Messages

Ouch.

On the oil pump? What plastic gear are you talking about?

Seal puller and a small block of wood or a rag folded over a bunch to pry against.

 

I like that bike though... Whatcha want for it? lol

Oooo 

oh lol

Yambits in the UK has the airbox clamps (as well as a ton of other parts if you can't first get them from Economy!).

Mach IV motors banned me on eBay after refusing to do a partial refund for a broken RD dash they sold me. Always overpriced, and shady as hell. I'll never go to one of their auctions. Grade "A" assholes. 

Ed Toomey can do it all. But, he does cranks well.
Bill Bune does cranks and boring.

Honestly, break up at high RPM for me always occurs from 3/4 throttle up when the main jet is too large. I'm on 210's now, and the bike really needs 200's or even 190's.

Idle still hangs at around 2k on occasional stops. Comes down and stays if I just barely let off the clutch for a second at a stop. Maybe the carb sync is off.

First attempt before installing the surge jets is to increase the fuel screws rich by a quarter turn. Idles even better now, will report back after I ride it again. I can safely report the bike does the ton. Gotta bed the rings somehow.

We ordered a chair from Buy Buy Baby last year. They said it would be delivered around 2 weeks after baby was born. Then, they said it wouldn't be here until May. Well, we needed a chair, so we went to the store, cancelled the order and got our refund in cash as that's how we paid. Ordered a different chair from Amazon much cheaper and it showed up in 2 days.

Fast-forward several months and I walk outside to the garage door and there's a HUGE box sitting in front of the garage. It's the original chair we ordered, were delayed on and had cancelled and were refunded for. Didn't even know someone swung by and dropped it.

[Excerpt from here:]

The GT750 is known for off-throttle and low-throttle surging. Sounds like engine gallop. Causes erratic stops a bit too if you engine brake as the motor loads and unloads.

Excerpt from here: http://pinkpossum.com/GT750/carb/BS40carbs.htm

Surging on large capacity two strokes is a common design problem. With the BS40 carbs, Suzuki had hoped that surging would not be a problem, but unfortunately many bikes still surged at low throttle openings.

The fix was described in a Suzuki Service Bulletin and is quite simple.  The passageway in front of the pilot air jet is tapped to take a screw in Mikuni air jet - the same type as all VM series carbs. Part number is BS30/97. The new air jet is either 0.8mm or 0.9mm depending upon model and effectively changes the fuel slope across the pilot jet. Order from SUDCO or your local Mikuni supplier.

At idle, there is no change in fueling, so it works just the same as before the modification. At higher revs on a closed throttle, it richens the mixture enough to eliminate that lean surge condition. The way it works is  that on overrun or at a steady at say 3,000 on a closed throttle, the motor creates a relatively strong vacuum which on a stock motor, pulls in too much air via the air jet and it creates a lean surge.

By restricting the air jet slightly it causes the mixture to become slightly richer under those conditions. At idle, the vacuum in the carb is much lower, so the change does not really affect idle or slow running.