DRZ400SM countershaft nut fix
Vložit
- čas přidán 15. 01. 2022
- this is a video showing you how to fix a loose counter shaft nut on a 2018 Suzuki drz400sm I have stock sprockets and stock gearing this should work if you have a same style aftermarket front sprocket hope this helps you if any other questions please post them in the comments down below!
Thank you for the video. It was clear what will need to be done when I attempt it. I am doing it for preventative maintenance .
Much appreciated!
Instead of the wood block, you can step on the rear brake with force, as you reach over the bike and torque down. Works good.
Thank you for the video! NOTE: DR-Z400SM 0:58 30mm for counter shaft drive gear socket nut :) I thought I was loosing it seeing the forums & other folks getting the metrics wrong! I admit my shame & must confirm your warnings in the vijeo^. 0:12 READ MORE, pls....
* *
IF you snap/break/loosen/loose/etc. the chain [at speed] (in either direction) YOU WILL shit-yourself, split the engine case + shear the gearbox off, snap the rear swing-arm, collapse the sub-frame plus loose half a leg -please google it...) I have stupidly tried this twice in an afternoon -please read below-
* *
I do suggest an alternative to the more popular fix with colored 'glue' [Loctite or Permatex etc that may work for some models of DR-Z400SM with the hollow shaft-drive end (not all models...)
Properly threading the inside counter shaft void [not ghetto style] (for me: approx 26mm deep - M10x1.25mm check your shaft model) will allow you to screw a light-walled stainless steel M10 bolt -I used a brake fluid bolt- securing the sprocket assembly while allowing ease in disassembly & allowing an additional race-inspired retaining wire! This is ideal for anyone who happens to change the front sprocket very often, say half way through a ride from dirt to city to mud.....
There is only one point you touched on that I would propose a counter: If the end of your drz's counter-drive-shaft is not snapped off (like so many out there), the drive nut will not necessarily be lost forever. The nut can be just-about balanced between the shaft_tip & all the grease built up against the engine/sprocket cover 0:16 PLEASE DO LISTEN TO 1:52 **AS LONG AS YOU KEEP ALL [OEM]** sprocket Cover(s) & **ALL [OEM]** CHAIN GUIDES 1:55. This 'can' be left balancing for a few rides before you kill yourself [or not] assuming proper assembly of chain guide,+engine cover+(1 start>>) shaft-drive+(2)retainer-seal/spacer c/w bolts+(3)engine["front"]-sprocket+(3.5)spacer-rubber-bit[included with fancier sprockets, but not all jobbers]+(4)lock-washer[correctly said 4:30]+(4.5)washer[if needed]+ (5
Doing some research on this topic, I recently bought an used 2019 DRZ and it has the same issue. I think the real reason people are worrying about is the potential of damaging the countershaft spline from the sprocket because the nut is loose. I am reading some thread on thumpertalk that says something about a compressed spacer behind the sprocket that is causing this issue. I don't see how the loctite is going to solve this problem. I feel if you check the torque again in another 5k miles, it will have the same issue.
ill check the nut when I do my next oil change to see if its lose.
The nut tightens sprocket against 2nd gear bushing inside the crankcase, and when sprocet rocks back and forward it rotationally wears and mushrooms that bushing until it welds itself to 2nd gear and locks up your transmission. Suzuki tried to fix it with reccomending more torque and making the countershaft walls thicker in order to not break under tension, but the torque of the engine and engine braking is much stronger, so it damages the bushing faster with increased load. To fix that you should loctite the sprocket to the splines, but not too much because it can damage seals behind it. As bushing becomes thinner the load on the nut decreases so you think it got loose. Of course in some cases its also the nut that unscrews itself so you should loctite that as well and use new safety washer. If the splines on the sprockets are worn loctite fix wont work
@@domenjeram9180
What will happen if the nut is not tight ?
@@colingrogan1401I'm curious to know if you've checked it since you did this. Please let us know!
So how does the nut come loose if the tabs on the washer are bent over the flats of the nut??
I've been told it's better to have someone hold the rear brake when torquing the nut instead of putting it in gear. Something about breaking stuff inside the transmission. But then I got to thinking... People push start these pretty often and that doesn't seem to hurt anything, so I dunno.
I have 2011 suzuki drz400s but can find the washer and the nut?.. do u know a site or the link to order one
What happens if the nut is left the way it came from the factory ?
Is it easy to loosen the nut with red loctite? Forums say to put the red loctite on the shaft ?
Not at all. You need to heat it with a torch to remove after using red loctite
What size is this nut ? I know it's metric
30mm