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Old 03-08-2015, 03:27 PM
HappyHappy HappyHappy is offline
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Join Date: Feb 2015
Posts: 112
Quote:
Originally Posted by Vilnis View Post
Only question that is open:
What kind of prechamber are those in my new #20 head?
For the moment there are 50:50 opinion.
Section -1.10- 417 in the factory engine manual details the Removal and Install of the prechambers and has all the specific details of the pre chambers. Original prechambers are stamped or machined with number on their top rim surface right near where the rounded tab fits into the groove of the prechamber bore.

the format is "601/07" or "601/17" etc.

Get some carb cleaner down in there and clean and scrape the top surface that is normally under the retaining ring until you can make out the numbers
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