hi i just purchased a 1986 lt 250 r and after looking through it the lower motor mount bolt is not there and the holes on the motor dont seem to line up with the holes on the frame,anyone got any ideas on how i could line line them up without pulling the motor, any help is greatly appreciated,also wondering if anyone knows how to adjust the chain on these, thanks

 

Unfortunatley, I don't have that model anymore, or the service manual. The bolt that holds the swingarm to the frame also runs through the engine cases, right? If the motor/swingarm don't line up, loosen all the motor mounts and you should have some play. Also check to make sure the other mounts are orientated correctly.

As for the chain adjuster, there are four small bolts at the very back of the swingarm. Loosen these first. On the sprocket mount there should be a series of small holes. You need a small piece of metal rod that just fits in diameter, use this to rotate the mount and it will adjust the chain. If it doesn't move fairly easily, and the other 4 bolts are loose, I would tear apart the whole mechanism for a good cleaning and new seals, etc. These were notorious for filling with crude and seizing up without routine maintenance.

 

thanks alot for the reply, i got the holes lined up now i just have to find somewhere to get the bolt, also i was wondering if it would be ok to put a set of 22-11-8 rims and tires on it stock is 22-11-10, thanks for the help

 

Yes, you can put 8" rims on it with no problem. Handling will suffer somewhat though, and if you change tires yourself I find it harder to remove the 8" over 9 or 10's. Usually people running 8s are racing mx with an 18" or 19" rear tire.

 

ok thanks alot, one more question do you know what kind of engine oil to put in this, i bought some amsoil dominator 2 cycle racing oil, but noticed on the back it said for recommended for injection oil or as a 50-1 premix, so my question is can i put this in the engine, and if not can i use it for mixing at the 32-1 ratio, sorry for all the questions, and thanks again for the help

 

Yes, you can use the Dominator @ 32:1 premix if you wish. 32:1 always worked well with my '86 when I had it, but I usually used Klotz or Bel-Ray.

 

I would not put this oil in your engine, this takes regular motor oil. I would go to your motorcycle shop to get the motor oil. This takes 1.9 liters. I use Suzuki brand oil. You have to remember that this oil also lubes the clutch. Any questions let me know, I just redid one last year, from the ground up. Good luck. Also I run 32-1 ratio.

 

ok thanks for the info, i just got the manual and it says to use sae 20w-40 in the engine, is this what you used, and also what kind of oil did you use for mixing

 

I used 20-50w because they don't sell 20w-40, for gas and oil I use, benol, because I love the smell, plus I use it in my jetskis.

 

ok, thats why i couldnt find the 20-40, I went to three differnt stores, do you know why they dont sell it, and what do you think of using the amsoil dominator for mixing