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Hi something thats happened to my bike and a friends bike in sydney....top and bottom engine bolts snapped and i only found this as the bike was getting hard to change up the gears. ive contacted CFMOTO australia about this and they haven't heard about this but other bikers should check theres before something bad happens. the standard bolts are high tensile.
I replaced mine with stainless steel high tensile bolts and new nylon lock nuts.
Thanks for posting how many KM has you bike done ... cant make out the picture what side of the engine is it on and could you post a picture back a bit so we can all make out what side the picture was taken please
Hi my bike had done about 4000kms and it the left side...bolt is under gear lever. you can see by the elongated hole it had been snapped a while.
my riding style is sometimes slow arse...and sometimes i ride like i stole the bike..lol but either way bolts shouldnt break!!
alex
Thanks AlexQuote:
Originally Posted by pommie
Loads of bolts on chinese bike break i have had on my CFMOTO Jetlux 250cc maybe 5 bolts gone now its all apart of buying a chinese bike when i find one gone i just change it like you with a SS bolt with the cheap makes of chinese bike we go round all the bots to check them and the importance ones we take out and use loctite 243 ...but you are right should not happen
Was it originally a hex or regular head bolt that went? What approximate length?
Hi ZMC888Quote:
Originally Posted by ZMC888
yes it was the hex bolt head that snapped off 200mm..i think my bolts are made out of bamboo...will add some pics later of them
alex
OK, you're doing a great service to other owners with this info, thanks!
No probs ZMC888 happy to help
here are my bolts that snapped and got damaged.. CHECK YOUR BOLTS!!!!
Attachment 13435Attachment 13436Attachment 13437
That should be enough reason for a recall for any other then a Chinese manufacturer.Quote:
Originally Posted by pommie
Pretty ridiculous.
Just cheap bad steel like most things in china back in the UK Tesco would say "stack them high sell them cheap" but goods was ok but here in China " Its make them bad stack them high sell them cheap "
I love this place
Quote:
Originally Posted by 998S
RECALL what does that mean !
never heard that word in china TIC
CFMoto did a recall on my Jetmax maxi scoot within the first couple of weeks of ownership. I got a call to take my bike back to the dealer, and a CFMoto techie turned up and completed all the swapouts. My Jetmax was off the first production run, while a mates was from a subsequent run so no recall was needed on his scoot.
I called cfmoto Australia and I was told they contacted cfmoto china regarding this issues....and the response was (which I had to follow up)
CFMOTO CHINA/AUSTRALIA this is not an issue as they have not heard anything about this yet!!
I know of 3 bikes in Australia that have had snapped bolts...I replaced them at my cost, high tensile bolts $8 each and new nyloc nuts
alex
Hey Alex, I've not seen any CFMoto 650 over here in PRC with any snapped bolts, especially engine mounts. I've owned three CFmoto's since 2005 and have two in my fleet currently (Jetmax, 650TR), but then I ride each bike as designed, and take it easy where necessay on the rough stuff, avoiding potholes where possible etc. Not that I am suggesting anyone here isn't, but I do know one guy (a mate) who frequents this forum from time to time, who treats his CFMoto scoot, like a enduro bike...
I also read the PRC Chinese motorcycle forums, and I cannot recall any 650NK/650TR rider/owner complaining about snapped bolts/engine mount bolts. Therefore the response via your dealer from CFMoto company seems accurate/predictable - "it's not been an issue " and "first they heard of it". If you have photos of all THREE bikes with broken bolts, then send (PM) me them and I will get in touch with CFMoto directly.
Quote:
Originally Posted by pommie
Hi Alex,
Thanks for posting your issue, can you tell me where you bought the replacement high tensile bolts/what brand etc?
In in Sydney and have just found two snapped bolts on my 650NK that hold the motor in, need to replace and would like to buy quality items.
Brendan
Hi brendos....ive text friend in sydney (brookvale area) and ask where he got his bolts from. But in the mean time call a few bolt suppliers and ask for cost of high tensile M10 200mm long with 140mm shoulder and nyloc nut..if they help im happy to get you some from adelaide and send to you.
alex
Thanks Alex, Ill try and find the spec you mentioned (high tensile M10 200mm long with 140mm shoulder and nyloc nut.) and post how I go once Ive found a supplier in Sydney in case anyone else is looking for it. :thumbsup:Quote:
Originally Posted by pommie
the shear problem might come from wrong or not applied torque to the bolts.
a) too less or no torque = shear forces are higher than clamping force. (deadly for a bolt)
b) Too high Torque = material yield strength is exceeded (ductile deformation causes again effect like a) )
pay attention to the correct torque!
in german we say "nach fest kommt ab" which means " after exceeded tightening next is snap"