Odd clunking noise when coming off throttle?#*!&?

CrazyEyes · L Plate Warrior Joined: 21 Dec 2016 Karma :

Hello all.

Kinda new to this forum but was hoping someone out there can give me some help.

So i had bought my self a cheap little lexomoto arrow 125 as a cheap work bike and so far ive had no issues its lived up to its expectations and for a chinese bike i was suprised okay few nuts may have needed tightening and replacing but hey thats Chinese for ya. Anyway back on subject lately when im travelling regardless of speed gear or rpm when i let off my throttle my engine makes a loud clunk noise. At first i thought it was something with my front wheel/mudguard but checked and nothing then i heard it again but was deffently coming from the top head of the engine or the front. Now it doesn't do it all the time mybe 5 out 10 times. I took it to a garage thst said it was fine but totally disagree i was woundering if anyone has had a similar problem any help uch apreichated. Confused

P.addy · Red Rocket Joined: 14 Feb 2008 Karma :

Let off gently or slam shut?

jaffa90 · World Chat Champion Joined: 06 Apr 2016 Karma :

I would check the chain, sprockets and tension / slack.

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

Get hold of the front of the engine and see if you can move it up and down or rotate it in the frame.

Check your engine mounts for loose nuts and bolts.

Check your engine mounts for cracks.

Check your frame for cracked welds. Especially round the headstock. Seriously. I've personally seen two Chinese 125s with cracked frames.
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