The Spares Company
Club Shop/Regalia
Parent Website
Contact Officials
Machine Registrar
Club Secretary
Membership Secretaries
MPH Editor and Forum Administrator.
Section Newsletters
Technical Databases
Photos
Home
What's new
Latest activity
Forums
New posts
What's new
New posts
Latest activity
Information
Bike Modifications
Machine Data Services
Manufacturers Manuals
Spare Parts Listings
Technical Diagrams
Whitakerpedia (Vincent Wiki)
The Club
MPH Material Archive
Flogger's Corner
Obituaries
VOC Sections
Local Sections
Local Section Newsletters
Miscellaneous
Club Assets
Club History
Club Rules
Machine Data Services
Meeting Documents
Miscellaneous
Essential Reading
Magazine/Newspaper Articles/Letters
Adverts and Sales Brochures
The Mighty Garage Videos
Bikes For Sale (Spares Company)
Log in
Register
What's new
New posts
Menu
Log in
Register
Install the app
Install
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Squish
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="vibrac" data-source="post: 151110" data-attributes="member: 60"><p>I have gone for .040" and the CR is 8:1 at least it was but I checked over my 2 plug hole head and there are a number of problems I need to sort so as I want this Comet to be the backbone of my Classic Riding starting early this year I grabbed a black shadow head I rescued a year or so ago (someone had put the exhaust valve right through the head and fins!) that only has one plug hole and with the extra 12 thou of base to make .040 I guess I am about 7.8 so no worry about going into the twenties BTDC on the BTH and if I have to kick her over (never had to last year) I guess the lack of a valve lifter wont bother me. a bit more work to loose a few more pounds of the cycle parts and I should be on the road by March. If I get time to sort the twin plug head it is not a big hassle to swap</p></blockquote><p></p>
[QUOTE="vibrac, post: 151110, member: 60"] I have gone for .040" and the CR is 8:1 at least it was but I checked over my 2 plug hole head and there are a number of problems I need to sort so as I want this Comet to be the backbone of my Classic Riding starting early this year I grabbed a black shadow head I rescued a year or so ago (someone had put the exhaust valve right through the head and fins!) that only has one plug hole and with the extra 12 thou of base to make .040 I guess I am about 7.8 so no worry about going into the twenties BTDC on the BTH and if I have to kick her over (never had to last year) I guess the lack of a valve lifter wont bother me. a bit more work to loose a few more pounds of the cycle parts and I should be on the road by March. If I get time to sort the twin plug head it is not a big hassle to swap [/QUOTE]
Insert quotes…
Verification
What was Mr Vincent's Christian Name?
Post reply
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Squish
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top