Main Jet

Post Reply
xstian81
NWAA Supporter
NWAA Supporter
Reactions:
Posts: 167
Joined: 06 Aug 2014, 15:02
Bike Owned: Mk3 CRM
Location: Norfolk
Main Jet

Post by xstian81 » 11 Aug 2015, 08:40

I have a MK1 here that is smoking quite heavily. I'm going to check some of the obvious thing oil pump, float height etc.

The main jet is 140, I believe it should be 132. I seam to remember being told in the past to change the main jet in intervals of 5, so if I want to go down a size I would change the 140 for a 135. Is this correct or should I be changing 1 size at a time?

User avatar
frostoff
Site Supporter
Site Supporter
Reactions:
Posts: 158
Joined: 02 Aug 2007, 21:15
Bike Owned: CRm250AR
Location: Bodmin cornwall
Re: Main Jet

Post by frostoff » 11 Aug 2015, 10:19

Should be 132 Mk 1 MK 2128, Mk 3 150 AR 148 so it seems as if the go in 2's.

User avatar
knackeredMk1
Super Moderator
Super Moderator
Reactions:
Posts: 4184
Joined: 03 Nov 2006, 17:41
Bike Owned: Modified Mk1
Re: Main Jet

Post by knackeredMk1 » 11 Aug 2015, 16:53

Sometimes 2 sometimes 3.


Post Reply