TOPIC:

swest wrote: Can you do a 5th gear plug chop?
Steve

Please describe how to achieve what you want, since I'm a little slow getting my mind around this for some reason.
Are you suggesting I ride at WOT?
It gets into the red-zone really fast, so I let off the throttle out of fear of blowing myself up along with the engine.


P.S. The rev limiter is set at 9500

No I was suggesting taking a reading at HWY speed to see how they burn there.
Steve

swest wrote: No I was suggesting taking a reading at HWY speed to see how they burn there.
Steve

Ok, I think I'm around 5-6K RPM's in 5th. at 75-80 mph. with throttle maybe 1/4-1/3. Haven't paid close attention to that, but I'm fairly sure the throttle is less than half, if even 1/4.

Is throttle opening important to know for this? If so, I'll mark the grip to find out.

Good, it will give you an idea how it's burning at the most common speeds. Next you can be at 70 and grab a handful, once it starts to pick up, shut it down and see if the plugs are wet or dry. One plug will tell you that.
Steve

The photos show the mixture while doing normal riding is fine. Doing more plug checks after riding on the freeway will most likely show the same thing. Doing some true main jet plug chops is somewhat problematic for obvious reasons. You need to get the engine up into the higher rpm range with the throttle held open for a few mins which requires either a dyno or a race track. I've heard that some guys do this sort of testing after pulling off a couple of plug wires. Go blasting at high rpm and high throttle on two cylinders so the bike doesn't go into warp drive way over 100 mph. I have no experience doing this sort of test and can't offer any more suggestions than what I have mentioned here though.

SUDCO has the 5th edition tuning manual out . has lots of good tuning info.



there are 4 circuits to tune .by throttle position.

my current set up in my 810 cc is .8 air jet, 15 pilot 115 main , middle slot on needle and about a 1/2 turn out.

Nessism wrote: The photos show the mixture while doing normal riding is fine. Doing more plug checks after riding on the freeway will most likely show the same thing. Doing some true main jet plug chops is somewhat problematic for obvious reasons. You need to get the engine up into the higher rpm range with the throttle held open for a few mins which requires either a dyno or a race track. I've heard that some guys do this sort of testing after pulling off a couple of plug wires. Go blasting at high rpm and high throttle on two cylinders so the bike doesn't go into warp drive way over 100 mph. I have no experience doing this sort of test and can't offer any more suggestions than what I have mentioned here though.

Sure is running good...and even starts easier.

Imagine the unsparked plugs and more getting drenched with fuel.

kawi810 wrote: my current set up in my 810 cc is .8 air jet, 15 pilot 115 main , middle slot on needle and about a 1/2 turn out.

The fine-tuning options, and results.
CV's just don't get it.

daveo wrote: Sure is running good...and even starts easier.

Imagine the unsparked plugs and more getting drenched with fuel.

Good to hear the bike is running well.

For obvious reasons the only plugs you would "read" after doing such plug chops are the ones that are running.

Nessism wrote:

daveo wrote: Sure is running good...and even starts easier.

Imagine the unsparked plugs and more getting drenched with fuel.

Good to hear the bike is running well.

For obvious reasons the only plugs you would "read" after doing such plug chops are the ones that are running.

Thanks Ed, I may attempt the other method which I don't understand either.

Rs 34 mm