Valves?

Message

firepisser8104 · Wed May 24, 2006 5:57 pm

Ok i rebuilt my carbs, double checked my air intake, replaced the plugs and my bike bogs down at about 4500 RPMS, and 500 less for each gear past 1st. I dont know what else to try looking into exept my valves, could that be causing my problem? any ideas?

Mintbread · #2 Unread post by **Mintbread** » Wed May 24, 2006 6:31 pm

Did it start bogging down before or after you did all the work?

firepisser8104 · Wed May 24, 2006 6:34 pm

It started bogging down after i rebuilt the carbs. See post (need help)

Mintbread · #4 Unread post by **Mintbread** » Wed May 24, 2006 7:06 pm

Why did you rebuild the carbs? See post (need info)

#5 Unread post by **Skier** » Wed May 24, 2006 7:17 pm

When it bogs does adding more throttle help? Does giving it less throttle help?

Sounds more like a carb problem than valves.

firepisser8104 · Thu May 25, 2006 2:53 am

I had to rebuild the carbs because they were all gummed up and , my bike would start with the choke on for a few secs then as soon as you gave it gas it died, I took them apart and found jets clogged, float springs stuck, and gunk in them. So i cleaned them out and rebuilt them. After just cleaning them once before iit would bog down at first then race up in RPMS. Now the first 4000 RPMs are fine then it bogs down. If i back off the gas it just comes back down, if i hold the throttle open it bogs more and pops. I could ride it to the closest shop, but the bike will let me do like 35mph right now with the RPM issue.

MotoF150 · #7 Unread post by **MotoF150** » Thu May 25, 2006 7:00 am

needle carb, or throttle plate carb? sounds to me that hes getting too much gas and flooding the engine, gasket leaking in the idle jet, or the jets are not sealed right? chewed up needle? backfires thru the air intake too much gas.

mydlyfkryzis · Thu May 25, 2006 9:35 am

The gunk in the carbs prolly came from your fuel tank. Did you clean your fuel tank out? You may have gobbed up the carbs again...

firepisser8104 · Thu May 25, 2006 12:04 pm

Gas tank was cleaned out by a shop. The carbs have needles, which were replaced, its no longer popping as much but it does still bog down. i checked my valves and they are ok. Its suposed to be in the 80's this weekend and i want to ride in it. Any ideas?

CORSCO · #10 Unread post by **CORSCO** » Thu May 25, 2006 12:27 pm

If it is not a carb problem, try running Amsoil fuel conditoner or something like it... Rediline, Yamaha Ring free. It might be deposits on your intake valves that are causing the stumble.
Does it work itself out of the stumble? If not, it is probably carb issues. Take it back to the shop and see what they say.