MkI Square Four fine tuning and performance troubles

Singles, twins and fours.
User avatar
Holder of a Nylon Anorak
Holder of a Nylon Anorak
Posts: 121
Joined: Mon Jun 27, 2016 11:42 pm
Location: Austin, TX

Re: MkI Square Four fine tuning and performance troubles

Postby pauldridge » Fri Sep 04, 2020 2:23 pm

It certainly sounds like your engine performance is abnormal. My own MK II, rebuilt just 1300 miles (and 1.5 years ago) has never had such anemic performance. Even during break in, I frequently got speeds up to 100 kph, and now she is very happy to go well beyond that. I respect the old gal's age, so I won't be doing any tests to find out of she will make the "ton" or not, but I have little doubt it could be done with minimal effort.

Wish I could offer a new angle on your issue, but at least wanted to let you know that engine has way more potential than you are experiencing.
Phil Auldridge Austin, Texas - USA
Visit the North America Ariel forum:
53 SQ 4 MK II, '72 Norton Commando, '78 BMW R100/7, '79 Honda CBX, 2014 Indian Chief Vintage

Return to “Four stroke”

Who is online

Users browsing this forum: No registered users and 14 guests