Carb issue

[gsrick]

I found this site a while before I bought my bike, so luckily I knew exactly what to expect and how much help was available. It gave me the confidence to move forward, acquire the bike and know, with help, I could tackle 100% of the issues associated with a '70's GS.

It is the best place around. I've never seen another bike forum even close to GSR.

[mvalenti]

+1, GSR is great.

I will also chime in... It is worth the effort, trouble and time to maintain your bike yourself especially with the wealth of knowledge and resources here and on Bikecliffs site as well. Good Luck!

[Tbay]

Perhaps they put the wrong size needle & seat. I just dropped off the bike back to them this monday morning..... Ill keep you all informed on what they found. Ps. It may take a few days, ill keep you posted.

[allojohn]

Perhaps they put the wrong size needle & seat. I just dropped off the bike back to them this monday morning..... Ill keep you all informed on what they found. Ps. It may take a few days, ill keep you posted.

Expect more of the same bud.

[allojohn]

It is the best place around. I've never seen another bike forum even close to GSR.

True dat! .

[LAB3]

It's already been mentioned but if you want to ride a vintage bike you got to know how to turn wrenches! No experience? Find a lawnmower, weed whacker, chainsaw etc. and start there. Get that puppy running perfect and keep it running perfect for awhile. After you've gained some confidence move up to something with a twin cylinder such as a smaller bike, outboard motor, etc. Same deal, make it run perfect and keep it running perfect. By then you should have accumulated enough tools and knowledge to take on a four cylinder bike, just make sure it's not your only transportation. There's nothing worse for learning than being flustered and in a hurry.

[innerpeacethief]

this is crazy!!!! if the air/screw doesnt make a difference that osunds like the problem. pull it out and check the o-ring in there BE VERY CAREFUL NOT TO RUIN ANY THREADS! i would take it out clean it and replace o ring

[innerpeacethief]

I agree! i got my bike in december. i live in ohio so i couldnt ride! i bought a clymer and read this website pretty much every day as i went through the bike. the clyhmer even has sched. maintenance procedures .

[roeme]

(...)A 37 yr old motorcycle is not going to get fixed at the local shop.(...)

Unless the shop in question has been in the business for that long. When I started out two (three?) years ago, I had them do various work that was outside my comfort zone and/or equipment. It cost a pretty f***ng penny, but the work was always properly done.

As for the thread, everything has already been said, good luck to the OP.

[Steve]

this is crazy!!!! if the air/screw doesnt make a difference that osunds like the problem. pull it out and check the o-ring in there BE VERY CAREFUL NOT TO RUIN ANY THREADS! i would take it out clean it and replace o ring

I would not be concerned about the o-ring as I would be the shape of the tip of that mixture screw. If turning the screw makes no difference, it is apparent that it's not letting any fuel through. Could be a broken tip that is stuck in the port or could be a plugged pilot jet or simply clogged passages between the jet and the mixture screw.

.

[londonboards]

Take the fuel hose and vacuum hose off the petcock.

Open the petcock in the prime position and check fuel runs out.

Put the petcock in the on position and check there is no fuel coming out of the vacuum hose.

Flooding on one cylinder (if it's flooding on no. 2 - I can't see anywhere that you mention which cylinder it is) can be fuel leaking through the petcock diaphragm straight into that cylinder.

Four things are certain in life; Death, taxes, faulty GS petcocks and faulty GS regulators/rectifiers and charging systems.

[alke46]

Take the fuel hose and vacuum hose off the petcock.

Open the petcock in the prime position and check fuel runs out.

Put the petcock in the on position and check there is no fuel coming out of the vacuum hose.

Flooding on one cylinder (if it's flooding on no. 2 - I can't see anywhere that you mention which cylinder it is) can be fuel leaking through the petcock diaphragm straight into that cylinder.

Four things are certain in life; Death, taxes, faulty GS petcocks and faulty GS regulators/rectifiers and charging systems.

I think that adds up to five things.