jetting Advice Needed

Posted:
Thu Jan 17, 2019 9:40 pm
by Bilko
Thanks, appreciate your help. Do you mind me asking about float valve and atomiser? Not sure what needle that is, Google says PWK?
I laughed. Never heard that before. Thank you!
Re: GT186 Jetting Advice Needed

Posted:
Fri Jan 18, 2019 12:26 am
by Solid Air
No problem and yes you're right about the needle oops
Haven't got that carb anymore but X7 needle and 300 float valve rings a bell but I couldn't be 100% certain.
The Revolution Starts at Closing Time, one of my favourite albums from the mid 80s. A bit punky in places and with a bit of a fun Madness feel - if you like that sort of thing

Re: GT186 Jetting Advice Needed

Posted:
Fri Jan 18, 2019 11:19 am
by Bilko
Thanks.
Yes. I like it too. Added to my playlist.