fmf exhaust jets?

[05blaster3]

its all stock only thing is the fmf and a 260 main jet

 

[05blaster3]

Coulds you post a pic of your plug at #260 main, cos to me it seems lean.

Did you remove the plug and fit anotyer before you rode home?

Did you do it this way.

Plug chop.

Warm up motor to operating temp.

Fit new B8ES plug, ride through the gears and hold WOT in 5th or 6th gear for 10 seconds, or as long as you can safely.

Switch off the motor and pull in the clutch, roll to a stop.

Take the plug out and replace the old one for the ride home.

Carefully cut the threaded end off the plug to expose the insulator.

There should be a smoke ring of a cardboard or biscuit colour around the insulator.

If it is non existant or a very light colour, you are lean and require a larger main jet.

If it is a lot darker you are rich and may go down a size in main.

I prefer to run a little on the darker side, I may loose a little power but it is worth it for the peace of mind that I won't need a rebuild so soon.

http://www.blasterforum.com/engine-13/plug-chop-how-vid-48226/

i rode in second gear (which also got it warm) to were i was going to start so i didnt have to switch out the plug for the ride home

 

[Blaaster]

i rode in second gear (which also got it warm) to were i was going to start so i didnt have to switch out the plug for the ride home

You have to start with a fresh plug at the start of the run.

Of course you can finish the run so that you are near home, but the motor cannot be run before, or after the plug chop run, on the plug you are testing.

Follow instructions and try again.

Warm up motor to operating temp.

Fit new B8ES plug, ride through the gears and hold WOT in 5th or 6th gear for 10 seconds, or as long as you can safely.

Switch off the motor and pull in the clutch, roll to a stop.



Take the plug out and replace the old one for the ride home.

Carefully cut the threaded end off the plug to expose the insulator.

There should be a smoke ring of a cardboard or biscuit colour around the insulator.

If it is non existant or a very light colour, you are lean and require a larger main jet.

If it is a lot darker you are rich and may go down a size in main.

 

[05blaster3]

ohhhhhh ok thanks

 

[mjgnslngr]

whats up with the exhaust? you sent email saying it falls off? are you using your stock coupler??? that stock one doesnt work well with the fmf. i use 1' red high temp silcone hose. would you like me to send you a piece???

 

[schmidtsandwich]

Are you using a toilet roll for an air filter, or do you live in the high country?

300ft above sea level here in minnesota, and its an oem filter, so its not like its breathing too much.