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Discussion Starter #1
1998 M750
Carbs jetted, Arrow pipes

You tell me is this the signs of a bad fuel pump.
 

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i agree on the pump. i've got some at cycleworks but they're not drop in replacements. you'll need to use zip ties or something to mount it, like i did on pongo.

good luck,
chris
 

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if it is the pump (prolly is) an easy test is bypass the pump and see if it runs on gravity feed. also make sure the fuel c*ck operates. seems i have a faint memory some Polaris vehicle uses the same pump and offers a cheap rebuild kit.
 

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$6 for the rebuild kit - PM me and i'll send the details.
 
M

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From my invoice for the Pentagonal shaped fuel pump rebuild kit

Manufacturers Supply Co.
Dorchester Wisconsin 1-800-826-8563

Part Number 451457

Part: $5.99
Freight: $5.99


...(also make sure your fuel lines aren't getting kinked shut when you drop the tank down on the frame)
 

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I second MR's last note:

Check for kinked fuel lines. Older bike, hot weather... a hose can collapse resulting in the symptoms you've observed.

Did the '96 have a petc*ck? My '99 has a vacuum valve.
 

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I've had mine die a block and a half from home... twice..

Saturday I had replaced the timing belts and hadn't ridden it. Yesterday, I was leaving and it died. Took off the seat, raised the tank and started it.. Made sure fuel line/ vac lines weren't kinked and lowered the tank and secured it. Rode away and got a nice 100 miler in the country w/ my son on his Suzuki (poor college student, no Duc for him).

BTW, I'm thinking that the large plastic insulating foam thingie (that's a technical term right??) can go away and may be causing the pinched fuel or vacuum line..
 
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