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General Category >> Rubber Side Down! >> Max Speed?
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Message started by Regul8r on 08/11/08 at 15:03:44

Title: Max Speed?
Post by Regul8r on 08/11/08 at 15:03:44

I just replaced the motor on the 95 Savage with an 87 Motor.

The 95 w/5-speed would run up to 80 and beyond.
This '87 w/4-speed will not get me past 65.

It has the same pipes, carb and jetting, air filter/box as the 95 did when it blew up.

WHAT GIVES!??
Is the top speed of an 87 65MPH??
It doesn't feel like it is hitting a rev limiter.
Is there a difference in the ignition module from the 95 to the 87?
Do I need to change the ignition module to the 87 in order to match the module with the motor? (stupid question but hey you never know)

I also noticed that I hit 65 at about 3/4 throttle and there is no further pick up for the last 1/4 turn of the throttle.

Running stock filter with air box cover and snorkel removed. Stock pilot jet, stock needle with about half the washer removed, and a 145 main jet.I think I am going to raise the main jet to 155 from the 145 it had before the motor blew! The same HD pipe I rode with the 95 for about a year with no problem is now turning really funky colors after just 20 miles on the replacement motor. So I am thinking it is running too hot because it may be way lean with the 145 on the 4-speed.

HELP!

Title: Re: Max Speed?
Post by verslagen1 on 08/11/08 at 15:13:49

the ig module is different between the 2 years
and stock jet for the 87 I think was 155

Title: Re: Max Speed?
Post by serowbot on 08/11/08 at 16:13:34

65?...your bike sucks!....

94mph...Ludicrous Speed !.....Wheeeeeee!!!!...

kidding about the suck part,...something's definitely wrong there though...check compression and valves...

Title: Re: Max Speed?
Post by Regul8r on 08/11/08 at 16:56:54

Swapped the jets.
55 pilot, 155 main

NO DIFFERENCE!

Gonna replace the IG module now.

THEN Have to check valves? Set lash?

Title: Re: Max Speed?
Post by verslagen1 on 08/11/08 at 17:53:13

yep, see the tech section for all your maintenance needs.

Title: Re: Max Speed?
Post by Regul8r on 08/12/08 at 06:26:33

IG replaced with no difference.
Not that I thought it would!
Especially seeing how the numbers on the 87 & 95 were the same.

So I guess next step is to check and adjust/set valves.

IF that does not get it... then there is a deeper issue or that is all the speed an 87 with a 4-speed will get. I HOPE NOT!

IF that is the problem then I will be looking for another motor here VERY QUICK!

Title: Re: Max Speed?
Post by Moofed on 08/12/08 at 06:57:59

Hitting 65 and then no more throttle response is exactly what happened when my carb's slide was stuck. Make sure the spring is seating correctly in the lid.

Title: Re: Max Speed?
Post by Regul8r on 08/13/08 at 16:46:42

I will check that!
Makes sense but again, I think it is running well as it runs all the way up the RPM range in the gears.

We'll see I hope thats it!

Title: Re: Max Speed?
Post by Sandy Koocanusa on 08/13/08 at 18:04:16

I'm running an '87. It hits 85 every time I ask it too. That's all she wrote, though, unless I'm headed downhill. Something is not right with your bike.