i have an 84 225 dr has tonz of compression has spark and gets fuel , i clean the carb today changed spark plug a 2 weeks ago running premium fuel only through her , started acting up on my last ride , i ended up lossing my air box backing and the filter on that ride, on the way back the muffle was bright red /losing power and popping , like it was on the verge of dieing on me 100kms from my house , havent rode the bike since that day ,

spark plug is a nice brown color

any thoughts or advise would be alot of help

 

Did you get the air filter back on? If not then that will cause the engine to run lean and possibly hard to start. You could have possibly melted the piston rings driving it with no air filter, the engine runs lean, which causes it to run much hotter, which causes the exhaust to glow red. What do you mean when you say that it has "tons of compression"? Is it within specs?

 

compression is at 140, vary hard to pull over with out the use of the De-compressor , n ill order a new filter today , air box is back on but the cover got lost somewhere in the bush so i either have to find one or make one at the shop i work at

 

I agree with raptor. You were running too lean with all of the extra airflow. Since the exhaust was glowing red you may have damaged the piston. You may have also warped your head and melted gaskets etc. Put a towel over your filter box and try to start it.

 

alright ill go do that right now , ill let u guys know how it all went, i hope nothing bad happened the whole top and bottem were just rebuilt , i wouldnt wonna have to do another top end

 

k it started when i poured some gas into the spark plug hole and idled good but got hot quick then turned it off and tryed again with out gas in the spark plug hole and it didnt wonna start spark plug was dry also i didnt notice this till now but there a screw on the bottum of the carb beside the bowl screwed all the way in with a rubber seal and a spring on it with the tip of it poking out

 

Its running to lean. If it ran fine before the airbox got broke I wouldn't touch anything else until I installed the air filter and lid. My quad had much of rhe same deal when I upgraded to the open aluminum airbox. The reason it runs so hot is that you don't get enough fuel to cool to cool the head. So if u start it again make sure u shove a towel into the airbox and see if its any different. Thats what I dis and the I rejetted .

 

alright ill do the reketting and wait till i have the lid made and the new filter installed ill let you know how it goes

 

got filter and everything on but now i have another problem im getting very little to no spark now , even try puttin a new plug and still nothing clean connector on cdi box and no spark at all,