got my yz 80 now got a few questions.?

[DarkestGKnight]

hi i bought the yz80 for 50 bucks its a roller and only missing the engine and exhaust, so it seems like the frame is a decent size and will take a pretty big engine, what other engines can i fit in here? maybe yz125? thanks tim.

[RedRider_AK]

First off, Suzuki didn't make the YZ80, it's a Yammi. If it's a Suzuki, it's an RM80.

Secondly, you can probably get engines for it on Ebay for pretty cheap.

If you have the welding skills and material, you can make ANYTHING fit. I've seen a KX85 with a KX500 motor in it, talk about scary!

[DarkestGKnight]

oh crap i didnt mean suzuki its becasue i was getting confused with my other bike thanks for pointing that out, yes i have welding and the materails to do it, just wandering what would be a good motor im thinking a yz125. yeah id be pretty scared of the power band that 500 has lol.

[RedRider_AK]

I think a YZ125 motor would be nice, but this YZ80 you have is probably vintage and meant for an air-cooled engine. I would try to find a vintage 80 motor for it before dropping in anything else. If not, check to see if a YZ125 from the same approximate age would drop in with minimal mods, that might be easy to do.

[DarkestGKnight]

um see the thing is its not air cooled its got a radiator, but i checked the years on bikepics.com and the only year that i saw on there that was black and yellow was the 83, now im not sure becasue i havent looked at the bike id plate yet, but on bikes pics the 83 had a ratiator to.

[RedRider_AK]

Ohh, ok. I don't know if the 80 radiator would be enough to keep a 125 cool. If the 83 was some kind of one-off single-year engine, it might be hard to get one like it...

[DarkestGKnight]

yeah i kno im still looking for a 80 engine tho the 125 was just a thought i mean the 83 and up years had radiators so maybe i can get a knew engine. if not ill keep my eyes peeled for a oraginal motor. im in no rush to get an engine as i am doing another project right now, just wanna do alittle info casue im bored, but yeah if i go with the 125 i might get a 125 ratiator casue they are about the same size i think if not ill see if it fits. thanks tim.

[New2ATC]

i believe it is 83-92 were very similar. Not to sure if its on the engine parts aswell but i dont see why you cant make a newer engine fit. If you have the welding skills and materials, maybe you could find a aircooled 4 stroker and stuff it in there, or go on ebay for a motor.

[DarkestGKnight]

see i have a 125cc 4 stroke thats sitting in my garage but i want a 2 stroke engine in it i like 2s better and really never had one.

[New2ATC]

ah i see.. well keep lookin around im sure you can find a 2 stroke engine relatively cheap.

[RedRider_AK]

Another thing you have to think about with putting a 125 into the 80 chassis is the chain size. The 80 uses 428, while 125's use 520. You'll have to get conversion sprockets made up.

[DarkestGKnight]

yeah thats another thing i kinda didnt wanna do i dont mind making up mounts,welding etc, but i already have the chain ready to be put on so im gonna keep searching for a motor, ill put pics on sometime this week for you guys. tim

[oldskool83]

your waisting your money

[DarkestGKnight]

y you say that i love projects, maybe in you opinion im wasteing money but i personally dont think i am at all.

[RedRider_AK]

y you say that i love projects, maybe in you opinion im wasteing money but i personally dont think i am at all.

We'll have to see about your RS250/200 build, but I think you'll have fun sticking an engine into this little thing. I had a 2001 YZ80 this summer, and it was so much fun to rag on, I kinda regret selling it.