Can the timing be adjusted on a 89 DT55 Suzi? I find no referance in my (clymer) manual (just ordered the Suzi manual). Or is this motor only automaticly timed w/ the computer and the throttle position sensor? Engine was recently rebuilt, runs fine but lacks top end rpm. Compression is about...
After a tear down and replacing a piston, rings and seals I also rebuilt the carbs. The floats were set (I thought) very low. I set the floats to the specified (clymer manual) height. Still didnt get the hi end that I had before. I reset them a little and still not quite there. Compression is...
I have rebuilt the center cylinder (new rings, wristpin and bearing)on a 1989 suzy dt 55, oil injected 2-stroke engine. I also overhauled the carbs. My (Clymer) manual says to run 50-1 oil in my fuel durring the break-in period (after a rebuild) even though the engine is fuel injected (oops...
I just wanted to say "thank you" for all your help and pearls of wisdom. I had a hole in a piston apparently due to a lean cylinder. I replaced the piston, rings, wrist pin and bearing. I rebuilt the fuel pump and 3 carbs. Replaced the Lower bearing. Trued the head and head cover w/ a plate of...
Just rebuilt 89 Suzy DT55 after a hole blew thru the center of the No. 2 piston. Engine now starts up fine and runs reasonably smooth. Now I see alot of air bubbles on the inlet side of the fuel pump and exiting the pump to the carbs. Could this have caused the hole in the piston (causing a lean...
Rodbolt and Ray, thanks for the help on my engine rebuild. All worked out well. My concern is; when overhauling the carbs I found the floats adjusted very high. About 3/8 of an inch higher than the manual recommends. (not at all "level with the carb mating surface" as stated in the manual). I...
1989, suzuki dt55. While running on plane I suddenly lost power. The engine would run but at low speed. I pulled the (3) plugs and found the center plug was wet w/ oil and particles of something on it. Ran a wire into the plug hole and found a hole in the center piston. I know a lean condition...
My 1989 Suz DT55 will not get to high rpm under load. This happened while I was running on plane and the motor lost (full) power so I shut her down. Started right back up and ran fine for about 100 yards then back to low rpm. Runs fine at "low" rpm in and out of water. Hasnt been able to run at...
Hey there, new to the forum. I have seen this before but havent seen the fix. While running on plane my DT55 dropped power and runs about 3000 rpm. Now it will not run above that. RPMs are fine out of the water and not under a load. I do have the owners manual. I replaced my oil filter and that...
