tonyc
XS650 Guru
Do a search in the Garage Pamco Pete has a chart that will tell you everything you need to know.
- rotation is 24/23 = 4.4% higher at all speeds in 5th gear - you could also say that engine rotation is about 4.4% less
- its possible that you may have to be more careful setting the clutch afterwards, a 1 piece push rod helps
The only mods you need to do on the shift shaft is remove the chain guide when running the 18 tooth front sprocket. Some have ground away some of the shift shaft to provide a extra bit of clearance.
Leo
Nothing needs to be ground off. If you run an 18t front sprocket, the plastic guard on the shifter shaft needs to be removed. If you run a loose chain your chain will grind on the shifter shaft. Thats all...Maybe some chains are bigger than others and one will need to grind a bit off the shifter shaft to get the needed clearance.
Here is what a 18 tooth looks like on the bike, this is on my 81 special. The chain is a 520 setup.
the groves on the shift shaft are from when my 1st last chain was on the bike to long (tight, way loose,tight) caught me by suprize or when it got to loose.
The bike is on the center stand.
The bike is in the shed to get it ready for summer. New chain and sprockets will be ordered next week.
I will go 18-33 again, seems about right to me.
I would like that over drive gear someday.
thanks Blue finally a picture so that I can see what everone is talking about.
I have been thinking about ordering an overdrive gear for weeks but the shipping costs and shipping time are making me feel ill !
Pity as I still haven't closed my cases yet so if I'm ever going to fit one.......
Nice part of the World where you are I hear...my girlfriend had a 2x week mustang drive there last year at Medicine Lodge
....alot of time when I was in 5th I swore I was still in 5th.
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