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Old 07-19-2003 | 06:00 PM
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jaka
 
Joined: Dec 2001
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From: Upplands Vasby, SWEDEN
Default MVVS 49 power questionable with quiet muffler
Hi!
The first MVVS .49 made were delivered with the 7mm intake carb but later MVVS decided to replace that carb with the bigger 8mm (3219) carb
If you don't have the bigger carb ...order it and see the
difference. Also check that you don't have two head shims installed ...the MVVS .49 were at first delivered with an extra headshim as they knew americans were fond of high nitro contents (above 10%)...the previous owner might have put it in....

Regards!
Jan Karlsson
http://hem.passagen.se/airracing
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