38 teeth with an 18" wheel
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bigger engine
- Thread starter muppet65
- Start date
38 teeth with an 18" wheel
muppet65
XS400 Member
Is the xs 500 engine to tall like the xs650
muppet65
XS400 Member
got a 36 tooth rear and it struggles to do 70 feels like i need more gears.slow getting there aswell
then its over geared, max torque is at 7k revs max HP is circa 8 - 9k revs
muppet65
XS400 Member
does it make a big difference if i use a 38 tooth sprocket
do you have 18" wheels or 16"
muppet65
XS400 Member
18 inch rear wheel
yep it will make a difference.
a honda CBX should drop right in. or a Triumph Thunderbird. lol
skillzman1
XS400 Junkie
cr500........kx500.....thats my idea someday!!!
fxrjockey
XS400 Member
how about grab a tourch and welder. you can make anything fit!!!
isigt
XS400 Addict
skillzman, i've been thinking the same. haha, love those old 2-strokes engines.
seen this one?
seen this one?
skillzman1
XS400 Junkie
oh man I love that...............................................bike too!
muppet65
XS400 Member
cr 500 would do the trick.
Have you checked your timing? I was able to run right up to 65mph, but no faster, and then it would start to bleed off speed and I could not even maintain 55mph.
I thought it was a fuel issue so I tore into the carbs and cleaned them (again). This turned out to be needed and resolved a couple of minor issues, but not the top speed problem.
On Saturday, I checked my static timing. It was off. It was my own fault, I had the cam cover off a while ago and marked the distributor plate and just put it back where it was (or so i thought) without timing it. Also, before I reset it, I found out the right points were messed up, so I filed them and reset the gap. After setting both gaps, I re-timed using this method (good tutorial, don't know who this guy is, but he did a nice job):
I can now cruise over 65 mph (I usually spend my time on back roads, so not too often) and top speed is somewhere over 80mph; it's not a whole lot higher I would guess, but I got to 80mph and there was more left...going up a slight grade. As I mentioned above, I run a 37 tooth sprocket. I am 6'3" and 230#. If you are not as....imposing....you should have no problem running well over 80mph if the bike is properly tuned. If you want to cruise all day long at 80mph+, wrong bike for the job. Sell it, buy something else.
I thought it was a fuel issue so I tore into the carbs and cleaned them (again). This turned out to be needed and resolved a couple of minor issues, but not the top speed problem.
On Saturday, I checked my static timing. It was off. It was my own fault, I had the cam cover off a while ago and marked the distributor plate and just put it back where it was (or so i thought) without timing it. Also, before I reset it, I found out the right points were messed up, so I filed them and reset the gap. After setting both gaps, I re-timed using this method (good tutorial, don't know who this guy is, but he did a nice job):
I can now cruise over 65 mph (I usually spend my time on back roads, so not too often) and top speed is somewhere over 80mph; it's not a whole lot higher I would guess, but I got to 80mph and there was more left...going up a slight grade. As I mentioned above, I run a 37 tooth sprocket. I am 6'3" and 230#. If you are not as....imposing....you should have no problem running well over 80mph if the bike is properly tuned. If you want to cruise all day long at 80mph+, wrong bike for the job. Sell it, buy something else.
i did 11 hours @ 80mph a few years ago. trip to the NW200 races. bit tiring though
