Airhead

15 times duhh thats frustrating. I would think you need to sort out that vacuum tap first, is there any way you can pull off the fuel to carbs pipe to test it for leaking? alas I have no experience of working with these things. as for the carb it must be either crud in the needle valve leaking float (give it a shake) wear on the needle valve a n other? Can I give you a tip..mention the bike model in the topic title when asking for help...much more chance of getting other owners to read it I'll do it for you ...Paul

Good pics Pat, somehow it looks a bit chilly but hey...April Your house look great but I dont know why you want so many cars

Scoops copy and paste the BBCode on flikr for your pics...I did it for you

I have a 125 barrel and head if you want to swap

Damnn yes Lee your bike will be running lean. if your aibox is the more modern one accessed from the left of the bike you need a 3U500 carb...and its not just the main jet!! also the needle and needle jet, pilot jet and the throttle slide cutaway are different. This is because the later air filter box is a less restrictive one as compared to the early version.

yes its + 0.75mm

i'm ok...not watched it

Greetings wagy

Greetings Gary last off the mark but still, its cheap to run eh?

lucky lew greetings

start a topic outside of here yamste in the most appropriate one Greetings

Greetings lexie

What are the numbers Geoff?

Greetings Geoff aaah a DT

Greetings John

Passing through Wheldrake

but what of the original seal...spring both sides ?

Bang on guys go for a quality name koyo fag skf etc, take advice from the retailer they know their job. you will also get oil seals too. The name I use would be brammer http://www.brammer.cz/uk_brammer_products.aspx

This is my DT175 carb, your carb is similar maybe

The gang

so you posted incorrect info in you original post thats why i gave you info for a 1981 bike! ok then for the earlier version Mikuni VM24SS, Number 2H500 Standard Set up with factory porting, standard exhaust and air filter Throttle Slide cutaway, 2.0 Needle, 4j13 Clip position 3 from top Needle Jet, 249 0-2 Main Jet, 130 Pilot Jet, 25 Reed side diameter, 35mm Filter side diameter, 43mm Length, 85mm Float Height, 21mm

two points 1 if you do look to but a 2T res make sure you buy one for the later model with square swing arm, that one would mount on the right of the bike with air filter on the left 2 so the later DT175MX engine would have a carb with an id number 3U500 these are the original specs for that carb Mikuni VM24SS, Number 3U500 Standard Set up with factory porting, standard exhaust and air filter Throttle Slide cutaway 1.5 Needle, 4j6 Clip position 3 from top Needle Jet, 267 0-8 Main Jet, 160 Pilot Jet, 20 Reed side diameter, 35mm Filter side diameter, 43mm Length, 85mm Float Height, 21mm

Great she's a beauty well done, love the shiney pipes

sean is there a pointer on the actuator arm and a corresponding raised mark on the top of the crank case ?

Mike jetting size depends on which model,I would go up 5 points on the main jet (whatever is in now) and premix 35/1 would be enough although myself I prefer pumped oil