she won't redline... common solutions please!

rob24 · L Plate Warrior Joined: 19 Jan 2016 Karma :

Ok so, recently I had to replace the cylinder head on my lexmoto vixen 125. The new head doesn't have an EGR port so I had to cut off the connection to the carb. before doing this my bike wpuldn't idle at all but now it does! Great! but... it won't go above 8k rpm.. any ideas?
cheers!
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Rob coxon

Pete. · Super Spammer Joined: 22 Aug 2006 Karma :

Check the cam timing and make sure the valve clearances are not too tight. Do you still have the air filter fitted? Is the exhaust blowing at the connection to the head?
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good Very Happy

Teflon-Mike · tl;dr Joined: 01 Jun 2010 Karma :

When you removed the EGR... where did you lop it off? And have you 'plugged' it so that it cant suck extra air in and spoil the carburation?
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My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?'