My mate needs some help with his bike, anyone?

[BlackStallion]

My mate has a Suzuki GP 125, an 82 model, so it's really old but looking at it, it's in mint condition for its age.

He has a slight problem which probably occurs on any bike, so hopefully someone will be able to help.

His fuel tap used to leak, and his bike used to die out every time when starting it up. He held in the clutch and slipped it into 1st, and it just died out, all the time.

He now has a new fuel tap fitted, and the problem seemed to have gone away, but now there's no leakage of fuel from the tap, and the engine still dies out on odd occasions.

He warms it up, uses the choke when needed to, and when he knocks it into first... same again, dies out

Any help would be greatly appreciated

Cheers

[Dalemac]

Sounds electrical to me.

My advice would be to strip the electrical connections, clean them with some wet and dry paper and water to remove rust. dry them and put them back together.

most likely problem is the sidestand switch if it has one.

PS this should be in the workshop section
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YBR125 -> GPZ500S -> SL1000

[BlackStallion]

Cheers Dale

My mate has just checked over, and his spark plug is all black? Which doesn't make much sense as he only bought it like a week ago brand new....

Anyhow, he's actually replaced it with another new one and now it seems to be working fine, ticks over nicely, idling speed is all good and when you slip into first it doesn't die out

If any problems persist though, i'll make sure he gets his electrics checked over

Thanks for the help mate, surprising that it was the spark plug, last thing we thought of due to it being new.... Do you have any idea why it was black?

[tutton]

Running rich, too much fuel, could be if hes been keeping it on choke alot when it dosnt need it, otherwise carb needs rejetting.
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Past: '05 Peugeot XPS '99 Aprillia RS125 '94 FZR600R
Current: '02 ZX636 A1P '51 CCM R30

[blutonium92]

a good strip down and clean of the carbs would do it some good, proper balancing of them aswell
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Now - Ducati 748, Laverda 650 Sport
Had- 56 Aprilia RS50, 03 Aprilia RS50, Hond VFR 400 NC30, Aprilia RS250, Suzuki SV650

[tutton]

[Finglonga]

[BlackStallion]

[tutton]

Its a single cylinder bike so will have one carb, just whip the float bowl off the part at the bottom after draining using the lowest drain screw, then using carb cleaner clean the parts inside, making sure all jets etc are clean, a squirt of compressed air also helps alot.

You cannot balance 1 cylinder as there is nothing to balance it against..
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Past: '05 Peugeot XPS '99 Aprillia RS125 '94 FZR600R
Current: '02 ZX636 A1P '51 CCM R30

[st3v3]

It maybe won't be electrical if it starts and runs until he put's it in first, it seem's more likely to be clutch/gear related.

[tutton]

It could be electrical steve
correct us if wrong but is a sidestand switch thats wanked not electrical, possible the switch is saying its down all the time if the sensor is awol. possibly...
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Past: '05 Peugeot XPS '99 Aprillia RS125 '94 FZR600R
Current: '02 ZX636 A1P '51 CCM R30

[st3v3]

Stand corrected.








I'm joking, I don't know F all about the issue, just a random long shot guess.
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Roger wrote: Women don't get damp for clingy puppies. Get some better happy pills, hit the gym & buy a medallion the size of a dinner plate. Job done

[cyberglass]

check he is using decent 2 stroke and not the £1 cheapas lawnmower stuff

Used some cheap £1 stuff in my dt years back and it killed every plug within a few miles... took a fair few plugs till i found the problem.

may also be a faulty sidestand switch if it only dies when knocked into first
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DL650 Vstrom 2004
DRZ400S 2003
Yamaha R1 2005

[qarka]

I had the exact same problem, turned out to be the sidestand failsafe thingy. I simply cut the wires, twisted them together, drowned them in electrical tape and hid them behind the battery
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[k0be24]

hi everyone.. ive been riding my cbr250rr for about 6mths now and im thinking of upgrading my bike to a bigger 1 i always want to get a 1000cc but some people told me to get a 600cc first coz they said 1000 is to powerful for me at this stage but my thought is im not gonna use the power that much anyway so pls. i need some help and feedbacks for the guys out there that had done from 250 to 1000..thanks guys