Search found 20 matches
- Sat May 22, 2021 6:45 pm
- Forum: Lambretta Tech
- Topic: gp150 engine
- Replies: 39
- Views: 14086
Re: gp150 engine
"A correctly set OEM points ignition (preferably converted to 12 v) with a 'J' flywheel is likely to be far more reliable" More expensive and more work than just purchasing a lightened flywheel. Plus points not advisable if your run an expansion chamber. Higher reving, faster points wear. ...
- Fri May 21, 2021 11:59 pm
- Forum: Lambretta Tech
- Topic: gp150 engine
- Replies: 39
- Views: 14086
Re: gp150 engine
Marktheskin, Points ignition or electronic? If its electronic, a lightened flywheel gives a surprising improvement with very little changes if any to carburation. Not the mid weight, the light one. If you have points ignition, I'd steer clear of an expansion till you upgrade to electronic. If you up...
- Thu Jul 30, 2020 9:48 pm
- Forum: Lambretta Tech
- Topic: RB200
- Replies: 5
- Views: 1743
Re: RB200
Needle jet is a 389 series. Also, strangely same carb in my stock rb22 with a similar set up but the needle in that is a 5FP17. Clear as mud..
- Thu Jul 30, 2020 9:37 pm
- Forum: Lambretta Tech
- Topic: RB200
- Replies: 5
- Views: 1743
Re: RB200
Not a 35 but maybe helpful:
I run a 32 tmx on my Rb20. Transfers opened up and matched to welded and ported case. Static timing at 17 btdc, B9EGV ngk plug. A.f. rayspeed expansion chamber.
Needle : 6FJ6 highest (richest) position
Needle jet: Q 0
Main : 330
Pilot: 27.5
I run a 32 tmx on my Rb20. Transfers opened up and matched to welded and ported case. Static timing at 17 btdc, B9EGV ngk plug. A.f. rayspeed expansion chamber.
Needle : 6FJ6 highest (richest) position
Needle jet: Q 0
Main : 330
Pilot: 27.5
- Tue Jul 28, 2020 2:58 pm
- Forum: Lambretta Tech
- Topic: RB20 Repair Options?
- Replies: 4
- Views: 1569
RB20 Repair Options?
I have a small block rb20. Stock size bore. I have an issue where the spigot on the cylinder is thin from factory and has warped pinching the piston at bdc. I do not want to just hone the cylinder and replate. I do not want to resleeve and use a smaller piston. I have seen the quattrini 200 does not...
- Thu Dec 26, 2019 2:44 pm
- Forum: Sports Bar
- Topic: What is wrong with people?
- Replies: 13
- Views: 14448
Re: What is wrong with people?
I totally agree. Facebook has killed it. Anyone 27 and under just go to FB for news, entertainment, attention etc. People are lazy and if they feel they can get everything from one service that's what they'll do. The bigger picture of the value of privacy is dead. Sold out for access to websites. Sad
- Tue Aug 13, 2019 2:24 pm
- Forum: Lambretta Tech
- Topic: Exhaust input 4 RB20 Needed
- Replies: 4
- Views: 2314
Re: Exhaust input 4 RB20 Needed
The exhaust timing is between 185 and 188. Sorry I cant be more exact than that.
- Sun Aug 04, 2019 10:16 pm
- Forum: Lambretta Tech
- Topic: Exhaust input 4 RB20 Needed
- Replies: 4
- Views: 2314
Re: Exhaust input 4 RB20 Needed
Or is the answer a variable ignition ?
- Sun Aug 04, 2019 8:50 pm
- Forum: Lambretta Tech
- Topic: Exhaust input 4 RB20 Needed
- Replies: 4
- Views: 2314
Exhaust input 4 RB20 Needed
I have a modified rb20. 32 tm mikuni, 62mm crank, case weld and transfers opened up all the way on the cylinder. I currently have a jl mk4. It's the full race. I'm not a huge fan. Although the power kicks in like a turbo it has very little torque down low. I am looking for an exhaust that will give ...
- Sun Jun 16, 2019 8:45 pm
- Forum: Lambretta Tech
- Topic: Looking 4 Extra long brake cable outer
- Replies: 7
- Views: 2816
Re: Looking 4 Extra long brake cable outer
That's great. I didn't know they made them!