I have a buddy that has a Suzuki dr350 1991. He has always had problems starting it and it's always different. A while back he got some letter from the manufacture stating there is a jetting issue but they were vague and so was he.

Does anyone know a good site or forum I could look this up for him or anyone with experience with this issue and know the fix?

Thanks

 

TTT
No one knows anything?

 

It sounds like it is lean. check to see if the choke( enrichener ) is working. If there is a way to cover the air intake, while cranking, that will work like a choke and itll start much easier. Use your hand or a piece of duct tape, and cover the intake about 80%.
You may need to remove the plug over the mixture screw, and adjust it richer( out)
Its posible it needs a bigger pilot jet, but try those other things first.
heres a site on rejetting

jetting
Heres a pictoral on the carb
alba
Heres a dr350 site, which seems to have lots of info.

dr350
and another
dr 350
Heres a google search on that topic

google search

 

Thank you, that was what I was looking for more or less except nothing specific with an over all problem with the DR350. I did do several Google searches but did not come up with much.

Thanks again.