Hello everyone.
I am having a problem with a clients Hyster forklift.
I wish I could give model and serial but they are sun baked off of the data plate and unreadable.
The side says HYSTER 45 and I know it had the GM 2.2L engine.
Currently the problem is that it does not want to start in the mornings without pushing the primer button on the vaporizer.
Now recently the truck was running terribly and would barely idle, hard start, and generally run poorly.
I did what I could but ultimately the carburetor had alot of wear on the throttle plate and the gas valve housing was worn out as well.
I installed a new Impco CA110 carburetor, and Model J vaporizer which are identical to what it had.
The unit runs much better now with a smooth idle and great acceleration.
However in the mornings it refuses to start without me depressing the primer button on the vaporizer and its not even cold temps here at 80 degrees in the morning.
Once it is started and running and warmed up a bit the unit starts fine on its own.
What I have noticed is it seems the fuel is not being pulled into the carburetor. When I take the fuel inlet hose off the carb and put my finger over the carb fuel inlet fitting while cranking I can feel no vacuum. I always thought the model J needed to feel some vacuum at the output to allow for fuel flow.
I am wondering now if the engine has low cranking vacuum in the morning?
Sorry so lengthy.
Thanks a ton.
Chris