You can do it with the clutches on but it is a real pain.Best to pull them off.

 

where is the best place to get a pipe for this bike cheap?

 

You dont want to pipe a 250 Trailboss.A pipe and silencer along with the matching clutch kit will cost you more than the bike is worth.Just get it dialed in and enjoy it for what it is.A good little work/riding quad.

 

may be you can help
bike won't start it seems there is no fuel going into the combustion chamber, the plug is dry
have just rebuilt the changed the filter an still nothing any thing you can think of
thanks

 

when you did your top end do you go with a strandard size piston or did you go up in size?
an how do you do the seals?
did you take off the clutches? an did you do it with the engine on the bike?
sorry to ask so mant questions but i am new at this thanks for all your help

 

It is always easier to pull the clutches off to do most anything.You will most likly need to get it bored and a new piston.Check the other post before you start tearing things apart.

 

i know will need new piston but will ihave to get it bored?

 

the comperssion guage reading was zero it never moved?
idid fell air pushing out the back an my hand was coated with gas?
now when i pull this apart how can i tell wht size piston i will need/

 

it turns out there is no compression so am doing top end,could you give me instructions on how to do the seals? you said was easy fix, an any tips on doig top end would be nice
thanks

 

My 95 250 Blazer, I did a head job without pulling the motor or clutch. I just had to bend the shift lever spring tab out of the way. Little tricky wrench work on a couple cylinder nuts. But if your changing crank seals, have to pull the motor anyway. Easy.
Measure the piston to find out what size you need. stock size is 72mm (2.834in.) You can over bore up to 74mm, but you just want to go .5mm at a time.
So if its stock, just go 72.5mm if you can.

I doubt you have "0" compression, unless you have a hole in your piston or your piston isn't even moving.

But take it apart, its super easy. Get a shop manual!
Head Picture
Cylinder picture