How would you do if the SHTF
-
Similar Forum Topics
-
By ATVNetwork
As the 2025 ATV Motocross National Championship Series (ATVMX), an AMA National Championship, got underway with back-to-back Florida AMA Pro only events, it was evident that Phoenix Racing Yamaha’s Joel Hetrick picked up where he left off last season.View the full article
-
By Pure_Michigan
Hello everyone. This is a Go Cart and not a typical "ATV" but it has an engine so I'm hoping someone can help me. It's a Helix FTX with a Manco 150cc engine. The engine will start and idle for awhile, but will not take even a small touch of throttle. Stalls. It seems to take throttle and rev up when you first start it cold, but in just a minute, it will not take any throttle. I've replaced the Fuel valve/Pump on the fuel tank with no joy. It's a nice little cart, but without a workable engine, it's a boat anchor. I'm not dumb when it comes to small engines, but this one has me stumped. I'm running out of options.
I'll mention that while it is idling, it will sort of "cough" every 6 or 8 seconds and then recover and idle again. Eventually one of those "coughs" causes it to stall. It will start back up pretty easily, but as I said, it absolutely will not take any throttle and then it will cough and stall a minute later. I thought it could be timing, but there is no "adjustment" for timing on this engine. I downloaded the user manual and it mentions nothing about timing and is pretty much useless as a service guide. It just shows the basics. I'm attaching the manual so you can get an idea of the machine I'm dealing with.
Any input would be greatly appreciated.
Kind regards,
Don
Manco-Helix-6150-150cc-Owners-Manual.pdf
-
By dlgg7
I've had this for probably 15 years. It ran great till 4-5 years ago, mainly riding the grandkids around our fields, till it wouldn't start. It sat for a couple of years till I bought a new battery, but couldn't get it to even hit, so rebuilt the carb, put on a new fuel pump, but no go, so it's sat. Several days ago, charged battery, cranked over and it started??? OK, idles good, but won't rev up, so emptied gas tank, flushed out and filled w/good 93 octane, pulled pump line from carb and have good full line of fuel cranking over. New spark plug, good spark, old one black BAD! Oil change, adjusted valves, no difference. Pulled carb and took apart and cleaned, didn't find any clogs or crusted up inside. Now I've had the carb back off probably 6 times checking, double checking anything I can think of. No gas blowing back in air box. It idles good, can increase throttle up some then starts popping and dropping rpms off and if I don't let off the throttle, it'll die. I've read for 3 days now MECHs and RANDY walking several thru tracing the same problem, tried MOST of the direction given. ??? -
By Seriousbird
1992 Suzuki kingquad 300 with 17000 kms.
New intake boot same old problem. Starts and Idles perfect, wont take any % of throttle. Same tune i had as when it got flooded with water.
All i did since then:
Cleaned the top and bottom of the carb and jets.
Swapped different plastics onto it.
Rebuilt the starter.
Added another ground. (Since removed)
Extended the positive terminal so it can fit without strain.
Added battery.
Swapped carb diaphragm off of another. (No holes)
Did a temporary oil cooler delete.
Flushed and replaced the oil.
Just added a brand new intake boot & gasket....
Had it running perfectly just days ago minutes after i siliconed the intake gasket. It has since melted away from gas i assume. Didn't touch it for 4 days went to go for a ride and bogged and bogged. Replaced the gasket and intake boot to no avail, so i really don't know what's going on now.
The spark plug is dry carbony but it's the same tune as before..
Has good fuel flow in the line, fuel is new.
I was testing spark yesterday and it was bright orange. And it eventually went back to its white, Not blue by any means.
Before i replaced the intake boot it would take tension on the throttle and you would get 2000 rpm max before it bogged..
Since i replaced it, it won't take any at all. Spraying flammable liquids into the carburetor had the same bog result. I tried spraying said flammable liquids around the head boot seal and didn't notice any difference. I didn't try for too long.
boot to head is tightened as much as i could with a screwdriver + less than a quarter turn with a ratchet.
Previous silicone very possibly could have fell into the combustion chamber and did something there??...
No difference with any choke, with or without airbox boot, pressurizing the fuel tank, battery disconnected.. there was a point where i left choke on and had the air filter that came with it on and it flooded the whole airbox with fuel, That was when i was building compression because i lost all of it during the flushing process. (It's back now)
Im lost! This thing was perfect until i got water in the oil and flushed everything and what not. Its only been less than a week since then so theres no chance the fuel went bad.
Snapchat-1004857443.mp4 Ps the switch is a neutral safety switch bybass. It really hates itself with the switch off. It makes a knocking noise and idles with a surge. Is perfect with a battery connected off and on but without a battery it has to be on..
-
-
-
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.