Question about carbs and jets

[BlackBike]

You're taking the lead on this carb bashan project afaik. Most posts seem to be for hawks. Good luck, I will be taking notes I'm sure it's somewhere on this site

[Sport Rider]

Originally Posted by BARLOW

ok, if i get this carb, does anyone know for sure what type of jets i will need to get for it
http://www.ebay.com/itm/301820210819...%3AMEBIDX%3AIT
i have to try something ... i really like this bike, if i could just get it to cruse at 55 or so that way i can take it out on the road past town

edit: i will be ordering this stuff next week on wednesday, so any help before then would be supper ... thank you

look up my thread on the hawk tuning. This carb is the same as the one I got. I posted ebay links to pilot and main jets that will fit the carb you found. The jetting WILL make a difference for you. Hopefully enough for you to get comfortable with it.

[BARLOW]

Originally Posted by Sport Rider

look up my thread on the hawk tuning. This carb is the same as the one I got. I posted ebay links to pilot and main jets that will fit the carb you found. The jetting WILL make a difference for you. Hopefully enough for you to get comfortable with it.

i looked in your post, i did not see any link in it for your jets

[nonone]

Originally Posted by BARLOW

i looked in your post, i did not see any link in it for your jets

Here is a good place to start for a VM-26
http://www.ebay.com/itm/161772202331
http://www.ebay.com/itm/151755556738

These may be useful as well
http://www.pjmotorsports.com/vm-spig...-exp-view.html
https://www.jetsrus.com/carburetor/c...iew_parts.html

Also very useful
http://www.4strokes.com/technical/carb-jetting/

[Sport Rider]

Originally Posted by BARLOW

i looked in your post, i did not see any link in it for your jets

if you are in more of a hurry, I expect most motorcycle shops would have these jets in stock. just tell them it's for a mikuni VM26.

[BARLOW]

Originally Posted by nonone

Here is a good place to start for a VM-26
http://www.ebay.com/itm/161772202331
http://www.ebay.com/itm/151755556738

These may be useful as well
http://www.pjmotorsports.com/vm-spig...-exp-view.html
https://www.jetsrus.com/carburetor/c...iew_parts.html

Also very useful
http://www.4strokes.com/technical/carb-jetting/

this does help, i was not sure if i needed large, small, round or hex ... thank you

[BARLOW]

Originally Posted by Sport Rider

if you are in more of a hurry, I expect most motorcycle shops would have these jets in stock. just tell them it's for a mikuni VM26.

not in a big hurry, just need to know what ones to get, so i can order everything at the same time ... thanks for helping me out

[nonone]

Originally Posted by BARLOW

this does help, i was not sure if i needed large, small, round or hex ... thank you

If you ever get parts over the counter make sure they are not for a VM-26-808 as they use different jets an a few other parts.

[BARLOW]

ok, i guess it is time for me to eat some crow with a red face ... today i took the bike out again, and it felt like wot in fifth gear was holding speed, even though i can see that the speedometer is dropping. however i watched the speedometer in other gears as well today at wot, and in every gear as the motor starts to vibrate near the top of the gear, the speedometer drops way off, then pulls back up way faster than i am accelerating until it catches back up ... i know the bike has more to give, and i am still getting the carb and jets ... my new question (ill try here before i start a new thread) is what would cause this to happen? the cable seems to be seated at the wheel just fine and i have not taken the cluster off yet, but i am guessing it is an old style steel wheel/magnet type speedometer ... any help would be put to good use, thank you

[Adjuster]

Lube your speedo cable and lube the drive gear at the wheel. Your speedo cable should slide out of the sheathing. Pull it out and as you run it back in drag it through some grease on your hand.

I love this stuff but any type of lube will work.


http://www.harborfreight.com/85-gram...dge-93744.html


http://www.amazon.com/Super-Lube-210...rds=super+lube


Interesting I also just learned this is a dielectric grease.


/

[Adjuster]

By the way a good test for the cable is to get your front wheel off the ground and hold the cable while you spin the wheel. You will easily be able to feel any binding or other issues with the speedo system.


/

[BARLOW]

Originally Posted by Adjuster

Lube your speedo cable and lube the drive gear at the wheel. Your speedo cable should slide out of the sheathing. Pull it out and as you run it back in drag it through some grease on your hand.

I love this stuff but any type of lube will work.


http://www.harborfreight.com/85-gram...dge-93744.html


http://www.amazon.com/Super-Lube-210...rds=super+lube
/

if it were a cable bind or lack of lube, how would that make it only do it at the top of each gear, and not at a set speed or at every speed, and unless the top of the cable is small, it will not come out, but i will go try and check that out ... thank you

[Adjuster]

If the cable has any kind of 'catch' or 'grindyness' to it it will make the speedo erratic and constantly compensating and trying to catch up. Also place your hand on the speedo box as you spin the wheel to see if you feel any clicking or catching inside the box. You will be amazed how much better the speedo works with a lubed cable.


/

[BARLOW]

Originally Posted by Adjuster

If the cable has any kind of 'catch' or 'grindyness' to it it will make the speedo erratic and constantly compensating and trying to catch up. Also place your hand on the speedo box as you spin the wheel to see if you feel any clicking or catching inside the box. You will be amazed how much better the speedo works with a lubed cable./

well, it felt free spinning the cable by hand, but i put some grease on the cable anyway

[BARLOW]

well, today i took my drill out to the bike, and hooked it up to the speedo cable, went all the way to the top end with no trouble, so i still have no clue where the trouble is ... too much rain to go test it on the road, but maybe tomorrow i will have a chance, and report back