What the heck do I have here

[sub1427]

So I ordered new jets for my bike... I was trying to get 120's to help with the acceleration in mid to high range rpm riding... The jets in the picture are 120's I put them on and the bike would not drop below 4000 rpm idle... I have pod filters and a 4-1 exhaust, any recommendations on what I need to order and where I can order it? Im assuming I ordered the wrong jet, I need primary jets? the ones with the tubes attatched to them, the longer of the two jets on the bike?


 

[CB750Winger]

Not sure what model or carbs you have but have you synced the carbs, checked floats, etc? If the carbs are out of sync, sometimes the idle screw won't help and it could run like crap.

[dylansdad022102]

 i agree with what winger said, but 120 jets? a bit much i think. what yr 750 do you have i got theclymer for 79-83.

[Re-run]

We need to know the year of your bike and if it has the stock carbs. A 120 is pretty common on the earlier 750's. Did you take the carbs off to rejet? If so, check for air leaks. Very common issue.

[sub1427]

Its a 1980 CB750 C.  It has pod filters and 4-1 exhaust, currently on the bike all the jets are stock, 68's and 102's... my problem is I bought the jets pictured above (120's) and dropped them in and started the bike, my rpms rocketed to over 4k, do the jets that i bought have anything to do with that? ORRRRR maybe I had too much tension in the throttle cable when I put it back on... hmmm... Because from what I herd those jets are only supposed to kick in between 3/4-WOT... but also the jump seemed huge, the jet I replaced went from 68 to 120, Im pretty sure I just bought the wrong jet

[woodsrider250-2]

You care correct...Something else is wrong.