Question about 1988 Honda VFR 400 R NC24

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Folk oil how much folk oil do i need to put in and what weight vfr400 nc 24

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Buy some measuring cups up to about 13oz ...before you start on the first fork, release air pressure then take out drain bolt and let it fill up, then pump the fork up and down to squirt out the last little bit.... you"ll get a ball park figure this way. I use ten weight oil and it seems fine, oh and you dont have to buy the expensive stuff from the dealer, any transmission fluid will work.. if you decide to fill it with air be very careful if your using a gas station hose..just give it a little squirt then check. I put in about 5 psi too much and you might blow a seal. Another thing...if its never been changed before you'll find the drain bolts hard to remove..i used an allen with small extension tube to give it more leverage.

Posted on Sep 16, 2009

Testimonial: "thankyou very much the solution you sent me i found it to be very helpful astheir is no manual for nc24 cheers ian"

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Fork seals gone on honda nsr 125


280 ml on the older models, and 320ml on the newer models.
1. you need to elevate the bike with a jack or something so the front wheel is off the ground.
2. undo the Allen bolt on the side of the fork, then proceed to take the main wheel socket bolt/bar out, so the the wheel comes off, the speedo drive will come off leave that hanging around lol.
3. take of the socket bolts attaching the brake caliper to the fork, dont leave it hanging secure it somewhere, so you dont damage the brake cable tube.
4.take handle bars off, one allen bolt on each one.
5. then unscrew the the 2 socket bolts that hold the folks on, if you follow the folks down you will see 2 socket bolts take them out. do the same on other folk.
6.then pull one folk at a time down, maybe tap it if its hard. and you will have the folk out in your hands.
7.unscrew the big socket bolt at the top of the folk out, but apply pressure, sometimes the bolt will fly off, so be careful.
8. take the big long plastic tube out along with the spring, and tip the folk upside down and pump it to get most of the oil out.
9.then go to the bottom of the folk and undo the allen bolt, when its moving around freely and not coming out put the spring in and push down and twist the allen bolt should come straight out.
10.pump it a few times and then you take the folk tube out completely and give everything a clean, it will be stiff when you get it near the top so get momentum and yank hard and it will pop out.
11. then the bottom pit of the folk that the tube goes into, if you look into it you will see the oil seal, take the cur-clip out and it should come out pretty easily.
12 give the folk tubes a rub down with fine sandpaper say 1000 grain or 800 grain, to get rid of little bumps, look carefully feel it with your hand, to see if theres any pitting, you will be able to see it, thats not good but make sure its not on the part of the tube which goes up and down the oil seal when compressed down.
13.put folk tube back in the bottom of the folk, then put spring in puch down tighten allen bolt.
14.put new oil seal on and push it down its best to use a oil seal hammer tool thingy, but if your careful you can tap it down with a hammer and something small and flat at the bottom, i used a bolt, worked well.
careful dont damage the oil seal.
15. put cur -clip back in, it should click, make sure its on the closest ridge to the oil seal.
16. put 280 ml, of oil or if you have a newer model 320ml, of fork oil in the tube, pump it a few times to get air out and oil to the bottom chamber.
17. put the spring back in and the long plastic tube, and put the top bolt on for now not to lose not to tight.
18. attach the folk to the bike again and same with the other one, make sure you align the little ridge on the top of the folk, with the top of the steering bar, the top steering the bar the folk go into last. its late lol getting confused lol. oh and when y0ou align make sure you tighten the bolts holding the folk in place.
19.then put the steering grips/bars back on and then tighten the top bolt tight cant remember the torque setting. then you know everythign from there. phew

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1 Answer

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Jan 06, 2010 | 1988 Honda VFR 400 R NC24

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Jul 11, 2009 | 1988 Honda VFR 400 R NC24

2 Answers

Oil pressure


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Buying a 1988 vfr400


Hi and welcome to FixYa,

Most used 400s are ridden hard eitheras a starter bike or forced to max out playing catchup with biggerbikes. But unless abused, they tend to have longer usable life than thebigger ones. For a VFR400 (NC24), areas that would need your attention/check would be:
  • was it imported to Australia by Honda or is it a gray bike? If it is a gray bike, then it would most likely be a Japanese domestic market/model that has a 180 km/h (110 mph) restriction;
  • rear suspension - the NC24 was one of the first production bikes with Pro-Arm single-sided swingarm;
  • listen closely to the "whine" sound from the engine. It should sound healthy not raspy. This is specially true for VFRs because the camshaft are driven by straight cut gears. This model does not use a timing chain or timing belt.
Common areas to check:
  • condition/level of the engine oil. An oil change would do no harm;
  • brake pads (front & rear);
  • carbs and tank condition, A rebuilt/clean is a wise action;
  • sparkplug check/replacement. Note the color/condition of the ends of the plugs;
  • valve check/adjustment;
  • electrical system check which includes battery/terminals, major connectors (high amperage), regulator, lights, switches;
  • chain and sprocket. If adjusted against the stops, might be time for a replacement of the set;
  • fork oil seal.
Even if there are somethingsyou feel like needing work, the general judge wold be how you likeriding the bike. Your body, sense of balance and riding style woulddictate which if ever would need priority work/replacement/checkingover.

Pls post back result(s). Good luck and Thank you for using FixYa.

Jan 16, 2009 | 1988 Honda VFR 400 R NC24

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