yamaha 30 d service query

[xs 400]

i have a low hours 2002 30 d Yam Autolube 2 stroke runs really well. had it 4 years

its due for a service, which i normally do myself

plugs,oil,fuel filter,and impeller according to the manual thats it.

question is what about autolube pump, fuel pump and thermostat?

is it worth booking it to yamaha service agent to get these checked?

[clydeoutboards]

yes is the short answer. for what it will cost and to give it a good clean and service it is well worth it but then thats my job so I am 100% biased

Dave

[PeterM]

I'd say don't bother..it's low hours and looked after...and these yams are known for being very tough.

I'd do the normal stuff and not worry.

In hours terms it may have done less than engines that are a year old and used commercially.....who would be grateful for a basic once over let alone new pumps etc ;-)

[Boats&Outboards]

I'd say carry on yourself with what you feel you can and get the bits you know you cannot do checked by your local engineer (not specifically main agent) if you feel the need! You could remove and check the stat yourself, or change it whilst your there, cleaning out the housing etc while your at it.

Your engine should give you warning signs if its got more serious issues that need further investigation. The beauty of a simple, traditional 2 Stroke over the more sophisticated models that would obviously need dealer diagnostics

Enjoy

Peter @ Boatsandoutboards4sale ~ www.BoatsandOutboards4Sale.co.uk ~ 07930 421007

[xs 400]

thanks guys!

[xs 400]

Originally Posted by PeterM

I'd say don't bother..it's low hours and looked after...and these yams are known for being very tough.

I'd do the normal stuff and not worry.

In hours terms it may have done less than engines that are a year old and used commercially.....who would be grateful for a basic once over let alone new pumps etc ;-)

thanks Pete, must get out soon!!!

maybe sib club............shhhhhhhhhhhhhhhhhhhhhhhhhh

[matt h]

Yep XS im game!

[PeterM]

Good...sib club it is...

To put things in context. I had a 1990 yam.....original everything....stonking motor..oil and fuel pumps working no problems....at 22 years old!

[xs 400]

while were on the subject of servicing........

when i open the throttle its smooth all the wat to 3/4 then there is some resistance?

is that normal?

is it the routing?

what do we think?

[xs 400]

bump

[TRevor Lawson]

Mike if you mean resistance at the lever when pushing past 3/4 throttle ? i would suggest you check lever mechanisn is free, cable not kinked/snagged and also look at linkages under hood ,adjustment, free, nothing touching them . have just checked mine seems free all way to wot. lever tension can also be adjusted on mine. or do you mean engine is a bit hesitant past 3/4 s

[xs 400]

Yes Trevor at the lever, engine is fine, but something is making it stick at 3/4.
i will check the connections at the engine and at the lever.
did you say you can adjust it at the lever?

[TRevor Lawson]

Mike, try disconecting cable at engine end , move throttle lever at front back /forwards to check if any better?if better engine end prob, if no better either cable or lever it's self? when i said mine is adjustable i meant the tension can be adjusted to make lever hard /easy to push /pull. ps how come you are on comp in middle of night.

[xs 400]

thanks Trevor ill try that...............middle of the night you say, that would be due my 2.5 year old insomniac fireman sam watching son!

awake from 2am until 6am..............ribnet you keep me sain! thanks

[PeterM]

I have the same on mine (which is essentially the same box). When in the past I have striped it (and others) I seem to recall the shape of the cam inside changes at 3/4 to stop you going to wot to easily.

However as Trevor says if you disconnect the engine end make sure that's ok (I'm sure it will be), then it's for sure the box or cables.

[xs 400]

have started servicing the engine this evening.
as per sticking throttle ,diconnecting the throttle at the engine, it is smooth, so the problem is at the engine end.

there is a cam mechanism on the triple carbs where it is clearly sticking, have tried greasing, no difference.

any advice?

[PeterM]

Originally Posted by xs 400

have started servicing the engine this evening.
as per sticking throttle ,diconnecting the throttle at the engine, it is smooth, so the problem is at the engine end.

there is a cam mechanism on the triple carbs where it is clearly sticking, have tried greasing, no difference.

any advice?

Bear in mind the carbs have other bits on the side...from memory one changes the oil pump opening etc...so they don't spring strait back etc

[Davie]

Originally Posted by xs 400

have started servicing the engine this evening.
as per sticking throttle ,diconnecting the throttle at the engine, it is smooth, so the problem is at the engine end.

there is a cam mechanism on the triple carbs where it is clearly sticking, have tried greasing, no difference.

any advice?

File the apex off that cam or turn down on a lathe the small cam follower wheel if you are fussy. No idea why these engines do this but you will still get full throttle.

[spartacus]

Just serviced my Tohatsu 60hp at the weekend. I had a fuel problem last year, in that the engine would cut out on one of my 25 litre fuel tanks. I opted to clean the inline fuel filter (on engine), replace fuel/water separator filter and install fuel pump diaphragm kit. Normally you'll get a warning if something is 'iffy'. I wouldn't normally replace the fuel pump... (on account of it being bleed'n expensive), but once you're aware of issue, then yes - replace.

Regards thermostat, the thermostat is probably okay, but remove to clean housing and renew gasket as a matter of course. Remember and lightly grease bolt threads.

If the engine is a pull start... then please replace starter cord too.

[xs 400]

thanks guys