OP
@fraggleexport avatar
UTC

Hooked
'65 Sprint 177/ '17 GTS300
Joined: UTC
Posts: 469
Location: Dorset, UK
 
Hooked
@fraggleexport avatar
'65 Sprint 177/ '17 GTS300
Joined: UTC
Posts: 469
Location: Dorset, UK
UTC quote
Hello all,

Im pretty near to timing the Rally200 restore and was wondering about the timing. I think stock is 24btdc

My cylinder has had a rebore to take it to 211 and Ive put on a non stock SIP Road(does the exhaust make any difference??)

Im on 'standard' unleaded UK fuel too...

Should I be aiming at 23 or 22??

Thanks Kevin
@rob_hodge avatar
UTC

Molto Verboso
Joined: UTC
Posts: 1924
Location: Seattle
 
Molto Verboso
@rob_hodge avatar
Joined: UTC
Posts: 1924
Location: Seattle
UTC quote
Re: Rebored Rally-BTDC??
fraggleexport wrote:
Hello all,

Im pretty near to timing the Rally200 restore and was wondering about the timing. I think stock is 24btdc

My cylinder has had a rebore to take it to 211 and Ive put on a non stock SIP Road(does the exhaust make any difference??)

Im on 'standard' unleaded UK fuel too...

Should I be aiming at 23 or 22??

Thanks Kevin
well, either. stock is 23, but that is plus or minus a degree.

you're honestly trying to pick fly shit out of pepper at that point; i've even seen timing flutter almost a degree depending on RPM sometimes.
@alanmac avatar
UTC

Molto Verboso
'74 Rally, '72 Sprint
Joined: UTC
Posts: 1147
Location: Melbourne, London, Durham NC
 
Molto Verboso
@alanmac avatar
'74 Rally, '72 Sprint
Joined: UTC
Posts: 1147
Location: Melbourne, London, Durham NC
UTC quote
rob hodge wrote:
you're honestly trying to pick fly shit out of pepper at that
Never heard that expression before. But I like it.
OP
@fraggleexport avatar
UTC

Hooked
'65 Sprint 177/ '17 GTS300
Joined: UTC
Posts: 469
Location: Dorset, UK
 
Hooked
@fraggleexport avatar
'65 Sprint 177/ '17 GTS300
Joined: UTC
Posts: 469
Location: Dorset, UK
UTC quote
Good man thanks Rob. I'll try and use that phrase in the office tomorrow Laughing emoticon
@greasy125 avatar
UTC

Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: UTC
Posts: 15079
Location: The state of insanity, SoCal
 
Sergeant at Arms
@greasy125 avatar
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: UTC
Posts: 15079
Location: The state of insanity, SoCal
UTC quote
AlanMac wrote:
rob hodge wrote:
you're honestly trying to pick fly shit out of pepper at that
Never heard that expression before. But I like it.
well, ain't that dandy!

now... let me tell you about king shit of turd mountain over yonder!

-g
@alanmac avatar
UTC

Molto Verboso
'74 Rally, '72 Sprint
Joined: UTC
Posts: 1147
Location: Melbourne, London, Durham NC
 
Molto Verboso
@alanmac avatar
'74 Rally, '72 Sprint
Joined: UTC
Posts: 1147
Location: Melbourne, London, Durham NC
UTC quote
greasy125 wrote:
AlanMac wrote:
rob hodge wrote:
you're honestly trying to pick fly shit out of pepper at that
Never heard that expression before. But I like it.
well, ain't that dandy!

now... let me tell you about king shit of turd mountain over yonder!

-g
@nebulae avatar
UTC

Addicted
Vespa Rally 210
Joined: UTC
Posts: 927
Location: uk
 
Addicted
@nebulae avatar
Vespa Rally 210
Joined: UTC
Posts: 927
Location: uk
UTC quote
Yes - the SIP road makes a big difference.
OP
@fraggleexport avatar
UTC

Hooked
'65 Sprint 177/ '17 GTS300
Joined: UTC
Posts: 469
Location: Dorset, UK
 
Hooked
@fraggleexport avatar
'65 Sprint 177/ '17 GTS300
Joined: UTC
Posts: 469
Location: Dorset, UK
UTC quote
Hi Neb,
Yeah, I thought it should, just trying to find a ball park of how many I go up on the main jet. Standard is a 118. Ive got a 124 and 126 in my arsenal. Cant imagine it should need more than that???
All irrelevant if I cant get it started again Might tighten the flywheel up next time and do things one at a time

Kevin
@rob_hodge avatar
UTC

Molto Verboso
Joined: UTC
Posts: 1924
Location: Seattle
 
Molto Verboso
@rob_hodge avatar
Joined: UTC
Posts: 1924
Location: Seattle
UTC quote
fraggleexport wrote:
Hi Neb,
Yeah, I thought it should, just trying to find a ball park of how many I go up on the main jet. Standard is a 118. Ive got a 124 and 126 in my arsenal. Cant imagine it should need more than that???
All irrelevant if I cant get it started again Might tighten the flywheel up next time and do things one at a time

Kevin
it makes a big difference in performance- but as far as jetting it's a minor bump. i've even had a few bikes that didn't need an upjet at all when going to one from stock.

really depends on the bike and the rest of the stack, honestly.
DoubleGood Design banner

Modern Vespa is the premier site for modern Vespa and Piaggio scooters. Vespa GTS300, GTS250, GTV, GT200, LX150, LXS, ET4, ET2, MP3, Fuoco, Elettrica and more.

Buy Me A Coffee
 

Shop on Amazon with Modern Vespa

Modern Vespa is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com


All Content Copyright 2005-2025 by Modern Vespa.
All Rights Reserved.


[ Time: 0.0123s ][ Queries: 3 (0.0030s) ][ live ][ 323 ][ ThingOne ]