LifanForum.com
Lifan Motorcycle, Scooter And ATV Forum

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Topics - Pats-bike

Pages: 1
1
LF250 / Am I the only one to write about the LF250 recently?
« on: August 23, 2009, 11:47:59 AM »
Am I the only one to write about the LF250 recently? there must be others out there with some useful comments for all of us to benefit from?

2
LF250 / Xenon bulb for the LF250
« on: August 23, 2009, 11:45:57 AM »
Wow, I managed to get a super bright blue tint xenon bulb for my bike - well chuffed! Having said that I didn't get around to trying it at night to see if it was actually any good. Now this is the snag - the bulb worked for a week or so (keep my headlight on all the time for safety) and then stopped so naturally I believed it to have blown - "what both high beam and low beam" I hear you say. I removed the bulb and had a good look at it only to find that it was fine, took a look at the bulb holder and found the spring loaded plastic bit that holds the two contacts had melted - I guess the xenon bulb was running too hot. Try as I might I just couldn't find anywhere to do a replacement bulb holder whether new or second hand so resorted to making a replacement piece from very thin modelling plywood and two brass screws as contacts, bit fiddly to make but it does the job. The especially bad news is that parts for the LF250 are very hard to get in the UK which doesn't bode well for the future as things start to wear out.

3
LF250 / Inefficient rear brake
« on: July 23, 2009, 07:39:00 AM »
The rear brake on the LF250 is pretty poor at the best of times but can be improved slightly with a little lubrication. I removed my rear wheel and checked the brake actuating mechanism and found it to be devoid of any lubricant - namely grease. The pivot especially benefited from a bit of grease, though do be careful as grease and the brake linings do not go together. The thick cable coming from the foot brake lever itself was also quite dry so needed a good oiling. To minimise brake bind apply the foot brake whilst tightening the rear wheel nut - this ensures the brake drum is central.

4
LF250 / Rusty exhaust pipe
« on: July 18, 2009, 02:36:31 AM »
Has anyone else got the same problem with the under engine exhaust being badly corroded? The pipe (somewhat twisty - seems gives better balance between the cylinders) is under the bike so hence has to deal with a lot of water splash when riding in wet conditions, I'm a fair weather biker so don't go out in the rain but the exhaust is still very corroded. I'll most certainly have to remove the whole lot before winter to give it a good clean and repaint it as best as I can, been told that spray on barbeque paint works fine.

5
LF250 / Need supplier of larger front sprocket to fit the LF 250 B
« on: July 11, 2009, 06:15:22 AM »
Hoping someone can help me. Doing some research on the net it seems the LF 250 can take a higher gearing so I duly ordered a 17 tooth front sprocket (16 original) for the Yamaha Virago 250 as I've been reliably told that it will fit no problem. Well there is a problem - the Virago has a 520 chain whereas my Lifan has a 530 chain so the chain is well loose on the replacement sprocket that I got and obviously won't do. Luckily the supplier is willing to take the sprocket back but I'm having no luck with finding a supplier who can let me have a Virago 250 type front sprocket which will fit the 530 chain - any help would be much appreciated? I live in the UK but would consider ordering from the US as long as P&P wasn't too high. Thanks and all the best from Pat.

6
Have just checked and adjusted the tappets (valve lash) on my LF250 and was glad that I did!
The correct adjustment is as follows:
Inlet 0.08-0.12mm or 0.003-0.005in
Exhaust 0.10-0.14mm or 0.004-0.006in.
As the cam lobes/tappets/rockers wear normally the gap slowly enlarges as the miles are clocked up but out of the four valves (2 per cylinder - inlet and exhaust) all but one had the gap too small which isn't very good for the valve seats. I've only done 4500km since new so hope that I haven't done any lasting damage to the valve seats or valves themselves - I've tried the bike and it pulls okay so I must have got away with it. The job is quite lengthy as there are quite a lot of odd bits to be removed (seat, tank, carb cover, air filter and bits of pipe etc) to simply get at the cylinder heads but it should be within the capabilities of the average mechanical person. When removing the petrol tank the two fuel pipes (main and reserve) will have to be clamped as the on/off valve is not part of the tank. Remove the spark plugs to make turning the engine easier. On the left hand engine cover there is a slotted plug about 30mm in dia which if removed will allow you to use a 17mm socket wrench to turn the engine. For each cylinder turn the engine until the exhaust valve is just closing and the inlet valve is just opening (on the rock) then carefully turn the engine one complete turn further. This allows the tappet adjustment to be made with the cam lobe in the correct place - approximately on the back of each lobe. Each valve has its own round cover set in each rocker cover. When you come to replace the petrol tank do make sure that you don't damage or kink any of the fuel tubing as it could split - happened to me and I lost near a full tank of petrol all over the ground! Hope this helps, Pat

7
LF250 / NGK sparkplugs for the LF250
« on: April 28, 2009, 10:19:43 AM »
If anyone wants to change their spark plugs for NGK then go to - http://www.ngkpartfinder.co.uk/  accept the disclaimer and then click on - PRODUCT CROSS REFERENCE. Under Product Type chose spark plugs which then will bring up Manufacturer, under this choose CHINESE BRANDS, you can then cross reference your original spark plugs. I have just bought a couple of NGK Iridium spark plugs (CR7HIX) to see how they fair - supposed to be better running and longer lasting. Anyone else tried Iridium spark plugs as I'd be interested to hear any comments you have?

8
LF250 / Owning a Skygo SG250 - B
« on: April 20, 2009, 12:45:37 AM »
I've owned my Skygo SG 250 - B for about 6 months now and have had almost nothing but pleasure from it. The only real problem I've had is with a slight misfire in the engine caused I believe by a sticking slide in the CV carburettor. I did remove the slide once (bit fiddly as there's quite a lot to remove to just get at it) and put some light oil on it which seemed to cure the problem but of course the oil didn't last long with all the petrol around and the slight misfire has returned. It only occurs on light load throttle settings so is more of a slight annoyance really. When I get to check the tappet adjustments I'll take the slide out and polish it to see if that cures it once and for all. I'm unlucky enough not to have a garage (converted to eldest son's bedroom) so the poor bike has to live outside under a cover so the rust is appearing in a few places but mainly cosmetic at this stage and easily cured. The bike's running characteristics are great with ample power, good handling and very good fuel economy. All in all a great bike and so bladdy cheap compared to Jap stuff - Skygo 250 £1400 - Honda CG125 £2000

9
LF250 / Anyone know the tappet adjustment for the LF250?
« on: April 19, 2009, 11:53:26 AM »
Does anyone happen to know the tappet adjustment for the UK version of the LF 250 - B cruiser? Also, how to adjust the cam chain - if it has any adjustment that is? Thanks, Pat

Pages: 1