KR150cc Kawa 2 Stroke
Posted: 03:37 am Jun 06 2021
Is anyone familiar with the KR150? It's a Kawasaki 2 Stroke road racing bike that was produced in Thailand through the 90's and 00s. It's very popular in Southeast Asia, but hardly known elsewhere.
Apparently the engine is based on the KX125, although I can't be sure as info in English is hard to come by for this bike. However the bike itself is extremely common throughout Thailand, where I live. Stock they supposedly produce 30hp.
It's quite common here for people to put 2T road bike engines into MX/Enduro frames. The KR150 is favored for this as the KIPS isn't electronic and the motor is know for it's reliability.
There's a racing block that can be bought for around $180, this is 68mm, which makes it bore x stroke 68mm x 54.4, which is similar to the KDX200 (66.0 x 58.0 mm) and makes it 200cc.
Rolling chassis of aluminium framed MX bikes can be had here for around $1,500.
A KR150 engine would be around $100, but would require work. If than bore and stroke was 68mm x 54.4 can anyone guess how similar powerwise this engine could be to a KDX or how good it would be in an MX frame? The gear box may be a problem, I'm not sure how much sprockets could help?
I'm considering putting looking for a KXF chassis and adding this engine. I wouldn't do the work myself, I don't have time and can find ppl experienced with this. Parts and work are cheap, but accurate info can be difficult to come by. I used to have a KDX220 and loved it, but parts and work were difficult here, which would be an advantage of using the KR engine.
Any ideas on the viability of this idea?
Apparently the engine is based on the KX125, although I can't be sure as info in English is hard to come by for this bike. However the bike itself is extremely common throughout Thailand, where I live. Stock they supposedly produce 30hp.
It's quite common here for people to put 2T road bike engines into MX/Enduro frames. The KR150 is favored for this as the KIPS isn't electronic and the motor is know for it's reliability.
There's a racing block that can be bought for around $180, this is 68mm, which makes it bore x stroke 68mm x 54.4, which is similar to the KDX200 (66.0 x 58.0 mm) and makes it 200cc.
Rolling chassis of aluminium framed MX bikes can be had here for around $1,500.
A KR150 engine would be around $100, but would require work. If than bore and stroke was 68mm x 54.4 can anyone guess how similar powerwise this engine could be to a KDX or how good it would be in an MX frame? The gear box may be a problem, I'm not sure how much sprockets could help?
I'm considering putting looking for a KXF chassis and adding this engine. I wouldn't do the work myself, I don't have time and can find ppl experienced with this. Parts and work are cheap, but accurate info can be difficult to come by. I used to have a KDX220 and loved it, but parts and work were difficult here, which would be an advantage of using the KR engine.
Any ideas on the viability of this idea?