Just bought a 1989 Phazer, said it needed the carbs cleaned (it didn't run right). Took the carbs apart, they were clean inside. Went further, the reeds had some crud above and below (like it sucked in a mouse nest), but the reeds themselves were clean. One side oiler was plugged up, not sure how long it was like that. Put it back together and took it for a ride, didn't change anything. Looked online, and found its a common problem for corrosion on the voltage regulator, so I took that off and used DeoxIT contact cleaner on it (the negative was quite corroded). Put it back together and now it has seemlingly 3 modes. 1 where it idles funny and has almost no power. Another where it goes about 30mph tops and won't go over 5000mph and a third where it feels like it has full power. It alternates between these three modes at random (for the 5 minutes I took it around the field).
I haven't checked compression but it feels stiff pulling over. Fuel pump seems strong, I turned it over without the carbs on and fuel came out of those two hoses like a fire hydrant. Plugs are brand new. I drained out the gas in the tank and put in fresh gas. TORS is bypassed. Taken the carbs apart twice for cleaning, seems like the passages are clear (even the two ports by the airbox)
I'm kind of leaning towards wire rub through (had it bad on my '99 SRX 700), or maybe a stator (when my SRX 700 stator went bad, it didn't have full power after that), or maybe the coil pack. Best guess is wire rub through since sometimes it feels like its all there, then other times won't even run. Plus it looks like a mouse has lived in it at some point. Thoughts?
I haven't checked compression but it feels stiff pulling over. Fuel pump seems strong, I turned it over without the carbs on and fuel came out of those two hoses like a fire hydrant. Plugs are brand new. I drained out the gas in the tank and put in fresh gas. TORS is bypassed. Taken the carbs apart twice for cleaning, seems like the passages are clear (even the two ports by the airbox)
I'm kind of leaning towards wire rub through (had it bad on my '99 SRX 700), or maybe a stator (when my SRX 700 stator went bad, it didn't have full power after that), or maybe the coil pack. Best guess is wire rub through since sometimes it feels like its all there, then other times won't even run. Plus it looks like a mouse has lived in it at some point. Thoughts?
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Have you checked the center clutch bushings and rollers? Could be warn clutch parts.
I haven't checked the primary. Secondary buttons looked ok.
Compression tester just arrived, took about 4 seconds to get to ~100psi, so that's probably part of the problem. Doesn't have many miles (1800) but I bet they didn't let it warm up before ripping on it. I'll probably just pull the motor, split the crank halves and rebuilt it. I'll check the wiring under the motor while its out (my SRX had wire rub through down there)
Kill switch on, hold throttle wide open, and pull. In 4 or 5 pulls it should be 110 to 115
opsled
Active member
That sled is old enough to have bad crank seals too if it hasn't been apart. They could be causing your running and compression issues.
opsled
opsled
PZ 1
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- Mar 12, 2005
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Run a jumper wire from a good engine ground to a good frame ground.
I'm unable to test further due to loss of snow, but it did run out of gas last time I used it. Which is strange as I put in a gallon and it went through it in almost no time. Could it be needle valves?
Also is there anything keeping fuel from free flowing once the carbs fuel lines are off? Like a ball check valve or the fuel pump? My SRX 700 lines after the pump don't flow fuel when I remove the carbs (I don't have to plug the lines), but I think the phazer wanted to when I took off the carbs to clean. Not sure if its supposed to
Also is there anything keeping fuel from free flowing once the carbs fuel lines are off? Like a ball check valve or the fuel pump? My SRX 700 lines after the pump don't flow fuel when I remove the carbs (I don't have to plug the lines), but I think the phazer wanted to when I took off the carbs to clean. Not sure if its supposed to
It should only move fuel when the diaphragm in the pump is pumping ...
Still having this issue but it moved to my other phazer, my 1988, after I rebuilt both machines this summer. Tore both motors down, split the crank cases and replaced all seals (and put in new primary coils). I'm thinking it has to be either the carbs or the external coil / plug wires, as those would be the things that could have been put on the opposite motor (I may have swapped up some parts on accident). Thoughts? I suppose the easiest thing to do is swap coils and see if the problem follows.
Runs much better with a new coil.
Must have been my compression tester, because after the rebuild I still get around 100. Compression feels stout too, I can barely pull it over.
I had similar symptoms from leaking seals. For me it made sense to add a fuel shutoff and get in the habit of shutting it every time you stop for a longer period of time.
Bog came back, though not as bad as before (and it sounds / feels different). I'm almost thinking the coil was bad (and that's been fixed), and either the pump or the float bowls are dumping fuel into the engine. I've got a fuel pump rebuild kit coming. How do you guys check your float height? When I have problems with my ATVs the fuel always come pouring out somewhere right off, but this phazer dumps it right into the engine invisible to the owner. Any way to tell if the floats are adjusted right? I see a float bowl height spec, but not sure what that means. Is that the level of fuel from the bottom of the carb bowl? Or something to do with the foam/metal arm that actuates the needle valve?
Having about the same issue on the other Phazer. I can rule out carbs, swapped with my other phazer and still runs the same. Motor is rebuilt (happened before and after rebuild). I'm thinking its electrical. It starts fine but when I start driving it around it bogs, warmer it gets the worse it gets to the point where it won't move. If I turn the machine off for a minute or two it'll come back a little (enough to get it into the garage but barely).. Maybe the coil like the other machine. I have a question, after some research it appears as though they redid the stator system sometime around 1990 for the phazer 2. Is the external coil the same? I'm seeing conflicting information on websites. Some are selling a 1984-89 coil and a 90+, but I also see a few sites that show a 84-96 coil. TIA
Have you checked the choke cable? I have had them do this with a bad choke cable that won’t release.
Thx for the reply Mr Sled. Choke cable seems good. Kind of thinking its electrical. I think it might be the coil as its an original from the 80s when it was made. This post sounds like the same thing https://totallyamaha.net/threads/103312/
I think it could also be the ground. I've got electric start models where I've not put in a battery this season. Could that be a problem? Does it need the battery to work (like for grounding or something)? I see they also made manual start only models, do I have to do something special if I remove the battery from electric start models?
One thing that stuck out at me when I was starting it (with a car jump starter) was that the electric start motor didn't sound like it had much oomf. The battery charger I was using in past years has turned it over really fast but not this time (even in 80amp mode). Which makes me think even more that it could be the ground strap. Does the ground strap from the recoil bolt to the battery have to be grounded to the frame if its not connected to the battery? I just have it dangling in the air.
I think it could also be the ground. I've got electric start models where I've not put in a battery this season. Could that be a problem? Does it need the battery to work (like for grounding or something)? I see they also made manual start only models, do I have to do something special if I remove the battery from electric start models?
One thing that stuck out at me when I was starting it (with a car jump starter) was that the electric start motor didn't sound like it had much oomf. The battery charger I was using in past years has turned it over really fast but not this time (even in 80amp mode). Which makes me think even more that it could be the ground strap. Does the ground strap from the recoil bolt to the battery have to be grounded to the frame if its not connected to the battery? I just have it dangling in the air.
Need a good ground to make spark and keep it running but I don’t think that’s why it bogs. You should not need battery.
Looking into the external coil, it appears as though the early phazers 84-88 used 8E7-82310-09-00 coil, which is also used on late 70s enticers, srx440, exciters, and some others. Not sure what's going on in 1989, it appears to use the new coil. When I rebuilt both motors a few years ago I used the same internal coils. Could that be a problem? I thought phazer 2 started in 1990, my 1989 looks like a phazer 1. When I replaced the internal coils I didn't look at them too closely to see if the ones I took off were the same.
After it warmed up it bogged big time. But then after I let it cool for a couple minutes I was able to get into the garage, though still bogging bad. Idled strong when it was warming up. Could it be computer CDI, voltage regulator, or rectifier?
Looks like there are two SPI external ignition coil part numbers for the two generations of phazers. I think I have the wrong coil in one phazer and a bad one in the one that's bogging. Agree? Or what do you guys think?
01-143-15
01-143-14 (says replaces 85T-82310-00-00)
After it warmed up it bogged big time. But then after I let it cool for a couple minutes I was able to get into the garage, though still bogging bad. Idled strong when it was warming up. Could it be computer CDI, voltage regulator, or rectifier?
Looks like there are two SPI external ignition coil part numbers for the two generations of phazers. I think I have the wrong coil in one phazer and a bad one in the one that's bogging. Agree? Or what do you guys think?
01-143-15
01-143-14 (says replaces 85T-82310-00-00)
Code:
This Yamaha 8E7-82310-09-00 IGNITION COIL ASY fits the following models and components:
Yamaha Snowmobile 1979 ET340C ELECTRICAL
Yamaha Snowmobile 1978 EX440B ELECTRICAL
Yamaha Snowmobile 1979 EX440C ELECTRICAL
Yamaha Snowmobile 1978 ET340B ELECTRICAL
Yamaha Snowmobile 1977 SRX440A ELECTRICAL
Yamaha Snowmobile 1978 EX340B ELECTRICAL
Yamaha Snowmobile 1977 EX440A ELECTRICAL
Yamaha Snowmobile 1977 EX340A ELECTRICAL
Yamaha Snowmobile 1979 ET300C ELECTRICAL
Yamaha Snowmobile 1980 ET340D Electrical - 1
Yamaha Snowmobile 1986 SRV - SR540K Electrical - 1
Yamaha Snowmobile 1986 XLV - XL540K Electrical - 1
Yamaha Snowmobile 1985 PHAZER - PZ480J Electrical - 1
Yamaha Snowmobile 1988 XLV - XL540M Electrical - 1
Yamaha Snowmobile 1980 ET340ED Electrical - 1
Yamaha Snowmobile 1979 ET340EC Electrical - 1
Yamaha Snowmobile 1982 ET340F Electrical - 1
Yamaha Snowmobile 1983 EC340G Electrical - 1
Yamaha Snowmobile 1981 EC340E Electrical - 1
Yamaha Snowmobile 1984 PHAZER - PZ480H Electrical - 1
Yamaha Snowmobile 1984 SRV - SR540H Electrical - 1
Yamaha Snowmobile 1984 SS440 - SS440H Electrical - 1
Yamaha Snowmobile 1988 PHAZER - PZ480M Electrical - 1
Yamaha Snowmobile 1987 PHAZER - PZ480L Electrical - 1
Yamaha Snowmobile 1986 PHAZER - PZ480K Electrical - 1
Yamaha Snowmobile 1980 EX440D Electrical - 1
Yamaha Snowmobile 1981 ET300E Electrical - 1
Yamaha Snowmobile 1983 ET300G Electrical - 1
Yamaha Snowmobile 1984 PHAZER SE (ELEC START) - PZ480SEH Electrical - 1
Yamaha Snowmobile 1985 PHAZER E (ELEC START) - PZ480EJ Electrical - 1
Yamaha Snowmobile 1987 XLV - XL540L Electrical - 1
Yamaha Snowmobile 1987 SRV - SR540L Electrical - 1
Yamaha Snowmobile 1987 PHAZER DELUXE (ELEC START) - PZ480EL Electrical - 1
Yamaha Snowmobile 1985 XL-V - XL540J Electrical - 1
Yamaha Snowmobile 1985 SRV - SR540J Electrical - 1
Yamaha Snowmobile 1985 SS440 - SS440J Electrical - 1
Yamaha Snowmobile 1981 EX440E Electrical - 1
Yamaha Snowmobile 1988 SRV - SR540M Electrical - 1
Yamaha Snowmobile 1988 PHAZER DELUXE (ELEC START) - PZ480EM Electrical - 1
Yamaha Snowmobile 1982 ET340TF ELECTRICAL 1 ET340TF - TG
Code:
This Yamaha 85T-82310-09-00 IGNITION COIL fits the following models and components:
Aftermarket Parts ELECTRICAL Ignition Stators & Coils
Yamaha Snowmobile 1989 PHAZER - PZ480N Electrical - 1
Yamaha Snowmobile 1999 OVATION LE - CS340EC Electrical - 1
Yamaha Snowmobile 1998 OVATION LE - CS340EB Electrical - 1
Yamaha Snowmobile 1995 VMAX-4 800 - VX800V Electrical - 1
Yamaha Snowmobile 1995 ENTICER II LT - ET410TRV Electrical - 1
Yamaha Snowmobile 1994 VMAX-4 - VX750U Electrical - 1
Yamaha Snowmobile 1996 VMAX-4 MOUNTAIN MAX - VX800STW Electrical - 1
Yamaha Snowmobile 1995 VMAX-4 ST (LONG TRACK) - VX800STV Electrical - 1
Yamaha Snowmobile 1993 OVATION LE - CS340ET Electrical - 1
Yamaha Snowmobile 1990 EXCITER HIGH ALTITUDE - EX570HP Electrical - 1
Yamaha Snowmobile 1988 VK540 - VK540M Electrical - 1
Yamaha Snowmobile 1990 OVATION - CS340P Electrical - 1
Yamaha Snowmobile 1989 XLV - XL540N Electrical - 1
Yamaha Snowmobile 1992 EXCITER II LE (ELEC START) - EX570ES Electrical - 1
Yamaha Snowmobile 1992 EXCITER II - EX570S Electrical - 1
Yamaha Snowmobile 1992 ENTICER II LT - ET410TRS Electrical - 1
Yamaha Snowmobile 1993 ENTICER II LT - ET410TRT Electrical - 1
Yamaha Snowmobile 1993 EXCITER II ST - EX570STT Electrical - 1
Yamaha Snowmobile 1994 VMAX-4 ST (LONG TRACK) - VX750STU Electrical - 1
Yamaha Snowmobile 2001 ET410TRF Electrical - 1
Yamaha Snowmobile 2000 CS340 - CS340ED Electrical - 1
Yamaha Snowmobile 1990 PHAZER II - PZ480P Electrical - 1
Yamaha Snowmobile 1990 VK540 - VK540EP Electrical - 1
Yamaha Snowmobile 1991 PHAZER II LE (ELEC START) - PZ480ER Electrical - 1
Yamaha Snowmobile 1991 EXCITER II - EX570R Electrical - 1
Yamaha Snowmobile 1990 EXCITER - EX570P Electrical - 1
Yamaha Snowmobile 1989 CS340N Electrical - 1
Yamaha Snowmobile 1989 EXCITER - EX570N Electrical - 1
Yamaha Snowmobile 1989 EXCITER DELUXE (ELEC START) - EX570EN Electrical - 1
Yamaha Snowmobile 1997 VMAX-4 800 - VX800A Electrical - 1
Yamaha Snowmobile 2000 ET410TR Electrical - 1
Yamaha Snowmobile 1990 EXCITER LE (ELEC START) - EX570EP Electrical - 1
Yamaha Snowmobile 1990 EXCITER LE (ELEC START) HIGH ALTITUDE - EX570EHP Electrical - 1
Yamaha Snowmobile 1990 PHAZER II LE (ELEC START) - PZ480EP Electrical - 1
Yamaha Snowmobile 1993 EXCITER II LE (ELEC START) - EX570ET Electrical - 1
Yamaha Snowmobile 1992 VMAX-4 - VX750S Electrical - 1
Yamaha Snowmobile 1992 PHAZER II ST - PZ480STS Electrical - 1
Yamaha Snowmobile 1993 EXCITER II SX - EX570SXT Electrical - 1
Yamaha Snowmobile 1991 PHAZER II - PZ480R Electrical - 1
Yamaha Snowmobile 1992 PHAZER II LE (ELEC START) - PZ480ES Electrical - 1
Yamaha Snowmobile 1991 ENTICER II LT - SR540RSR Electrical - 1
Yamaha Snowmobile 1989 ENTICER LTR (LONG TRACK+REVERSE) - ET400TRN Electrical - 1
Yamaha Snowmobile 1989 VK540 - VK540EN Electrical - 1
Yamaha Snowmobile 1989 SRV - SR540N Electrical - 1
Yamaha Snowmobile 1990 ENTICER LTR - ET400TRP Electrical - 1
Yamaha Snowmobile 1989 CS340EN Electrical - 1
Yamaha Snowmobile 1997 VX800AQA Electrical - 1
Yamaha Snowmobile 1994 OVATION LE - CS340EU Electrical - 1
Yamaha Snowmobile 1994 ENTICER II LT - ET410TRU Electrical - 1
Yamaha Snowmobile 1993 VMAX-4 - VX750T Electrical - 1
Yamaha Snowmobile 1993 EXCITER II - EX570T Electrical - 1
Yamaha Snowmobile 1991 PHAZER II ST - PZ480STR Electrical - 1
Yamaha Snowmobile 1991 VK540 - VK540ER Electrical - 1
Yamaha Snowmobile 1997 MOUNTAIN MAX 800 - MM800A Electrical - 1
Yamaha Snowmobile 1997 OVATION LE - CS340EA Electrical - 1
Yamaha Snowmobile 1995 OVATION LE - CS340EV Electrical - 1
Yamaha Snowmobile 1996 VMAX-4 800 - VX800W Electrical - 1
Yamaha Snowmobile 1996 OVATION LE - CS340EW Electrical - 1
Yamaha Snowmobile 1992 OVATION LE - CS340ES Electrical - 1
Yamaha Snowmobile 1992 PHAZER II - PZ480S Electrical - 1
Yamaha Snowmobile 1991 EXCITER II LE (ELEC START) - EX570ER Electrical - 1
Yamaha Snowmobile 1990 SRV - SR540P Electrical - 1
Yamaha Snowmobile 1990 OVATION LE (ELEC START) - CS340EP Electrical - 1
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Could be, If they are cheap its worth a shot. I had a SS 440 that I never did get fixed and dropped in 540 sleeper. Runs great now.