Question about 2004 Suzuki RM-Z 250

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I have trouble with the chain tighteners on the rear swing arm seizing up which causes the heads on the bolts to round off. I have just managed to break off the bolt on the brake side. What is the best way to remedy the problem and prevent it in the future?

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  • Suzuki Master
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Use some grease on the threads and lock nuts. Make sure the axle and lock nuts are loose before trying to adjust the bolts.
The bolts really only set the chain and wheel, until the axle is tightened,
grease the axle as well.

Posted on May 07, 2010

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Posted on Jan 02, 2017

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How do you take the swing arm off of a 1982 harley davidson


Raise rear tire off ground. Loosen chain adjusters, loosen and remove axle nut and remove axle. Remove chain from rear sprocket. Remove bolt from lower shock mounts. Loosen nut on swing arm and remove swing arm bolt.

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    • 1 Measure the chain's tension with a ruler. Move the center point of the bottom half of the drive chain with your hand. Take a measurement of the chain's movement as you push the chain up and down as far as it will go. The chain should have a free range of movement between 0.8 to 1.2 inches. If the chain's free range is greater than 1.2 inches, you need to tighten the chain. Alternatively, loosen the chain if it has less than 0.8 inches of free movement.
    • 2 Loosen the large nut on the left side of the rear axle with a 32 mm socket and a socket wrench. If more leverage is needed to loosen the nut, use a long-handled breaker bar.
    • 3 Loosen the chain adjuster blocks on both side of the rear swing arm with a pair of 10 mm wrenches. Hold the blocks' adjustment bolt's head steady with one wrench and loosen the bolt's lock nut with the other wrench.
    • 4 Turn both adjustment bolts an equal number of turns with a 10 mm wrench to adjust the chain's tension. Turn the adjustment bolts clockwise to loosen the chain, or counterclockwise to tighten the chain. Check that the edge of both chain adjuster blocks are evenly aligned with the adjustment marks imprinted on the swing arm.
    • 5 Check the chain's range of free movement again. Make adjustments as needed until the chain has a free range of movement between 0.8 and 1.2 inches.
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Jan 15, 2013 | 2004 Suzuki GSX-R 750

1 Answer

I have aligned the chain (every couple of months I have to tighten the chain , does it stretch that much!) and when I'm driving the chain noise is louder than the engine . Is this normal??


Raise the rear wheel off of the ground. Spin the rear wheel by hand while running the chain over your hand (wear a surgical glove or use a rag). If the chain gets tight and then loose it has stretched and needs to be replaced. If it is an older Honda (70's), unbolt the rear shocks and see if the swing arm moves from side to side. If this is the case you also need new swing arm bushings. Another sign that the swing arm bushings are bad is if the chain is banging against the swing arm while you are driving down the road.

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Okay. Thanks to Guru, the handlebars were easy to fix. Maybe shouldn't try to ride this thing daily on the road, because now the chain came off. I put it back on, but need to see if there is an easy way...


hi, it sounds to me like the bike has been ridden hard and needs the chain replacing due to it strecthing. on the swing arm at the back is their two bolts sticking out the end of each swing arm their should be one in one side of the swing arm and one in the other side of the swing arm, this is right at the very back of the swing arm.
if you find these then these are the adjusters for the back wheel you then need to loosen the back wheel bolt but dont take it out then adjust these adjusters by the same amount do it in half a turn a time you need to do both the same else the back wheel wont be level keep tightening them in and this will then pull the wheel back and this will tighten the chain if its all ready adjusted fully then the chain is scrap and needs replacing, if you dont have adjusters then the chain needs replacing, it will keep coming off if its slack

you can cause damage to the bike if the chain comes off whilst riding at speed so it may be best to get the chain before you use the bike



Aug 15, 2010 | 2004 Suzuki DR 200 SE

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Assuming its the same as a 900.
loosen the 2 allen bolts at the rear of the swing arm. loosen the brake lock bolt,so the caliper can slide as well.
Turn the large cams that the axle bolts through to move the wheel back or forward., make sure the adjustment marks line up the same.
It can help to loosen the axle nut first, if you are having trouble getting the left and right adjustments the same.
dont forget to tighten everything up again and replace the axle circlip,

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U shud go to yor deeler and tel hum dat u kneed duh chain ajusment bolt, hee wil no what u kneed.

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How do i tighten the chain on 2002 yz250?


  • Loosen off the axle nut (B) until it is only lightly tightened. Wind out the chain adjuster bolts (C) evenly on both sides until you reach the desired tension. You will see the top of the chain rise as you wind out the adjuster bolts.on pic below

Once you reach the correct tension, make sure both sides are evenly spaced (using the marker grooves on the adjuster blocks). Squeeze the chain against the swingarm with your hand to hold everything in place and tighten up the axle nut.Tighten up the chain adjuster lock nuts. Now you're ready to ride!
  • Tighten up the chain adjuster lock nuts and thats it buddy measure the chain on the swing anr amr it should be 45mm slack on the swing and arm where the chain slider is 54159bf.jpg

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2 Answers

How to tighten a loose chain


To tighten a loose chain you need to pull the cotter key pin from the rear axle then loosen but do not remove the nut. It just has to be loose enough to slide in the swingarm. At this point there are tension adjusters on the ends of the swing arm you tighten them to take the slack out of the chain. NOT TO TIGHT! You should have 1 inch of play in the chain this is up down play not front to back. I push the chain up the highest it can go and measure how far it falls. NOTE: TURN THE TENSION ADJUSTERS THE SAME AMOUNT THE SAME DIRECTION IF THE AXLE IS TWISTED YOU WILL THROW THE CHAIN. This can make for a bad six months!

Aug 19, 2009 | 1998 Suzuki VZ 800 Marauder

1 Answer

How to tighten the chain


Loosen the rear axle nut mounting the wheel to the swing arm, then loosen the lock bolt on the top of the chrome adjuster ( left and right adjusters ), then loosen the lock nut on the long adjuster screw. Run the nut about 1/2" down the length of the adjuster screw. Now turn the adjuster screws equally in a clockwise direction to remove the excess slack from the chain. There should be index lines on the swing arm that the single index line on the chrome adjuster is referenced to. Example; If the chrome index line meets up with perhaps the fourth index mark on the swing arm on the left side, the right side should be at the same position. This keeps the wheel in alignment. When the adjustment is finished tighten the axle nut then tighten the adjuster lock nuts and then tighten the lock bolt on top of the chrome adjusters.

Leave some slack in the chain. Mid-chain you should be able to move the chain up and down about one and one half inches. If the chain can be lifted at the rear sprocket it is too loose. Lubricate the chain and the control cables on the bike. What condition are the front and rear sprockets in? The teeth should be bluntly rounded at the tip. If the teeth are sharp at the tip, or getting that way, then the sprockets are way past time to be replaced. Note that a worn sprocket can quickly ruin a new chain.

Please top rate this solution. Thanks!

Jun 04, 2009 | 1981 Suzuki Gs 550 L

1 Answer

Drive chain adjustment


To adjust the chain you need to make sure you make the adjustment with the swing arm parallel to the ground, (this is the tightest point in the arc of the swing arm moving rotation), at that point you want to be able to put two finger between the chain and the swing arm at the swing arm pivot bolt. This will insure proper adjustment every time. The best thing to do is have somebody sti on the bike off the stand to make sure the swing arm is at its MAXIMUM arc, otherwise you stand a significant chance of over tightening it and this can and WILL cause SERIOUS damage to your engine. You will rip the output shaft bearings out of the center cases.
You also want too make sure you have proper wheel alignment as well. There are marks on the rear of the swing arm for adjusting the chain, make sure you have the marks on the adjusters in the same location on BOTH sides of the swing arm.
Please let me know if you need further assistance.
Regards,
RSelvy

Dec 17, 2008 | 2005 Suzuki RM-Z 250

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