square slide carbies.

[john d]

Maybe this may help.
 Whats the stud spacing on the the intake manifold? What size is the spigot and the bore on the Mikuni ?





 We ran into the same kinds of problems here in the States with Different bikes and what class they can run.
 Rokon's  came with disk brakes. They are allowed to compete. We have a similar rule on Flat Slide carbs. , but Lectrons are allowed in our Historic class because the late Pentons / KTM's came with them stock. Hope some common sense will prevail where you folks are , our bunch has pretty much lost any semblance of that . Chuckle Chuckle !!!!!!!!!
 john d.

[Rossvickicampbell]

Firko - maybe that is one of those cases where it actually gets pointed out to "the powers that be" for an adjustment to our rules?

Just a thought

Rossco

[jimson]

Firko my little Indian was made in 1973 and it came stock with a 26mm square slide del orto carbie  jimson

[Freakshow]

OK repost change the suzi carby rubber is too small as in the bolts brush up against the rubber, what did you use other than nuts to secure it so they didnt tear into the Rubber ? i was trying to think or a captive nut with smooth sides and the allen bolt lid ?  ideas or VAndy post a piccy of you intake.

[211kawasaki]

it wasnt so much that there was a lack of reaserch on the flat slide issue, there was and through this forum considerable information was supplied, considered and discussed.
The reason why it was decided to cut off the eligibility at pre 78 was it was undeniable that flat slides were generally available in the pre 78 period. We were correcting the "you cant use flatslides - period" rule that technically prevented bikes fitted standard with them using them!
The problem with pre 75 is more about management, they were not readily available and they are / were rarely used pre 75 and although it can be argued that some were available like early Mk1 Lectron etc  there had to be a decision made.
How do you determine what flat slide is OK or not? Are the riders calling for the inclusion of specific indervidual units to be included in the MOMs? Its up to the riders, put forward the case and your voice will be listened to.

[Nathan S]

"Flat side carburettors are prohibited unless originally fitted to the machine in question".
You could include a bit about needing to be the original type of flat side, if anyone thinks that a 1973 Indian 125 or a 650 Benelli fitted with a period Lectron is going to upset the apple cart too much...

[john d]

freakshow,
 This is what we did on a 1973 , 125 cc Wombat we installed a reed kit on.
We had to use a new style 26 mm Mikuni in place of the old 26 mm flange type carb.
 





 We had to use one of the Amal manifolds because of the stud mounting widths.
We used allen head screws and turned down the head diameter to clear the manifold and the clamp.
If you don't have access to a lathe you can use a drill mounted in a vise and a good sharp flat file to do the turning.

john d.