Something must not have been lined up and when I tightened the case screws it would cause it to bind. I took it all apart and refitted everything and it seems ok now. I am going to seal it all up, put in new rings and say a prayer. With any luck I will have the old girl running this weekend. On a si...

I used a shoe box and it worked. I got the engine back together but now it is turning really hard. Is it possible that I over tightened the case screws? I didn't crank on them but I did snug them up. Any suggestions?

I will get that a shot when I get home. I was being lazy and did not take the trans gears out of the left side. I don't think I will be able to get it together unless I do though. I will let you know how I make out. Thanks again

OK So after a long military weekend I am able to get back to my engine in the evenings. My son asked me why I was washing the dirt bike engine in the sink downstairs and I replied because your mother would catch me if I was upstairs. :) Anyway.. I got everything cleaned up and the parts in the mail ...

Hello, I am about to clean up my engine (ACE 100) before I start the reassembly. In the past (car engine past) I wash my engine parts with dawn soap to clean everything up before putting it back together. Can anyone share some tips I should know before reassembling this engine this weekend? What typ...

very cool bike Wish I could find a deal like that. It is a labor of love for sure and good luck. I am learning a lot from the members of this site.

If it said "looking for a good dirt bike" I would have been all over that link.

So I was able to get the case split without any trouble this weekend. The bearings look good and everything was pretty clean. There is a ton of silicone that is sitting in the case so I am glad I split it. I see why the silicone was used, the previous owner did not want to mess with the two broken s...

I flipped the engine around to see what I am facing on the other side and things don't look much better. There are a couple missing screws that the last guy just filled the holes with silicone. I measured the bore and it is right on 2" but I can feel a couple digs on the walls. So how deep it t...

Here is a clear shot of what is holding my clutch together. I could see how it could be problematic. It looks like an easy fix while I have the cover off. Thank for noticing!

I am glad I said something! Looks like I will be taking the clutch off for inspection to see what else has been done. Thanks for the great info. I am going to try and get some garage time tonight so I will take some more pics. Thanks for the great photo!

Thanks or the reply's. My engine has the safety wire and not the nuts. It just looks like small cotter pins to tell the truth, but they are bent over and look like they are in great shape. I am not planning on taking it apart if I don't need to. Everything looks real clean in there, I am not sure if...

Workshop Manual- Ace 90/100 /100MX- Part# 209000

Has anyone used this manual to rebuild their motor? Is the best one to use for a simple rebuild? Thanks!

I got the side cover off of the ACE 100 yesterday and it is really clean in there, except for all of the silicone sealant that is gunked up in there. If you look at the pic you can see the large piece hanging off the engine. the flywheel also has a large amount on it. I am not sure why this would ha...

Thanks that is encouraging! I need to get a shop manual for sure. I might be able to sneak that in

No Silicone- Check I think the last guy put the entire engine together with silicone so it looks like I am going to be doing a total tear down, cleanup, and reassemble. This is my first attempt at this but I am pretty mechanical so I am going to give it a shot. I will be looking for a lot of advice ...

So I decided to look into this whole no compression thing I have going on. Well... it looks like at some point the rings got eaten by the engine because the was just two little pieces left. The piston has a .040 stamped on the top so I am guessing it has been bored .040 over or is that stamped on th...

Hello, I just had the same problem on my Ace100 and I ended up getting a used stator plate and coil from Bruce in Idaho, I put it and whammo... Spark! Now I have to figure out why I am only getting 30LBS of compression out of my bike. Good luck with figuring this one out, I know it can be super frus...

I am hoping to get the timing all set tonight, have not anytime in the shop but I will let you all know how I make out. Thanks for the advice!

MTN

Wow They look slick! Good Luck

Here is another quote. 550 isn't looking so bad now

"The last one of those tanks we did was 750.00, it mostly depends on condition and the amount of prep work it takes, thanks Bill."

I got my stator plate and I got spark last night (thanks Bruce, it is great). That is the good news. I could not get it to fire at all though. I put a little gas down the sparkplug hole and tried kicking her over and nothing. I have good compression (feels good at least as I don't have a comp tester...

Here is the quote "Thanks. The cost to repair the dents and repair the tank is approx. $550 + shipping. Please note, when we strip and plate a tank, it does immediately rust inside and will need to be cleaned and coated after chrome plating. Please let us know if you have any questions." I...

So I went out and got a quote for re chroming the tank on my Ace 100 holy cow. It came in at $550.00 to chrome it and take out a couple dings. There is no one local to me that does it that I can find. Does anyone have a vendor they have good luck with I could get a quote from? Thanks for the help! MTN