Accelerate problem

Jacob nicholas

XS650 Member
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Latrobe, pa
hey so I’ve had this project for awhile made some big changes it’s almost done now. So for the problem it’s running and shifting perfect but sometimes it’s running at a constant velocity and won’t accelerate no matter how much throttle I give it. It’s only like if I’m going up a slight incline I have no clue what it could be cuz it’ll get random spurts of power and then stop again. Then it’ll run perfect. Why. I can’t take it on the highway like that
 
Clutch slipping under load maybe?
I finally figured it out. It was the carb. The right side wasn’t running gas through it at all :) now it runs like a charm. Do you think a bike this old would be able to handle and hour ride? A couple of people at work are tryna plan a ride to Ohio Pyle soon
 
Okay sweet I was just curious as per the fact they are air cooled and I’ve never got myself involved into air cooled much. Everything I ever had was antifreeze. Liquid cooled. So I wasn’t sure if the slow backwoods riding would matter
 
There's nothing inherently bad about air-cooled engines. By far the majority of the hundred of millions of motorbikes ever made were air-cooled and some cars too (most notably the Beetle). In principal these bikes should run all day. When they were made people commuted, went on holiday and all the rest. They were far more likely to be working bikes than motorbikes of today.

Of course if your bike has never really been used and tested, who is to say that there isn't some 40 year old bit of wire that isn't going to short out or some bit grit isn't going to move from where its quietly been sitting for the last 20 years and block a jet? But if you mean, "Is my bike going to grenade just because its old?" Well, no.

The only way you'll know is to try it. If you manage to shake down some gremlins your bike will be more reliable than before. Have a great trip.
 
Thank you. I appreciate that little bit of history as well. I’ve been test riding it around. Waiting till Wednesday for my brakes to get here. And then it’ll be my ride to work for a couple days. I can’t wait :))))
 
It's also a good idea to go through all the wiring. Check it for rubbed bare wires, check and clean all the connections. I did this on my 1st one and have been rewarded with nearly 12 years of trouble-free electrical service. Only issues have been the normal occasional burned out bulb. I've done the same on the one I'm currently renovating and hopefully I'll reap the same benefits. These bikes are so old they really need this. On both I found a few rubbed bare wires and several questionable (dirty and/or loose) connections.
 
" A couple of people at work are tryna plan a ride to Ohio Pyle soon"

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Wow. When you do the trip we like photos.
 
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