Gs750 Wet Weight?

[Guest]

Trying to figure out the spring rate I need for my bike, I am ready to make a purchase.

(I wish I could have weighed my bike at the local grain bin,
but they were swamped with the harvest season , (no time) and the weather is a little brisk now.)

Trying to figure out the total "wet" weight of my bike.

This is for a 1977 gs750 B, I found that the dry weight is 426 lbs, the bike is stock with engine guards. (probably another 5-7 lbs?)

Based on my online search gas weighs about 6.073 pounds per US Gallon.

I believe the factory tank holds 4 gallons (cant find a specific capacity), which would equal 24.29lbs roughly, totaling 450.29 lbs alone w/o oil & rider.

Based on the raceTech site it says the stock spring rate is 0.45 kg/mm (stock)

I rarely carry passengers or carry cargo. I enjoy spirited rides and love twisty roads, My bike is for spirited street rides, no track days.

I wish I could afford a front end swap, but funds don't allow and want to keep it somewhat original.

My plan is to order a set of sonic springs.

Any input is appreciated, Im tired of my squishy front end.

Thanks in advance.

[posplayr]

Race tech has a calculator for spring rate. Stock springs are typically way soft. Most guys are going 9kg/mm springs

[Nessism]

This is for a 1977 gs750 B, I found that the dry weight is 426 lbs, the bike is stock with engine guards.

According to the factory Suzuki service manual your bike's dry weight is 492 lbs. + accessories.

[Steve]

According to the factory Suzuki service manual your bike's dry weight is 492 lbs. + accessories.

SuzukiCycles.org also has the dry weight at 492.

GS 750 1977
Overall Length: 2,225 mm (87.6 in)
Overall Width: 855 mm (33.7 in)
Overall Height: 1,170 mm (46.0 in)
Ground Clearance: 150 mm (5.9 in)
Wheelbase: 1,490 mm (58.7 in)
Dry Weight: 223 kg (492 lbs)
Engine type: Air-cooled 748 cc inline-4, DOHC, 8 valves. 72 hp/ 8,500 rpm, 60 Nm/ 7,000 rpm.

.

[halz426]

Thanks for the correction, i dont remember what site i got the 426lbs from.

[tkent02]

When you buy your springs from Sonic, Rich will tell you what you need to know. He's a member of this forum, and very helpful.

[Big Rich]

You can weigh the bike on a bathroom scale as well (one wheel at a time, so only approximately half the weight at a time). When one wheel is on the scale, make sure the other wheel is parked on a 2x4 or something to keep the wheels level - the weight of the gas and oil will flow downhill and can skew your measurements.

[halz426]

Big rich, good idea. I was wondering if i could use bathroom scales, but wasnt sure how accurate it would be. Thx