outrageous
New member
I am considering putting a 600 Yamaha twin engine in an older sled. Does anyone know what the HP of this engine is and what can be done to pump it up a little more without going into the engine for mods?
Yamaha 600 twin engine ?
- Thread starter outrageous
- Start date
some place around 95hp stock I put aaen pipes and few other things to a buds in like 96 bet it never toped 100hp.but just take 10 tho off head jet it. prob hard to find a timing key but timing never hurt on the old carb sleds.but sounds like sled is on the bench not hard to pull the jugs and just clean up transfer ports so you cant catch a finger tip less than 1hr per jug big help
booondocker
New member
Had a 1995 vmax 600. Couldn't hurt it. Had snow rolling over the hood lots of times....never missed a lick. Used it as the backup sled...left it sit for many weeks in dead of winter and it would always start.
Had bad oilers tho....thing used to smoke up a storm in a trailer. Never touched it from stock and sold it for same price I paid for it after five years of use.
Had bad oilers tho....thing used to smoke up a storm in a trailer. Never touched it from stock and sold it for same price I paid for it after five years of use.
My 97 Vmax sx oil pump went bad. Looking for some used cylinders.
I also have a 96 600 vmax LE. My only complaint with these sleds is suspension related. The motors are rock solid. With the exception of the oil pump.
97 motor they changed the cylinder porting. More power. I also agree that cleaning up the ports and using the high perf gaskets to increase compression wakes these motors up. I would stick to the premium gas if thats the route you go. If you are stuffing the motor in an older - lighter sled, I would not worry about going the performance route taking premium gas prices in to consideration. Maybe just some vforce reeds seeing as you mentioned not going in to the motor. Clutching is always a way to wake the thing up a bit. Change the primary engagement rpm to be higher maybe.
I also have a 96 600 vmax LE. My only complaint with these sleds is suspension related. The motors are rock solid. With the exception of the oil pump.
97 motor they changed the cylinder porting. More power. I also agree that cleaning up the ports and using the high perf gaskets to increase compression wakes these motors up. I would stick to the premium gas if thats the route you go. If you are stuffing the motor in an older - lighter sled, I would not worry about going the performance route taking premium gas prices in to consideration. Maybe just some vforce reeds seeing as you mentioned not going in to the motor. Clutching is always a way to wake the thing up a bit. Change the primary engagement rpm to be higher maybe.
97 600 vmax XTC here---9700 miles ---just took out a cylinder due to the oil pump failing.
Anyone know what fails in the oil pump????
My engine also took out a cylinder at about 3500 miles but was warranted due to a problem Yamaha had with the ring keepers. The ring would rotate and catch on the port. I was actually well out of warranty but yamaha covered it 100%.
Also have a 95 600 and it it not as snappy and a lousy suspension but rock solid dependable.
Also have a 95 500 XTand that has been rock solid and almost as quick as the 600.
Anyone know what fails in the oil pump????
My engine also took out a cylinder at about 3500 miles but was warranted due to a problem Yamaha had with the ring keepers. The ring would rotate and catch on the port. I was actually well out of warranty but yamaha covered it 100%.
Also have a 95 600 and it it not as snappy and a lousy suspension but rock solid dependable.
Also have a 95 500 XTand that has been rock solid and almost as quick as the 600.
outrageous
New member
Thanks for all the good advice. I havn't bought one yet, I am really looking for a 700 triple, but they seem to be harded to find in my area.
anonomoose
New member
Look it doesn't matter to me what you buy and spend your time with, but if I were you I would STAY COMPLETELY AWAY FROM THE TRIPLE.
They are trouble prone and need fine tuning all the time.
Just been my experience...that's all.
They are trouble prone and need fine tuning all the time.
Just been my experience...that's all.
700classic
New member
Just wonderin', what ya going to put it in?
they may be finicky at times but I truly believe that the Yamaha 600 triple is the most reliable sled motor ever made. there are a few 20k+600triples out there on the stock top end still running strong. a guy in my area has over 26k on his with no motor issues lots of skid parts a arms miss electrical but motor still strong.and remember it is me the cat guy saying the best made [reliable]is the 600 Yamaha 3cyl.and you put some bender pipes jets clutching and head work to the 700 wicked power band just crackling across the ice.I had a few so called 700 triples give my thunder a run for its money back in the day
outrageous
New member
700 classis; I am planning on putting it into a 77 Exciter. I am putting a trailing arm front end on it and a 136" track and suspension. I'll try to post pics.
700classic
New member
SWEET!! Keep us posted!
L
lenny
Guest
where did you hear that from. I have owned many yamaha triples, I own one now and they are not in the least finicky, I mean zilch. They are strong, reliable motors, I highly recommend them
I also have a 700 triple in a mountain max and other than having to clean carbs when it idles rough I have had 0 issues in about 6 years. I cleaned the carbs about every 3 years only when it idled rough or started hard and it was always a plugged idle jet on one of the carbs. The carbs actually come out much easier than most sleds I have worked on. A bender can is the only mod I have and I have plenty of power for any UP backwoods or river running situation.
The early engines had some water pump seal issues but other than that they are very reliable. Mine would also foul plugs when starting but only when I had the idle jet issues. The mountain sleds came stock with no thermostat so they needed warming up.
The early engines had some water pump seal issues but other than that they are very reliable. Mine would also foul plugs when starting but only when I had the idle jet issues. The mountain sleds came stock with no thermostat so they needed warming up.
outrageous
New member
Just an update on this project; I have located a 700 triple in a Mountain Max with a 136 Pro action plus suspension. Just exactly what I was looking for. Going to check it out tomorrow and probably will bring it home.
outrageous
New member
Update; Well I got the 700 M/Max last Sat. and have made some progress on this build. Here are a few pics showing how things are going.
Hope to get more done this weekend, working on motor mounts, and then will be changing out the jackshaft and chaincase.
Hope to get more done this weekend, working on motor mounts, and then will be changing out the jackshaft and chaincase.
outrageous
New member
Just want to add a couple of pics of the motor mounts. Next the chaincase.
indy_500
Well-known member
Just want to add a couple of pics of the motor mounts. Next the chaincase.
talk about custom motor mounts! looking good! i hope you plan on slapping a coat of hi-temp paint on the y-pipe right? lol
outrageous
New member
burmad69; I had to move the motor left somemore for clutch alignment and am now hoping that it will clear the carb. Thanks for the tip, I may need to check that out.
Indy 500; Once the fab work is all done, the entire sled will be torn down and everthing will be blasted and painted. That pipe is pretty ugly isn't it.
Indy 500; Once the fab work is all done, the entire sled will be torn down and everthing will be blasted and painted. That pipe is pretty ugly isn't it.