I have got a brand new truck that I can not seem to pull the pull start on. The glow plug is not in and it still will not pull without tremendous effort. I can not move the flywheel by hand. If I take a screwdriver to the teeth and force it around it will loosen up a bit. The next time I try to pull the pullstart it locks up again. Is this normal? I have another truck, but I did not break it in. It pulls easily.

u didnt break the second truck in ???

your truck is sticking at the top of its stroke it is a tight fit with the piston and sleeve that is why it is getting stuck spray a little wd-40 in the piston chamber let sit for 30 mins with the piston at the bottom of its stroke and try it again

always store your truck with the piston at bottom of stroke so that when it cools the sleeve will tighten up again and keep high compression in the engine

I am trying to break it in. The pull start is very hard to pull. There is no chance of me getting the engine started with the pull start so hard to pull. Should I try the WD-40.

I can not get my piston to the bottom of the stroke without use a screwdriver to apply force to the flywheel. That does not seem right. Anyone else had this problem?

when my friend rebuilt the engine in his savage it had so much compresion 1 person had to hold it down while the other one cranked it up

It keeps getting stuck at the top of the stroke with the plug out. I put after run oil in it to help lubricate it. I guess there is something wrong. I had someone else hold it down while I pulled and still could not give it a good pull. Oh well.

that is very strange. maybe you should get it looked at. take the cool head off and see if there is any damage on the piston. have you ever run it before?

I has never fired once.

Some people have those problem speacialy on a brand new engine, of what i seen they used hair drier to heat up the engine first before they fire it up. this way it will expand the sleeve. also make sure that the piston is on the buttom when your not using the trck cos when the sleeve cool down it will go back to thightness so it will hold the piston and it will give you hard time to pull that cord again. Also it is better to use after run oil instead of
w-40 oil. so go to a lhs buy one make a couple of drop specialy after run.

I finally got it fired. I took the engine off the car and rigged the shaft to a drill. I had someone run the drill while I put after run oil in the engine to keep it lubricated. After I did this, the engine was loose enough that you could actually use the pull start. I tried the hair dryer first and that did not work. I heated the engine up so hot I had to wear gloves, but it was not enough. After this, I will not be buying anymore pull starts.