coreysask
New member
I have a 99 vmax 700 that is having a starting problem when it's warm.
When it's warmed up it needs to have the throttle cracked slightly to start.
When it's cold it's ok.
I've had the carbs cleaned (both by myself and the local yamaha dealer) and had the dealer adjust them as required.
I believe it's main jets are 3 sizes lower than stock (considering going 2 up so it's one lower than stock)...wifes machine and I rather it be reliable than as fast.
Anyhow...the dealer tells me that the 3 cyl yamahas always need to have the throttle cracked to start. I think this is a load of crap. My SRX never needed it, though they never worked on it.
Anyone know what really is set wrong? I'm thinking fuel screws are set wrong...rich?
When it's warmed up it needs to have the throttle cracked slightly to start.
When it's cold it's ok.
I've had the carbs cleaned (both by myself and the local yamaha dealer) and had the dealer adjust them as required.
I believe it's main jets are 3 sizes lower than stock (considering going 2 up so it's one lower than stock)...wifes machine and I rather it be reliable than as fast.
Anyhow...the dealer tells me that the 3 cyl yamahas always need to have the throttle cracked to start. I think this is a load of crap. My SRX never needed it, though they never worked on it.
Anyone know what really is set wrong? I'm thinking fuel screws are set wrong...rich?
patsxr700
New member
I saw that happened to a tired motor.. how many miles you have on it?
coreysask
New member
Only 6000 km. Good compression...runs like a charm otherwise.
Sometimes after a longer run and slowed down to a stop, but the motor still idling at 3500 it gags until it idles down to 1500 to 2000...then it's fine.
Sometimes after a longer run and slowed down to a stop, but the motor still idling at 3500 it gags until it idles down to 1500 to 2000...then it's fine.
yamyrider
Active member
they are right when they say you need throttle to start when warm. I have to do this with both my yamahas and so do the yamys I ride with.
daman
New member
cracking the throttle.....
^Yup allot of time's a tripple will need that,even a twin..
screw out 1/4 turn,,should stop that from happening..
^Yup allot of time's a tripple will need that,even a twin..
^that would be caused by a lean pilot circit,pull carb's and adjust the fuelcoreysask said:
screw out 1/4 turn,,should stop that from happening..
Yep, same with my '99 SX. I have had to do that since the day it came off the show room floor. It's typical for Yamaha triples.
Pretty common to have to crack the throttle on a warm Yamaha to start it.
SpartaSXr
Member
99 Vmax
Yes it is normal to give some throttle when the engine is WARM. Seems the flatslide carbs seal very good, the heat swells the carbs, closing off the air intake. Give'r some throttle !!
Yes it is normal to give some throttle when the engine is WARM. Seems the flatslide carbs seal very good, the heat swells the carbs, closing off the air intake. Give'r some throttle !!
carpainter29
New member
The wifes 500 twin is the same.................give er a little throttle!!!!!
coreysask
New member
Well...if that's the case...has anyone ground out part of the butterfly.
Seems non-yamaha like that they'd let it be like that. We must be missing something.
If it was a polaris...i could accept that!
Seems non-yamaha like that they'd let it be like that. We must be missing something.
If it was a polaris...i could accept that!