Search found 153 matches
- Sat Mar 09, 2019 10:06 pm
- Forum: Lambretta Tech
- Topic: Mag flange
- Replies: 38
- Views: 14536
Re: Mag flange
Got the Got the Rebore done and cylinder head opened out ,also the spark plug hole machined so the sparks where it's meant to be. It will pull 4th now but still not right. Fannying about with jetex carbs now. Also stator plate readings were wrong so a new one ordered .Not at the should have bought ...
- Sat Mar 09, 2019 9:44 pm
- Forum: Lambretta Tech
- Topic: Mag flange
- Replies: 38
- Views: 14536
Re: Mag flange
Got the
- Wed Feb 06, 2019 6:46 am
- Forum: Lambretta Tech
- Topic: Mag flange
- Replies: 38
- Views: 14536
Re: Mag flange
I'll keep that in mind Ross cheers.rosscla wrote:Howie, Grog had an Li 125 gearbox - might be worth asking if he still has it?
- Wed Feb 06, 2019 6:45 am
- Forum: Lambretta Tech
- Topic: Mag flange
- Replies: 38
- Views: 14536
Re: Mag flange
Will do cheers.Adam_Winstone wrote:A very simple iron 175 with 5.2 top ratio should be able to do that with ease.
Let us know how you're getting on and we may be able to help with setup so that you more than realise what you're looking to achieve.
All the best.
Adam
- Sun Feb 03, 2019 5:06 pm
- Forum: Lambretta Tech
- Topic: Mag flange
- Replies: 38
- Views: 14536
Re: Mag flange
^... ideal. One thing to watch out for is the compression ratio that you end up running (aim for approx. 8:1 geometric, with squish volume considered), regardless of whether you have your 150 head reprofiled or buy a 175 head already done (some off the 175 heads are too high, others too low). Also,...
- Sun Feb 03, 2019 2:56 pm
- Forum: Lambretta Tech
- Topic: Mag flange
- Replies: 38
- Views: 14536
Re: Mag flange
FYI - Your easiest ways of resolving this so that it works as it should, in whichever order may suit your pocket best (depending on what is available), are: a) Fit a different gearbox with lower ratio. There are lots of gearboxes that give 5.7 in 4th with the original 15/46 sprockets and 80 link ch...
- Sun Feb 03, 2019 1:50 pm
- Forum: Lambretta Tech
- Topic: Mag flange
- Replies: 38
- Views: 14536
Re: Mag flange
^... don't worry, that is a VERY common mistake to make. As power from standard motors went up, so did the rev range that they operate at, with the dear ratios being lowered (higher number) to suit: LI125 = 5.7, GP125 = 6.1 LI150 = 5.2, GP150 = 5.7 TV200 = 4.4, SX200 = 4.8, GP200 = 5.2 ... which cl...
- Sun Feb 03, 2019 12:38 pm
- Forum: Lambretta Tech
- Topic: Mag flange
- Replies: 38
- Views: 14536
Re: Mag flange
No, as Holty immediately stated, this will not be the issue with not pulling 4th gear. If yours has the original li150 4th gear ratio of 5.2:1 then that represents the same 4th gear ratio that the GP200 runs. Q: Is your GP150 top end putting out the same power spread as the GP200..... A: No. As suc...
- Sun Feb 03, 2019 12:32 pm
- Forum: Lambretta Tech
- Topic: Mag flange
- Replies: 38
- Views: 14536
Re: Mag flange
Sorted when I took the pic. Was one of the nuts ,New gasket with silicon.hendy wrote:Where?
- Sat Feb 02, 2019 2:17 pm
- Forum: Lambretta Tech
- Topic: Mag flange
- Replies: 38
- Views: 14536
Re: Mag flange
Fun in the sun. Air leak found.