just got myself a km baja

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, and others.
hyper 78

hyper 78

Well-Known Member
Messages
962
Reaction score
2
Location
nottz.
hi guys, yesterday i was offered a km baja 001 for a great price, a friend of mine brought it brand new 2 months ago,he uprated the pipe with the dom clone and a few extra bits,it has only been ran 2 times ( i know because we bash together) probably just over 1 hours use.it has bearly been run in.I have read up on these and know the diff, pullstart and shocks arnt the best,but i can replace them with aftermarket parts when needed.I haven't had a chance to use it yet but i know they handle extremely well, and its quick,the pipe seems to have added alot of power!!! it doesn't seem to be as solid as my fg's but they look and drive awesomely.I cant wait to take it out.
I brought it with evertything ready to go and a few extras,all for the grand total of 200 quid, i feel i got a bargain!!!!
Does anybody who owns one of these have any advice on these buggys, one thing i have been told is to make sure all the screw and nuts are tight.
Thanx in advance.
https://www.largescaleforums.com/picture.php?pictureid=1164&albumid=168&dl=1309621969&thumb=1

https://www.largescaleforums.com/picture.php?pictureid=1166&albumid=168&dl=1309621969&thumb=1
 
Last edited:
well done thats a very good price, give it a strip down a check all nut and bolts, i think the inner diff casing is plastic these can split causing the diff gears to blow, replace the plastic casing with a alloy k,m one only about a tenner, the pullstarts are a bit weak i,ve had a zenoah one for 2 years and its still going strong, as for shocks wait untill they bend the replace them, the dom copy pipes are very good for low down power i run one with a standard 23cc motor , but do watch out if your jumping the pipe is prone to hit the floor and snap the head by the exhaust port some people mod them by cutting the header pipe and putting a piece of silicone high temp hose in the gap ,
 
Thanx for the prompt reply pablo.Yes , i have a friend that did the pipe mod, but no matter what he did,it kept on melting the hose, he has now rewelded it.the km i have is 23cc,I have also have a zen 23cc head that i took off the marder when i installed the 29 bb kit, will the zen 23 go straight on??? I have heard that the engines are supposed to be cy but arnt ,can you shed any light on the manufacturer,any good/bad points and the supposed power from the engine? anyway have just bound it to the tx and will try it out tommorrow, thanx again.
 
i is a bit risky cutting the pipe, i did think about doing it myself but just decided just not to jump,lol i,ve rebuilt a k,m motor the only real difference is the clutch casing is moulded on to the engine casing ,the zenoah head will go straight on, i,ve built a few k,m motors and never realy had any problems the plating on the heads is,nt the best but neither is the c,y plating either. you won,t go far wrong with a zenoah i run a standard g230rc with the dom pipe and it flys, try to make yourself a chassis brace the front of all baja,s hpi and clones is a major weak point i,ve seen them bend with the smallest of bumps here,s a pic of my brace its burly to say the least,lol
 
Last edited:
km engine

hi , if i replace the km 23 cc for my zen g23, will it produce more power or are they identical? cheers
 
Got my buggy< checked everything - fired her up and the oil just pissed out the motor. Stripping her down I saw a gap of 1mm between the two bottom casings, all the screws were tight. Very bad machining!!! Had to dump the 29 for a ZEN 26. After that the left dog-bone parted- sorted that out, next the left inner bead-lock lost all its screws. Now that is sorted and it is going GREAT. So, after all the money I saved-it actually cost me more!
 
the k,m motor and the zenoah would be about the same power, but zenoah,s are a lot better quality you can pick up a good g230 on ebay for about £60 i allways look on the f,g page on ebay there is quite a few zen,s for sale, a decent pipe can unleash a lot of power even with a standard 23cc motor. i,ve killed quite a few motors and they,ve all seemed to be c,ys .
 
pablo said:
the k,m motor and the zenoah would be about the same power, but zenoah,s are a lot better quality you can pick up a good g230 on ebay for about £60 i allways look on the f,g page on ebay there is quite a few zen,s for sale, a decent pipe can unleash a lot of power even with a standard 23cc motor. i,ve killed quite a few motors and they,ve all seemed to be c,ys .
Click to expand...
hi, yes i always check FG on ebay as i have a few fg's ,i already have a mint g23 top end, its just i know the cy 23cc is 2.5hp and the zen 23cc is 2.8hp, i read somewhere the clone 30.5 only produces 2.3 hp???? which is a very low figure for a 30 .5, makes me wonder!Anyway ive used the baja km twice and its wicked, no breakages of yet and like ive always said ' it handles so much better then my fg marder.
Im thinking of puting the zen and a spare walbro 603a on it. the cheapo copy carb seems to make the baja lag on bottom end,quite boggy, but i have adjusted the top, might need some taller gears.
 
Last edited by a moderator:
good buy there matey, nice expanse of land too to run it on!

i've got a zenoah 23cc cylinder too, when i got my baja it came with a DZY23cc, i was thinking about changing the top end wondering the same thing myself about the power increase. so i changed it and it works perfectly! the performance difference is hardly noticeable, it revs alot more eager than it did. the machining was alot neater than the DZY's too. not sure if the DZY is the same machining as your KM engine??

i also had a CY29cc complete engine, i came across a zenoah 29cc cylinder and decided to change it over. when comparing them, the machining was of equal quality. it wasn't until i had it apart and compared the two cylinder liners' side-by-side, looking up into them, and they were ever so slightly different in their arrangement inside. the zenoah porting (looking up inside) was slightly larger, but situated at a different angle (if u see what i mean) compared to the CY's. so, that mean't the CY bottom end (porting around the top of the crankcase) would not match the zenoah's head.
i decided to fit it anyway wondering what the result would be or if it would fire at all (as it only takes a few minutes) and try it...i pulled and pulled and pulled so many times, it wouldn't fire at all. so, it now has an original CY head back on it and it works fine.

i think from all of this, all the different names which we see appear on these engines can probably be matched to a certain manufacturer, ie: a DZY engine has the same machining as a Zenoah so parts can be exchanged as my 23cc engine proved, and a CY cannot be mixed with a Zenoah :(
 
t2boats said:
good buy there matey, nice expanse of land too to run it on!

i've got a zenoah 23cc cylinder too, when i got my baja it came with a DZY23cc, i was thinking about changing the top end wondering the same thing myself about the power increase. so i changed it and it works perfectly! the performance difference is hardly noticeable, it revs alot more eager than it did. the machining was alot neater than the DZY's too. not sure if the DZY is the same machining as your KM engine??

i also had a CY29cc complete engine, i came across a zenoah 29cc cylinder and decided to change it over. when comparing them, the machining was of equal quality. it wasn't until i had it apart and compared the two cylinder liners' side-by-side, looking up into them, and they were ever so slightly different in their arrangement inside. the zenoah porting (looking up inside) was slightly larger, but situated at a different angle (if u see what i mean) compared to the CY's. so, that mean't the CY bottom end (porting around the top of the crankcase) would not match the zenoah's head.
i decided to fit it anyway wondering what the result would be or if it would fire at all (as it only takes a few minutes) and try it...i pulled and pulled and pulled so many times, it wouldn't fire at all. so, it now has an original CY head back on it and it works fine.

i think from all of this, all the different names which we see appear on these engines can probably be matched to a certain manufacturer, ie: a DZY engine has the same machining as a Zenoah so parts can be exchanged as my 23cc engine proved, and a CY cannot be mixed with a Zenoah :(
Click to expand...

yea ive allways found that dzy motors are allmost identical to zenoahs, i ran a dyz 23cc for a year and it never missed a beat.
 
t2boats said:
good buy there matey, nice expanse of land too to run it on!

i've got a zenoah 23cc cylinder too, when i got my baja it came with a DZY23cc, i was thinking about changing the top end wondering the same thing myself about the power increase. so i changed it and it works perfectly! the performance difference is hardly noticeable, it revs alot more eager than it did. the machining was alot neater than the DZY's too. not sure if the DZY is the same machining as your KM engine??

i also had a CY29cc complete engine, i came across a zenoah 29cc cylinder and decided to change it over. when comparing them, the machining was of equal quality. it wasn't until i had it apart and compared the two cylinder liners' side-by-side, looking up into them, and they were ever so slightly different in their arrangement inside. the zenoah porting (looking up inside) was slightly larger, but situated at a different angle (if u see what i mean) compared to the CY's. so, that mean't the CY bottom end (porting around the top of the crankcase) would not match the zenoah's head.
i decided to fit it anyway wondering what the result would be or if it would fire at all (as it only takes a few minutes) and try it...i pulled and pulled and pulled so many times, it wouldn't fire at all. so, it now has an original CY head back on it and it works fine.

i think from all of this, all the different names which we see appear on these engines can probably be matched to a certain manufacturer, ie: a DZY engine has the same machining as a Zenoah so parts can be exchanged as my 23cc engine proved, and a CY cannot be mixed with a Zenoah :(
Click to expand...
yh, i have a zen 23 in my fg touring,zen 23 fg mt, they are geat, i also have a zen bottom end with a cy 28.5 in my marder,that is ewasily the most powerful and ha ran great for the past 5 months, really came to life after the 5th tank.
Anyway the reason i was thinking of swapping heads was because i have 17/57 gears(standard) and have seen bajas pulling 50 mph with this ratio but my km will only do around 40, i thought id get more as i have the dom clone tuned pipe!my marder can pull 54mph on a standard 28.5 with jetpro, then again the km has only had 3 and half tanks thru it, maybe still a bit more to come, like i said my marder got full power after around 5/6 tanks!
 
the carb on the DZY 23cc had a sleeve fitted to its apature, it was so much narrower than a carb found on say a zenoah or CY. this narrow port limits the amount of air and fuel travelling through, with this lower amount of mixture available it therefore limits how high up the rev range the engine is capable of reaching. more revs = more speed! have a look on ebay and look for a bigger carb and block (the bit inbetween the carb and cylinder head), i got an 813walbro, makes a nice difference :)
 
i have a spare 603a, have just put it on but didnt think to put the matching manifold block,will take one off my touring car as i never get time to run that.cheers for info guys,the km is so different to my fg's,its all abit new,talking new ,i should have a mcd rally in a few days,hopefully lol.
 
t2boats said:
yeah i like the baja's, they soak up the bumps so well. my FG's have always been so figity on the bumpy stuff, so i changed the shocks to a longer set, they're magic now! the carb block - i have a zenoah block which i noticed was again, slightly larger bore than the DZY's. they're on ebay, or here:
http://www.freeprawnracing.co.uk/zenoah-carb-insulator-block-z1148-13162.html
Click to expand...
I agree, if i tried to do that with my fg marder or mt , it would have grip rolled.but then again, id say fg's are better in other ways.I have set the marder up with lower suspension now for more tarmac high speed runs, suits the car better. Yes freeprawn a good shop, i know nige who owns it.
Talking of the carb block on the km, is that the same size as a zen/cy.
 
hyper 78 said:
Talking of the carb block on the km, is that the same size as a zen/cy.
Click to expand...

err, i dunno mate, not sure what engine comes with a KM?? there's bound to be someone on here who knows what the engine's based on... just compare the KM carb block to the one's you have already on the FG's. :)
 
Back
Top