probably a better question is how did you set your ignition marks that you strobed it to?10 inch Terror wrote:I used a strobe gun that i purchased from Readspeed. It was spot on, i'm thinking either air leak or wrongly jetted carb. It's all a learning curve and with hindsight i should of let a pro build the engine.eden wrote:how did you set the timing?
How to blow an Imola kit in under 100 miles!
-
- registered user
- Posts: 1447
- Joined: Tue Jun 29, 2010 9:17 pm
- Xbox live gamer tag: No.
- Playstation gamer tag: PLEASE!
- Main scooter: Lambretta LI Imola 185
- Location: Farnborough Hampshire
- Contact:
Yeah mate JB done all the tuning work and the casings are matched to the cylinder ( beautiful job )cezeta wrote:are your casings welded to take those transfers and crank case feed?
I followed Stickys excellent book ( no blame attached or intended ) and used the correct tools and timing disc from Cam Lam. Im 99% sure the timing was spot on, as i've already said, it's a learning curve and i've learn thats it's best to let an expert build a highly tuned engine but we've all been there and done it.
-
- Dealer
- Posts: 752
- Joined: Wed Apr 06, 2011 8:43 am
- Main scooter: LAMBRETTA
- Location: Doncaster
- Contact:
what plug was fitted and squish clearance used/check to see if your pilot jets blocked,check fuel flow do a test,is there correct tap position alignment ,the reed block and manifold are hard to seal and need a good sealant to make air tight
feel free to use this link to contact me on facebook and like it(if u like it)
https://www.facebook.com/pages/Taylor-T ... 8819767924
https://www.facebook.com/pages/Taylor-T ... 8819767924
-
- registered user
- Posts: 1447
- Joined: Tue Jun 29, 2010 9:17 pm
- Xbox live gamer tag: No.
- Playstation gamer tag: PLEASE!
- Main scooter: Lambretta LI Imola 185
- Location: Farnborough Hampshire
- Contact:
Iv'e double checked the timing and it was way way off
! looks like that was the cause of it. I'm waiting on the new piston, then it's off to JB to have the top end built again (properly this time ) Lesson learnt.

-
- registered user
- Posts: 200
- Joined: Wed Jan 07, 2009 1:13 pm
- Main scooter: Li150Special RT195
- Location: Ashford, kent
- Contact:
i managed to do the same on a mugello kit
the problem turned out to be a dodgy inlet manifold which wasnt seating properly on the inlet port, causing an air leak...
the problem turned out to be a dodgy inlet manifold which wasnt seating properly on the inlet port, causing an air leak...
Li150 S2 1959. Li150 Special 1964. GP125 1970. Jet 200 Performer 1981. 1967 Sx150. 1959 Li150 S1. 1968 li125 Series 4