[99duc748]

Hi all I just bought a 99 748 it runs fine for about 5 mins after that when I give it gas it bogs down it will take off in little spurts .any help would be apperciated
Thanks Kevin

 

[super dooper]

Your problem sounds like it might fuel related, you can try looking down inside the fuel tank while it's running, if you see fuel being sprayed then you most likely have a split fuel line. Have you ever replaced your fuel filter? It could be clogged.

 

[99duc748]

Thanks Super
I just bought the bike 2 days ago was fine when I test drove it talked to the seller he said it had been sitting for about 7 months.I hope it is water in the tank or maybe clogged injector.Any suggution on injector cleaner I havent been on a bike for about 15 years so i'm a little out of the loop
Thanks for the help
Kevin

 

[MotorCade]

Just to be on the safe side, check your plug wells. A bit of water in there, and it'll do exactly like you described. Make sure they're very dry.

 

[Bella749]

Does bike run normal again if you open the fuel cap? Check the fuel tank vent lines to ensure they are not kinked.

 

[mia748sp]

Could be a clogged fuel filter, especially if it sat for that long. I'd clean the injectors and put a new fuel filter in it. You'll have to remove the tank and take the pump assembly out to change the filter. Remember to replace the o ring when replacing the fuel filter also. Get an extra o ring just in case. They can be a pain to change the first time.