Ron Moss - Avanti TT3 - Cylinder Kit - Review & Test.....

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
ilikecake66
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Posts: 15
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Mon May 13, 2013 7:49 pm

Kit number 12 up and running
Just taking things easy at the moment but pulls like a train
Rearly smooth ride :D

badal1965
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Posts: 44
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Location: kent
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Tue May 21, 2013 10:45 am

Kit no:3 is coming out of hibernation now my GT is kaput :( I'll be putting in an LTH 7 plate today/tommorow as when i last used it there was a bit of slipping when caning.

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Angry Bloke
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Posts: 279
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Tue May 21, 2013 3:22 pm

Kit No 56 - 150 miles in and feels good - Running carb setting as per Rons suggestions (great Service / Feed back ;) )

Doesn't feel too far out at the bottom / mid range TBH :D
Je fettle - Tu fettle - Il fettle - Nous fettleons - Vous fettlez - Ils fettlent

"Broadsword calling Danny boy ,Broadsword calling Danny boy ,over "

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Andy Pickering
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Main scooter: GP
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Tue Jul 02, 2013 11:04 pm

Well its been a late start to the year on the review test kit due to crazy work schedules and a full engine strip and rebuild (not due to the kit i may add) decided to re crank last month due to worries over the existing crank (SIL/ jap bearing) so Dan provided a lovely jap rod and corrado the upgrade bearing and seal kit and packer to bring the engine up to the required spec, a dodgy stator also played its part in early year frustration (now stripped re wired), the engine was stripped and the SIL crank rushed up to AF where Kempy did a sterling job of removing the SIL rod and fitting the new jap rod while a mate waited, run it in for 500 miles was his only parting shot to Chris Murphy who popped it up there for me, Mickey satnav was entrusted to bolt it all back together as working 7 days a week at the time left with no spare time to get it to the garage for Dan to work his magic on it, a brand new Franspeed avanti race arrived and was fitted and as of 2 weeks ago she was back to life, although only just over 100 miles so far and plodding @ running in speeds (new crank/bearings) the early signs are the franny has made a significant change and the power comes on so much earlier now and revs for longer, a few weeks should see enough miles to really get back to where we was late last year (miles worth) and start getting some info across, still running a 30mm delly but set rich at the mo until the rally season shows a gap for a scooterotica dyno and check up.
Ricspeed, gone but never forgotten RIP my friend #59

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OAP
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Wed Jul 03, 2013 9:02 pm

Just moved this over from another post!


8000 miles on avanti

Postby Twinny » Tue Jul 02, 2013 9:17 pm
loads of rallys in this country and europe the man i sold it to just bought it back for service ,stripped barrel down and changed rings because they were almost at there limit ,every thing else looked good,i took it out before strip down and i can tell you i came back with a big smile on my face :D

Jazzy
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Thu Jul 04, 2013 10:39 pm

beats my 4,500 including two coast to coasts and avignon.
loved the way it eat up the French roads and the mountains in the Ardeche.
78 gps fully loaded with huge paniers :D

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Angry Bloke
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Thu Jul 04, 2013 11:54 pm

Jazzy wrote:beats my 4,500 including two coast to coasts and avignon.
loved the way it eat up the French roads and the mountains in the Ardeche.
78 gps fully loaded with huge paniers :D
That's good :D

What gearbox , carb , exhaust set up are you using :?:

I've just finished running in mine with a 30 PHBH with filter , MB Clubman , Li 150 46/17
Je fettle - Tu fettle - Il fettle - Nous fettleons - Vous fettlez - Ils fettlent

"Broadsword calling Danny boy ,Broadsword calling Danny boy ,over "

Jazzy
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Fri Jul 05, 2013 8:00 pm

running a nk road 4.6 on li 150
30 mm dely, would love to try a 34mm delly or amal

shamrockexpress
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Sat Jul 06, 2013 10:03 am

Anyone else running a 34 mm amal ? with this being pistonported the amal style carb should be ideal not to mention a huge saving over the price of new carbs out there.

paul190
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Main scooter: S2 lambretta Avanti TT3
Location: Boston USA
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Sat Jul 13, 2013 2:44 pm

Kit #69
avati clubman
mikuni 35mm carb: 15 pilot,290 main ,6en11-57 needle 2nd clip
19 front sprocket 46 rear crown
been running this set up in boston MA with great results at sea level.
I went to lambretta jamboree last week in Colorado springs and trucked the Avanti with me.
met with the local lambreta scooter club who told me : 'big carbs don't do well up here ..' well up here turns out to be 6500ft above sea level and it turns out that they were exactly right !
the sea level set up felt like I had a hole on my engine and the carb was full of soup !
after 2 days of messing around with jetting I finally got to a pretty good set up :
6en11 58 needle 1st clip(yep! its a lean one )
280 main
15 pilot
I was able to take on some really good roads - straight ,hilly roads with some long windy bits ,tight s-curves ..with no effort .made some good mountain climbs too up to about 7500ft above sea level. the Avanti pulls really strong up inclines , could do a good deal of it in 3rd gear ,but the tough ones had to take a 2nd gear climb. no strain from the engine at all . did a few plug chops on the straight runs ,nice and fast , and my spark plug was very happy :)
Avanti ran nice and cool all the time i was there .
air is pretty thin up there for us flat landers ! had a hard time adjusting myself let alone the scoot !
so we have a go at the pikes peak mountain run ,its a 14 mile climb up a mountain that starts off at 6500/7000 ft a.s.l and ends up at 14000ft a.s.l!
so I get a really good start up ,Avanti pulling strong , no strain , im in 3rd while I hear other scoots dropping down to 2nd ..going up and up and im thinking 'this is the balls..' I climb to about 7500ft and then CLUNK......my rear hub locks up , I come to a skiddy dead stop. "WTF.did I seize ?' nope ..engine still running .,,I can still rev it. i rock the scoot back and forth , maybe clutch sticking (?) nothing still locked up .so I kill engine and try to push scoot to the side of the trail but i end up just dragging the rear wheel along and by this time im all out if air ..im a sweaty knackered mess panting for breath like im drowning !! luckily the local scoot guys followed in a truck and helped me out . couldn't unlock the hub at that time ..so they trailered me to the top anyway ...which was pretty damn amazing . check out Sebastian loebs drive up this mountain in a tricked out rally car on you tube ; he does it in about 8 mins!
so getting down was harder than going up ..one scooters front disc brake got so hot that the plastic grill covers actually melted ..seriously . a lot of scooters brakes got very hot on the way down . even though i wasn't able to make it up to the top because of the hub issue i am confident that the Avanti would have eaten that mountain road for breakfast ! actually there isn't much it cant handle, it likes to climb hills its pretty damn nippy on the highways and i love to run around the city on it ...
So afer a 36 hour hike back to Boston i check out the hub .inside is full of brake dust ,dry and crusty grease around the break pivots and all ive got left is about 2.5/3mm of shoe left !also the inside hub break track is nicely scored up . i notice also that the rear brake cable has been rubbing against the wall of the rear tire and has stripped off the plastic coating leaving bare metal cable :( Inside the Teflon lining has melted possibly sticking the cable inside and the break always on (?)
i cant say for sure whats going on except that after a good clean in there and a new set of brakes and hub and a new cable its ok ;
meantime i kept the 6en11-58 needle but dropped down to the 3rd clip .still use the 15 pilot but only went to a 285 main jet. so far its been solid . plug lookin happy as usual !!

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