rebuild

[wolfmaster74]

So I bought A DT

and my first reaction was ...

this is slow and gutless! My Gilera vx 125 would be flying past !

Bike wouldnt really ride above 50 mph and not rev past 6 1/2 k unless you was in first or 2nd.

So i did some reading and thought uh'oh this is the model they heavily restricted.

So did the usual, checked pv was ok.

Checked air filter,

Checked plug

Unplugged reed switch from clocks and wrapped up air\water tight and placed someone else dry.

Now when riding the bike if i took it up to 7k through first and 2nd 3rd but in 4th would start to feel like its hitting a rev limiter, bike would try to rev up but is going duh duh duh duh stuttering but if i held on to the throttle at WOT and would eventually pull through this, but still not get past 50/55mph

so i can be trundleing along in 6th at 50mph at about 5 1/5 k revs but now i need to overtake someone drop it down a gear and then it starts doing the thing like hitting a rev limiter.

So i then thought ok fueling, stripped carb cleaned couldnt see anything obvious, all looke ok so built it back up put it back still no difference, got a new br9es spark plug checked the gap still no difference.

So after much reading of similar problems im now down to checking the reed valves and cranks seals.

So after all of that i think ok low on power no biggie road it to work, and about 3 miles from work it seized with a metalic clinking sound .

bike still runs but as soon as it gets a little warm you can hear it sticking then stalls it self, if you rev it sounds very metaliclly like something is hitting.

So I stripped it down not rally too much wrong can see skirts of piston can see signs of siexing and same on bore but no really scorches or deep marks.

I have now sent the barrel of to be re-honed and they will aldo supply the gasket set and a new top end bearing for me .

Will re-build in a few days and report back !

~ Wolf

[blackhat250]

Welcome volf " read that thread on heat siezure, all will be revieled,