Raptor 90 engine alignment and gear mesh

[Robert Roland]

The manual states to use a piece of paper between the gears to get the
proper gear mesh. I used newspaper. Is that OK, or should I use some
specific thickness?

When the gear mesh is set, I need to get the engine lined up with the
starter shaft. How do I do that?

I can spin the starter shaft and adjust the engine until the starter
shaft spins freely, but I feel there is a fairly large range where the
shaft still spins freely, so it does not seem accurate enough. Or is
it?
--
RoRo

[Robert Roland]

On Wed, 09 Apr 2008 14:19:03 GMT, "Beav"
<beavis.original@ntlwoxorld.com> wrote:

>A piece of paper is fine. The reason for the paper is just to ensure the
>teeth on both gears aren't "mashed" together too tightly.

OK.

>> When the gear mesh is set, I need to get the engine lined up with the
>> starter shaft. How do I do that?
>
>By slackening the bearing holder for the start shaft and "tweaking".

I was more thinking of how to see when it is straight. Everything
there is quite hidde behind the frame, so I can't see any way to sight
across to check for straightness.

>> I can spin the starter shaft and adjust the engine until the starter
>> shaft spins freely, but I feel there is a fairly large range where the
>> shaft still spins freely, so it does not seem accurate enough. Or is
>> it?
>
>If it turns with no effort and it doesn't try to rock the engine when you
>turn the start shaft, fly.

OK. It's now almost frictionless, so I'll have a go.

Thanks for your input.
--
RoRo

[Beav]

"Robert Roland" <fake@ddress.no> wrote in message
news:29hvv3d2h55r05677dfq9khkrpe6f5fha9@4ax.com...
> On Wed, 09 Apr 2008 14:19:03 GMT, "Beav"
> <beavis.original@ntlwoxorld.com> wrote:
>
>>A piece of paper is fine. The reason for the paper is just to ensure the
>>teeth on both gears aren't "mashed" together too tightly.
>
> OK.
>
>>> When the gear mesh is set, I need to get the engine lined up with the
>>> starter shaft. How do I do that?
>>
>>By slackening the bearing holder for the start shaft and "tweaking".
>
> I was more thinking of how to see when it is straight. Everything
> there is quite hidde behind the frame, so I can't see any way to sight
> across to check for straightness.

You need to look at the bottom of the clutch bell to see if it lines up with
the TINY amount of clutch shoe you can see. Also, look at the line of the
clutch bell and check that against the line of the main gear.
>
>>> I can spin the starter shaft and adjust the engine until the starter
>>> shaft spins freely, but I feel there is a fairly large range where the
>>> shaft still spins freely, so it does not seem accurate enough. Or is
>>> it?
>>
>>If it turns with no effort and it doesn't try to rock the engine when you
>>turn the start shaft, fly.
>
> OK. It's now almost frictionless, so I'll have a go.

Yeah, don't get fired up over a problem until it's obviously a REAL problem.
>
> Thanks for your input.

No probs.


--
Beav

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