James Owens
New Member
- Local time
- 9:44 AM
- Joined
- Oct 20, 2017
- Messages
- 12
So I will preface this question by saying that I have had a lot go wrong with my bike lately and there may be multiple issues at play here...
So the problem that I am having is that the motor is idling high and when I start unscrewing the idle adjust screw, once I pass a certain point it goes from very high idle to barely running and then dies. There is a very specific point and I am not really getting anything in between.
In addition to this, I have found that my choke is doing absolutely nothing and the bike will idle fine (But high) with it either completely open or completely closed.
I initially thought it was an air leak so I took of the manifold and put a new gasket in and covered the end of it with high temp silicone before sliding the carb back on then I gooped on a bunch around where it slides on. (I know it's only a temporary solution and that it isn't gasoline resistant)
Doing this seems to have solved some other problems I was having (it was dieseling at idle at even higher rpms before I did this) but it still is idling high and the screw won't fix it and the choke still does nothing.
The choke flap thing (don't know what to call it) covers the hole completely and seems to be pretty flush with the opening when I have it closed. (I've been doing diagnostics with the air filter off so I can confirm this).
If I completely cover the area where the air filter would be with my hand though it starts to die as if the choke were actually engaged...
I have no idea what is up with it and plan to change out the carb as the next step as soon as I can either get one back from my buddy or find all the parts to reassemble one of my other spares.
Other problems I have had at the same time as this one (they may or may not have anything to do with the problem but they may explain some of the symptoms) would be as follows:
•In my way home last week the bike seemed to only be running at half power.
• Reexamined electrical and changed spark plug to no avail.
•I then noticed that one of the mounting brackets was missing a stud. Tried to put a new stud in then realised the the stud broke flush with the case.
•Tried to remove broken stud and failed. Drilled out stud hole and attempted to helicoil. Didn't hold the drill straight and couldn't get it tapped because of sloppy hole.
•Drilled bigger hole. Put in 8mm helicoil and stud. Remounted motor on bike.
•Tried to bend muffler so the pedals would stop hitting it so I wouldn't brake off another muffler at the weld.
• I broke the muffler at the weld.
•Needed the bike for transportation so ground the threads off a lawnmower muffler and shoved in in the muffler pipe, driving a bolt through both the pipe and the muffler to keep in in place.
•Tried to drive in in to work, engine was topping at 20-25 the same as it was before dismounting and remounting.
•Muffler broke off at the weld.
•Built new muffler at work at the hardware store out of some pipe fittings, a water heater supply line, and a lawnmower muffler.
•New muffler worked fine but still topped out around 25.
•Next day, motor started to diesel and idle high, still topped out at 25.
•Figured it must be compression, took off head, saw blown gasket.
•Changed base and head gasket, retorqued to spec.
•No compression at all now, noticeable leak around head.
•Took off head, retorqued, still had air leak in same spot (repeat 5x)
•Took off head, replaced head gasket with new one, took new (used) head and retorqued. Still had leak in same spot. (Repeat 1x)
•Pull out all of my hair and curse the bike I a way my mother would not be proud of
•Took off jug, lapped jug, replaced base gasket, put jug back on, torqued down head, still had leak.
•Though about throwing a match in the gas tank and being done with it
•Examined all three heads
•Realized I had three warped heads, lapped heads.
•Put head back on with new gasket, no more leak.
•Able to reach prior top speed with this motor again.
•Clutch cable snapped, replaced clutch cable and reajsted clutch.
•Still dieseling at idle, idle extremely high.
•Gas tank busted a leak. Attempted to use seal all, still had leak.
•Replaced gas tank.
•Took off manifold, replaced gasket, added silicon.
•No more dieseling, ran a bit smoother but still idling high.
It has been a very long week with this bike... I'd really like to get it running normally again, any help would be incredible appreciated...
So the problem that I am having is that the motor is idling high and when I start unscrewing the idle adjust screw, once I pass a certain point it goes from very high idle to barely running and then dies. There is a very specific point and I am not really getting anything in between.
In addition to this, I have found that my choke is doing absolutely nothing and the bike will idle fine (But high) with it either completely open or completely closed.
I initially thought it was an air leak so I took of the manifold and put a new gasket in and covered the end of it with high temp silicone before sliding the carb back on then I gooped on a bunch around where it slides on. (I know it's only a temporary solution and that it isn't gasoline resistant)
Doing this seems to have solved some other problems I was having (it was dieseling at idle at even higher rpms before I did this) but it still is idling high and the screw won't fix it and the choke still does nothing.
The choke flap thing (don't know what to call it) covers the hole completely and seems to be pretty flush with the opening when I have it closed. (I've been doing diagnostics with the air filter off so I can confirm this).
If I completely cover the area where the air filter would be with my hand though it starts to die as if the choke were actually engaged...
I have no idea what is up with it and plan to change out the carb as the next step as soon as I can either get one back from my buddy or find all the parts to reassemble one of my other spares.
Other problems I have had at the same time as this one (they may or may not have anything to do with the problem but they may explain some of the symptoms) would be as follows:
•In my way home last week the bike seemed to only be running at half power.
• Reexamined electrical and changed spark plug to no avail.
•I then noticed that one of the mounting brackets was missing a stud. Tried to put a new stud in then realised the the stud broke flush with the case.
•Tried to remove broken stud and failed. Drilled out stud hole and attempted to helicoil. Didn't hold the drill straight and couldn't get it tapped because of sloppy hole.
•Drilled bigger hole. Put in 8mm helicoil and stud. Remounted motor on bike.
•Tried to bend muffler so the pedals would stop hitting it so I wouldn't brake off another muffler at the weld.
• I broke the muffler at the weld.
•Needed the bike for transportation so ground the threads off a lawnmower muffler and shoved in in the muffler pipe, driving a bolt through both the pipe and the muffler to keep in in place.
•Tried to drive in in to work, engine was topping at 20-25 the same as it was before dismounting and remounting.
•Muffler broke off at the weld.
•Built new muffler at work at the hardware store out of some pipe fittings, a water heater supply line, and a lawnmower muffler.
•New muffler worked fine but still topped out around 25.
•Next day, motor started to diesel and idle high, still topped out at 25.
•Figured it must be compression, took off head, saw blown gasket.
•Changed base and head gasket, retorqued to spec.
•No compression at all now, noticeable leak around head.
•Took off head, retorqued, still had air leak in same spot (repeat 5x)
•Took off head, replaced head gasket with new one, took new (used) head and retorqued. Still had leak in same spot. (Repeat 1x)
•Pull out all of my hair and curse the bike I a way my mother would not be proud of
•Took off jug, lapped jug, replaced base gasket, put jug back on, torqued down head, still had leak.
•Though about throwing a match in the gas tank and being done with it
•Examined all three heads
•Realized I had three warped heads, lapped heads.
•Put head back on with new gasket, no more leak.
•Able to reach prior top speed with this motor again.
•Clutch cable snapped, replaced clutch cable and reajsted clutch.
•Still dieseling at idle, idle extremely high.
•Gas tank busted a leak. Attempted to use seal all, still had leak.
•Replaced gas tank.
•Took off manifold, replaced gasket, added silicon.
•No more dieseling, ran a bit smoother but still idling high.
It has been a very long week with this bike... I'd really like to get it running normally again, any help would be incredible appreciated...