Search found 207 matches

by RManson
Thu Jun 21, 2018 5:55 am
Forum: Lambretta Tech
Topic: Retard, advance, retard add-on ignition profile?
Replies: 13
Views: 1242

Re: Retard, advance, retard add-on ignition profile?

Not sure what you're building but a thumper with decent compression is going to be a bit of a bear regardless of the ignition timing, my 300cc Rotax case in point. It takes quite a kick to light it off, but usually fires within a kick or two. I have an MSD setup, which allows me to set the trigger a...
by RManson
Sun Jun 10, 2018 7:56 am
Forum: Scooterotica Tuning & Maintenance Information
Topic: Balancing a lambretta crank/top end??
Replies: 4
Views: 1008

Re: Balancing a lambretta crank/top end??

Interesting idea. I would assume that the drive side components are fairly balanced as is the flywheel. And if they're not, they should be. The same for the crank. That would put the rotating assembly at a "zero balance" or neutral state, typically referred to being "internally balanced". Now hangin...
by RManson
Mon Jun 04, 2018 8:59 pm
Forum: Lambretta Tech
Topic: 1/4 turn fasteners
Replies: 10
Views: 940

Re: 1/4 turn fasteners

It's a die that makes the dimple in the panel that the dzus button sits in...

ImageRotax Lamby build-164 by PotvinV8, on Flickr

This link covers installation pretty well...

http://www.goodvibesracing.com/Dzus_Installation.htm
by RManson
Mon Jun 04, 2018 6:22 am
Forum: Lambretta Tech
Topic: 1/4 turn fasteners
Replies: 10
Views: 940

Re: 1/4 turn fasteners

I used them on the Rotax 300 bike for the side panels, floorboards, and the glovebox. Will probably do the same for the legshield and the front fender before it's finished as it makes disassembly an absolute breeze and makes for a foolproof installation (ie no rattles, vibration, etc) and they won't...
by RManson
Sun May 27, 2018 7:00 am
Forum: Liquid Cooled, Motorcycle Engine & Automatics Section
Topic: Rotax 300 builld
Replies: 242
Views: 63501

Re: Rotax 300 builld

Bike seems to be happy with the new/old stator. Made the 100 mile ride today without a hitch! Beautiful weather and a great turnout, nearly 100 bikes. Big thanks to the Long Beach Classic Scooter Club for putting on the event. https://farm2.staticflickr.com/1746/28505695148_3e9efe68e2_z.jpg IMG_6744...
by RManson
Sat May 26, 2018 6:44 am
Forum: Liquid Cooled, Motorcycle Engine & Automatics Section
Topic: Rotax 300 builld
Replies: 242
Views: 63501

Re: Rotax 300 builld

Getting ready for this weekend's Classic Not Plastic event here in Long Beach and it looks like we gots some problems! I thought the charging system wasn't working as it used to and after a probe with the multimeter, my suspicions were verified. Looks like the flywheel and the stator became a bit to...
by RManson
Fri May 18, 2018 5:58 am
Forum: Liquid Cooled, Motorcycle Engine & Automatics Section
Topic: lambretta 290 rotax
Replies: 184
Views: 30427

Re: lambretta 290 rotax

Looking good Holty! What kind of coolant temps are you seeing? Must be maintaining decent temps otherwise that overflow tube would be giving you quite the surprise once it got hot! :D I'm running similar initial timing specs, 17 degrees BTDC, total around 24 for now. Will play with it a bit, but it ...
by RManson
Fri May 11, 2018 7:38 am
Forum: Liquid Cooled, Motorcycle Engine & Automatics Section
Topic: lambretta 290 rotax
Replies: 184
Views: 30427

Re: lambretta 290 rotax

Sounds good Holty and a decent number to boot eh?! Glad to see it's going well! What sort of timing curve are you using?
by RManson
Wed Apr 25, 2018 6:48 am
Forum: Liquid Cooled, Motorcycle Engine & Automatics Section
Topic: Rotax 300 builld
Replies: 242
Views: 63501

Re: Rotax 300 builld

A couple from tonight. Had a blast 'round the neighborhood and things feel very promising.

[youtube]https://youtu.be/tolI_67VNfQ[/youtube]

[youtube]https://youtu.be/zhoG2D2Afc8[/youtube]
by RManson
Tue Apr 24, 2018 5:56 am
Forum: Tech FAQ
Topic: AFR Installation - PX200
Replies: 10
Views: 1612

Re: AFR Installation - PX200

I use one on my Rotax-barrelled Lambretta. Here's a shot of the pipe before I welded the bung in that shows where I located it in relation to the header. I was very pleased with the capability and how quickly I was able to set up the carb. Good luck! https://farm5.staticflickr.com/4371/36927523425_d...