just started riding about 3 years ago and cant afford new stuff yet. i have an 87 formula plus and 1 cylnder went down. replaced it with 94 583, psi on both cylinders is 125. when i have it on a stand everything runs great. when riding i cant go faster than 45 mph. have adjusted bolts on tra clutch and same thing happens. apperently old motor owner said it done same thing and that is why he sold it. any help would be great.
just aint runnin right
- Thread starter rare breed
- Start date
Did it go faster than 45 before the cylinder went down? Do you do any other work to it?
aint runing right
my motor ran just fine befor cylinder went. new motor didnt. it wouldnt go faster than 45 and or about 5000 rpm
my motor ran just fine befor cylinder went. new motor didnt. it wouldnt go faster than 45 and or about 5000 rpm
I dont remember if that motor had exhaust valves or not, but if it does you might check those for damage.
aint runnin right
the 583 has rave exhaust valves. the old didnt
the 583 has rave exhaust valves. the old didnt
I'd make sure those valves are clean and operating correctly. If its not that, then maybe the cluthing for your old engine doesnt match up well with the new motor. Also not sure if you used the 583 carbs and pipe, but that will make a big difference.
Good luck man....hope you get er back on the trail soon!
Good luck man....hope you get er back on the trail soon!
aint runnin right
clutch is off of the 583. carbs are off the 521. the pipes are off the 521. motor runs the same as it did with the no matter what pipes and carbs are used. i am wondering if the clutch on the 583 aint bad . the 521 ran great until the cylinder went. only real change is motor. the 583 has tra clutch. the 521 has old style clutch.old motor ran great until cylnder went
clutch is off of the 583. carbs are off the 521. the pipes are off the 521. motor runs the same as it did with the no matter what pipes and carbs are used. i am wondering if the clutch on the 583 aint bad . the 521 ran great until the cylinder went. only real change is motor. the 583 has tra clutch. the 521 has old style clutch.old motor ran great until cylnder went
1 way to find out.....tear into her and see!
question what about changing the clutch from the tra to the old one.
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I would think the pipe and carbs are not compatible with the 583 without making changes.
talked to guy bought motor from. it had pipes on it, the carbs are bigger on the 521 than the 583. 48s vrs 44.
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