Help: blaster will not idle.

fallingfist

Member
Aug 15, 2017
11
0
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Clarkston MI
First Post: I've been lurking for a bit since I just bought my blaster and there is a lot of great support here. I'm in need of some help please.

97 Blaster. completely stock to my knowledge when I purchased. After purchase I immediately deleted the oil injection pump and just filled with pre mixed (yes I used a kit from e-bay). 32:1.

Since purchase it has been a beast to start cold: 10-15 kicks for it to "catch". After doing a bit of research I decided to do some of the simpler upgrades/ repairs. So tonight I installed a Vito's TORS eliminator kit, installed new reeds (boyesen) and complete rebuilt the carb while I was at it. Now it starts much better 2-3 kicks but it will not idle at all. The throttle is very responsive and runs great as long as I keep "blipping" the throttle but I have the newly installed idle screw completely bottomed out and it continues to idle right down and die. To help with diagnostics I did shorten the receiver sleeve (the part that you have to grind down, then drill and tap for the idle screw to be threaded into) to the 1/2" that the installation kit said to, if anything I went a fraction of an inch deeper than suggested.

Please Help!!!

Thanks
 
did you try air screw setting on carb?
does it run better with choke on or off?
did you try air screw setting on carb?
does it run better with choke on or off?
Yes, I tried adjust the air/fuel screw and it had no effect on idle quality. I did notice the engine became less responsive as the mixture got richer. Same with the choke, it become less responsive with the choke on.
 
Yes, I tried adjust the air/fuel screw and it had no effect on idle quality. I did notice the engine became less responsive as the mixture got richer. Same with the choke, it become less responsive with the choke on.
SOLVED!!!

It was not related to the carb. I failed to disconnect the TORS system in all location. I only cut the wires from the old carb cap and left the rest connected assuming it had been deactivated. I cut the wires coming from my thumb throttle and then disconnect the black box on under the nose cover. After this she started to idle just fine.
 
Idle adjusting.
Set float level, make sure that all jets are clean and fuel flows freely from the float bowl drain
when the screw is cracked open.
Start with air screw 1.5 turns out.
Set idle screw so that it has some sort of idle. With TORS it is the big screw under seat on top of
unit. With no TORS is is the brass screw midway down carb body.
Warm up motor and then set idle screw for a faster idle, 2000rpm+
Adjust air screw either way to get the fastest idle.
Adjust air screw a little at a time leaving 10 secs or until the motor responds.
Re adjust idle screw for desired idle .
if the air screw ends up being more than 2 1/2 turns out the pi;]lot is too big.
if the air screw is less than 1/2 a turn out the pilot is too small