Maxxam 150 2r wont start

Post subject: Re: Maxxam 150 2r Will not start

justykumbusty wrote:

jls7707 wrote:

So I checked my valves again and found that I adjusted them wrong the first time. I now have 170 psi. Still can't get it to fire up even with starting fluid, although it does sound differently for the first second. Here is one more thing I tried, I reconnected the wires to the brake master cylinder to see if maybe there was something with that. I can turn lights on with key in on position but when I try to start it nothing happens.

Not sure where to go from here. I do know fuel still is not getting into engine since the plug remains dry. My next option is to buy new carb since I once again took it apart and made sure jets were clear. Anyone know how many turns out the air/fuel needle needs to be? I tried one and a half and two and a half turns out..

its not your carb (it may be dirty) but if it didnt start with starting fluid, its the carb isnt the problem yet

Ok, what about maybe a weak spark? Is there a way to test this? I have replaced stator, cdi, coil, and plug but there is still the possibility I'm sure.

Post subject: Re: Maxxam 150 2r Will not start

once, again its not the carb- guarenteed if it doesnt start with SF, im thinking, is your battery new/fully charged? cause if not, the starter may sound normal but isnt providing enough power to turn it fast enough. You said the variator turns so that means that the engine pistons/valves are turning. You said the valves are fully adjusted so that should be good. I will make a list of what it could be From most likley to least likley, this is what i perform when i work in the shop with your conditions

1. Spark plug, ignition coil is not tight or corroded/loose connections
2.CDI is not working (a 8 dollar fix, why not for peace of mind?)
3. Battery is not fully charged (take it to a auto shop to test)
4. Valves WAY out of wack- clearence should be from manual
5. Timing is off- remember timing is usually it starts or doesnt
6. Clogged exhaust
7.corroded/ loose ground connection
8. Compression is off

Now heres how to test this stuff out.
1. Is the pos/negative battery terminal wires hot?-- Yes, shorted/corroded circuit somewhere
2. With your headlights on, engage starter, headlights are extremely/not visible while starting- bad/ discharged battery or corroded/loose terminals
3.With spark plug out, plug it into coil and put the other side on the engine on metal- does it spark when turning over? No= bad spark plug, wacked magneto, bad coil or cdi
4. Blue smoke when trying to start? Valve seals/stem are cracked

/\/\/\/\/\/\/\/\
I Believe it`s your CDI or coil if you told me you tried all of the above, its a 8 dollar fix, so why not for peace of mind?

Let me know- remember PM

Post subject: Re: Maxxam 150 2r Will not start

Thanks I will run through everything again. The CDI and coil, spark plug are brand new and I didn't have spark before installing them. I even went back through and tested each of the old components again and found it was actually only the CDI that was bad.

Post subject: Re: Maxxam 150 2r Will not start

justykumbusty wrote:

once, again its not the carb- guarenteed if it doesnt start with SF, im thinking, is your battery new/fully charged? cause if not, the starter may sound normal but isnt providing enough power to turn it fast enough. You said the variator turns so that means that the engine pistons/valves are turning. You said the valves are fully adjusted so that should be good. I will make a list of what it could be From most likley to least likley, this is what i perform when i work in the shop with your conditions

1. Spark plug, ignition coil is not tight or corroded/loose connections
2.CDI is not working (a 8 dollar fix, why not for peace of mind?)
3. Battery is not fully charged (take it to a auto shop to test)
4. Valves WAY out of wack- clearence should be from manual
5. Timing is off- remember timing is usually it starts or doesnt
6. Clogged exhaust
7.corroded/ loose ground connection
8. Compression is off

Now heres how to test this stuff out.
1. Is the pos/negative battery terminal wires hot?-- Yes, shorted/corroded circuit somewhere
2. With your headlights on, engage starter, headlights are extremely/not visible while starting- bad/ discharged battery or corroded/loose terminals
3.With spark plug out, plug it into coil and put the other side on the engine on metal- does it spark when turning over? No= bad spark plug, wacked magneto, bad coil or cdi
4. Blue smoke when trying to start? Valve seals/stem are cracked

/\/\/\/\/\/\/\/\
I Believe it`s your CDI or coil if you told me you tried all of the above, its a 8 dollar fix, so why not for peace of mind?

Let me know- remember PM

Ok so I went through everything again, I even took off intake and found it to be missing a gasket and I had one so put it on. Battery is brand new and charged, I keep battery charger on it while cranking. Positive and negative wires are not hot so no short.

So a run down:
-Has spark (new stator, CDI, coil, spark plug)
-Fully charged battery (new)
-Good ground on the starter
-Lights barely dim when trying to crank engine
-NO fuel getting to intake..
-Tried old coil and still have spark
-Tried old CDI and no spark.
-Exhaust is not blocked (air coming out)
-Compression is 170 psi
-Disconnected engine stop button
-Tested ignition switch.

Think that's it.

Post subject: Re: Maxxam 150 2r Will not start

ok this is definatly a stumper, are you sure you sprayed starting fluid, without carb- into the intake (boot) and tried to turn over? try using the petcock fuel line and put that in boot and try to turn over- it iwll put gas in intake but wont hurt a thing

Post subject: Re: Maxxam 150 2r Will not start

ok buddy, i think i know your problem and i just remembered

Post subject: Re: Maxxam 150 2r Will not start

I wonder if he got it started. I have one of these and the electrical system is a bit different.

Post subject: Re: Maxxam 150 2r Will not start

justykumbusty wrote:

ok buddy, i think i know your problem and i just remembered

Well I did find the problem, The starter solenoid! I removed it and just touched wires together. Although my carb was bad too. I replaced it and finally got the buggy to start today! but.. it was short lived, I let the engine run for about 15 minutes and then the engine sounded like it was starving for fuel and died. I tried to start it up again and nothing. Pulled spark plug to check spark and it was dry! Brand new carb stopped working apparently. Going to try and get it replaced since its only a week old! I will update once I get it all running again.

Thanks for all your help!

Update:

So I found another problem, rubber seal in gas cap was pretty much gone. Took gas gap off riding mower (temporarily) and now my plug is wet again. I was able to fire it up briefly then it died and I haven't been able to get it to start since. I am still getting fuel and spark. Rechecked valves and played with the air/fuel valve a little.

Post subject: Re: Maxxam 150 2r Will not start (will start now)

So I can get the buggy to start up now but I can't keep it running, after it dies I crank it over to get it to fire up but it won't. I pulled the plug and it's dry once again. I just can't seem to keep fuel flowing. The plug is also black, not fouled out but burnt. Any suggestions? Seems I am getting closer to getting this thing running thanks to y'all.

Update on new parts: starter and solenoid, variator pulley (fins were broken off)